Portland Appraisal Blog

Detached-home sales occurred throughout the year in Troutdale during 2024 and 2025, although activity was not evenly distributed across the calendar. Sales generally increased during the spring, softened somewhat during the summer months, and strengthened again during the fall.

The table below compares monthly sales activity across both years.

Month	2024	2025	Change
January	6	7	+1 home
February	8	9	+1 home
March	9	8	-1 home
April	10	14	+4 homes
May	10	15	+5 homes
June	13	8	-5 homes
July	9	7	-2 homes
August	8	11	+3 homes
September	12	14	+2 homes
October	10	9	-1 home
November	9	11	+2 homes
December	8	10	+2 homes

Sales activity was generally consistent between 2024 and 2025, although some months experienced noticeable year-over-year changes. April and May recorded increases of 4 and 5 sales, respectively, while June experienced the largest decline, falling by 5 sales. Despite these fluctuations, the overall seasonal pattern remained similar across both years.

The chart below displays detached-home sales by calendar month during the study period.

A clear seasonal pattern emerged. Sales activity increased during the spring months, with April through June accounting for 70 sales. Activity softened somewhat during July and August before strengthening again during the fall months. September through November accounted for 65 sales, nearly matching the spring selling season.

The table below summarizes monthly sales activity and includes average sales price, home size, year built, lot size, and affordable-home count.

Month	Sales	Avg Close Price	Avg Total SF	Avg Year Built	Avg Acres	# Afford.
Jan	13	$496,685	1,656	1994	0.165	1
Feb	17	$483,641	1,717	1985	0.170	1
Mar	17	$462,167	1,670	1990	0.155	3
Apr	24	$518,725	1,836	1989	0.190	6
May	25	$519,482	1,696	1987	0.197	3
Jun	21	$498,893	1,681	1990	0.223	4
Jul	16	$509,219	1,741	1991	0.221	2
Aug	19	$534,033	1,896	1990	0.285	3
Sep	26	$511,969	1,813	1986	0.325	7
Oct	19	$476,653	1,656	1988	0.169	8
Nov	20	$507,087	1,752	1989	0.197	7
Dec	18	$492,983	1,635	1987	0.215	5
Total/ Avg	235	$502,664	1,735	1989	0.214	50

Note: The Total/Avg row reports total sales and total affordable homes. All other columns represent averages for the study period.

How affordability is defined: The Portland Appraisal Blog Affordability Index (PABAI) was used to evaluate affordability during the study period. PABAI calculates the income needed to buy each home using its actual reported price, taxes, HOA dues, and an insurance estimate, financed at the Freddie Mac 30-year rate in effect at the time of sale. A home is considered affordable if the required income does not exceed the HUD median family income for the Portland-Vancouver-Hillsboro MSA in effect at the time of sale.

September recorded the highest number of sales with 26 transactions, followed closely by May with 25 sales and April with 24 sales. January was the slowest month, with 13 sales.

Average home size and construction year varied within a relatively narrow range throughout the year, while monthly average close prices showed somewhat greater variation. Average lot sizes were highest during August and September, although those months coincided with the sales of the 2.37-acre property sold in August and the 3.95-acre property sold in September, the two largest lots in the entire dataset. Those individual transactions had an outsized influence on the monthly lot-size averages.

Affordable-home activity was strongest during the fall months. September through November accounted for 22 affordable-home sales, including 8 affordable sales in October, the highest monthly total recorded during the study period. Extending the period through December increases the total to 27 of the 50 homes classified as affordable under PABAI.

This pattern coincided with generally lower mortgage rates during much of 2025 relative to 2024. Previous Troutdale studies also found that homes sold during 2025 tended to be somewhat smaller and less expensive than those sold during 2024, both of which contributed to improved affordability conditions.

Troutdale’s detached-home market exhibited two primary selling seasons during 2024-2025, with activity peaking during April through June and again during September through November. September recorded the highest number of sales, while affordable-home opportunities were most common during the fall months.

Related Studies

City of Troutdale Housing Market Snapshot – 2025

PAB Insights: What Could Different Household Incomes Buy Among Troutdale’s Affordable Homes?

About PAB Insights

PAB Insights is a Portland Appraisal Blog (PAB) series providing concise, data-driven answers to individual housing-market questions using transaction-level research, local market knowledge, and proprietary models, such as the Portland Appraisal Blog Affordability Index (PABAI).

Sources & Further Reading

All data presented in this PAB Insight is sourced directly from RMLS and has been subjected to our rigorous cleaning and validation process to ensure reliability for detached single-family residential analysis in the six-county Portland Region. The trends, comparisons, and commentary are the result of original appraisal expertise and independent analysis—not aggregated from secondary sources or news summaries.

• RMLS Data Challenges: Portland Appraisal Blog
• The Portland Region – Six-County Market Area Overview: Portland Appraisal Blog
• Portland Affordability Index – PABAI: A Realistic Housing Qualification Metric for the Portland Region: Portland Appraisal Blog
• HUD Portland-Vancouver-Hillsboro, OR-WA MSA: Median Family Income
• City of Troutdale Housing Market Snapshot – 2025: Portland Appraisal Blog
• PAB Insights: What Could Different Household Incomes Buy Among Troutdale’s Affordable Homes?: Portland Appraisal Blog
• PAB Insights: What Income Was Required to Buy a Home in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Home Sizes Sold Most Often in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: When Were Troutdale’s Homes Built (2024-2025)?: Portland Appraisal Blog
• PAB Insights: What Lot Sizes Defined the Troutdale Market (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Bedroom Counts Dominated the Troutdale Market (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Bathroom Configurations Sold Most Often in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: How Did Buyers Finance Homes in Troutdale (2024-2025)?: Portland Appraisal Blog

Coda

Thanks for reading—I hope you found a useful insight or an unexpected nugget along the way. If you enjoyed the post, please consider subscribing for future updates.

Are you an agent in Portland who wonders why appraisers always do “x”?

A homeowner with questions about appraiser methodology?

If so, feel free to reach out—I enjoy connecting with market participants across Portland and the surrounding counties, and am always happy to help where I can.

And if you’re in need of appraisal services in Troutdale or anywhere in the Portland Region, we’d be glad to assist.

About the Author — Abdur Abdul‑Malik, SRA, ASA

Abdur Abdul‑Malik is the founder, author, and publisher of the Portland Appraisal Blog, where he produces original regional and neighborhood‑level housing analytics for the Portland Region. He is a certified residential appraiser serving Oregon and Washington, drawing on RMLS transaction data, public records, and custom segmentation models he has built.

He developed the Portland Appraisal Blog Affordability Index (PABAI), a payment‑based affordability metric built from actual RMLS sales. PABAI incorporates weekly updates based on the prevailing 30‑year fixed mortgage rate, providing a locally grounded measure of housing affordability across the region.

Learn more → PABAI explainer • mortgage rate series • full author bio

Detached-home sales in Troutdale were primarily financed with conventional loans during 2024 and 2025, although FHA financing also played a meaningful role in the market. Financing patterns were generally consistent between both years, with one notable exception: FHA financing became more common in 2025.

The table below compares financing types reported for detached-home sales during each year. Only financing categories with at least one recorded sale during the study period are displayed below.

Category	2024	2025	Change
Cash	10	11	+1 home
Conventional	77	77	No Change
FHA	17	26	+9 homes
Seller Financing	0	1	+1 home
VA	7	7	No Change
Other	1	1	No Change
Total # of Sales	112	123	+11 homes

Note: Financing data are based on information reported by listing agents in RMLS and may not reflect subsequent loan changes or refinances.

Conventional financing remained unchanged at 77 sales in both years and continued to dominate the market. FHA financing increased from 17 sales in 2024 to 26 sales in 2025, a gain of 9 sales. Cash purchases increased modestly from 10 to 11 sales, while VA financing remained stable at 7 sales in each year.

The table below summarizes active financing categories during the study period and includes the number of sales as well as average close price, home size, construction era, lot size, and affordable-home count.

Type	Sales	Avg Close Price	Avg Total SF	Avg Year Built	Avg Acres	# Afford.
Cash	21	$531,264	1,808	1991	0.359	3
Conven.	154	$505,667	1,759	1988	0.204	27
FHA	43	$479,577	1,659	1989	0.178	14
Seller	1	$520,000	1,964	1988	0.220	0
VA	14	$496,422	1,608	1988	0.192	5
Other	2	$502,500	1,568	1962	0.425	1
Total/ Avg	235	$502,664	1,735	1989	0.214	50

Note: The Total/Avg row reports total sales and total affordable homes. All other columns represent averages for the study period.

How affordability is defined: The Portland Appraisal Blog Affordability Index (PABAI) was used to evaluate affordability during the study period. PABAI calculates the income needed to buy each home using its actual reported price, taxes, HOA dues, and an insurance estimate, financed at the Freddie Mac 30-year rate in effect at the time of sale. A home is considered affordable if the required income does not exceed the HUD median family income for the Portland-Vancouver-Hillsboro MSA in effect at the time of sale.

Conventional financing accounted for 154 of 235 detached-home sales, or 65.53% of the market. FHA financing ranked second with 43 sales, representing 18.30% of all detached-home transactions. Together, conventional and FHA financing accounted for 197 of 235 sales, or 83.83% of the market, during the study period.

The increase in FHA activity aligns with findings from previous Troutdale studies showing improved affordability conditions during 2025. FHA financing was associated with 14 of the 50 affordable detached-home sales identified during the study period, while conventional financing was associated with 27 affordable sales. VA financing accounted for an additional 5 affordable-home purchases.

Cash buyers purchased the highest-priced cohort of homes, averaging a close price of $531,264 compared with the overall market average of $502,664. Cash purchases were also associated with larger homes and substantially larger lots, averaging 1,808 square feet and 0.359 acres, respectively.

VA financing maintained a meaningful presence with 14 sales, while seller-provided financing and other financing methods were rarely used, accounting for only 3 combined sales during the study period (1.28%).

Conventional financing dominated Troutdale’s detached-home market, accounting for nearly two-thirds of the market, while FHA financing played a significant role in helping buyers access the community’s more affordable housing opportunities.

Related Studies

City of Troutdale Housing Market Snapshot – 2025

PAB Insights: What Could Different Household Incomes Buy Among Troutdale’s Affordable Homes?

About PAB Insights

PAB Insights is a Portland Appraisal Blog (PAB) series providing concise, data-driven answers to individual housing-market questions using transaction-level research, local market knowledge, and proprietary models, such as the Portland Appraisal Blog Affordability Index (PABAI).

Sources & Further Reading

All data presented in this PAB Insight is sourced directly from RMLS and has been subjected to our rigorous cleaning and validation process to ensure reliability for detached single-family residential analysis in the six-county Portland Region. The trends, comparisons, and commentary are the result of original appraisal expertise and independent analysis—not aggregated from secondary sources or news summaries.

• RMLS Data Challenges: Portland Appraisal Blog
• The Portland Region – Six-County Market Area Overview: Portland Appraisal Blog
• Portland Affordability Index – PABAI: A Realistic Housing Qualification Metric for the Portland Region: Portland Appraisal Blog
• HUD Portland-Vancouver-Hillsboro, OR-WA MSA: Median Family Income
• City of Troutdale Housing Market Snapshot – 2025: Portland Appraisal Blog
• PAB Insights: What Could Different Household Incomes Buy Among Troutdale’s Affordable Homes?: Portland Appraisal Blog
• PAB Insights: What Income Was Required to Buy a Home in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Home Sizes Sold Most Often in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: When Were Troutdale’s Homes Built (2024-2025)?: Portland Appraisal Blog
• PAB Insights: What Lot Sizes Defined the Troutdale Market (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Bedroom Counts Dominated the Troutdale Market (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Bathroom Configurations Sold Most Often in Troutdale (2024-2025)?: Portland Appraisal Blog

Coda

Thanks for reading—I hope you found a useful insight or an unexpected nugget along the way. If you enjoyed the post, please consider subscribing for future updates.

Are you an agent in Portland who wonders why appraisers always do “x”?

A homeowner with questions about appraiser methodology?

If so, feel free to reach out—I enjoy connecting with market participants across Portland and the surrounding counties, and am always happy to help where I can.

And if you’re in need of appraisal services in Troutdale or anywhere in the Portland Region, we’d be glad to assist.

About the Author — Abdur Abdul‑Malik, SRA, ASA

Abdur Abdul‑Malik is the founder, author, and publisher of the Portland Appraisal Blog, where he produces original regional and neighborhood‑level housing analytics for the Portland Region. He is a certified residential appraiser serving Oregon and Washington, drawing on RMLS transaction data, public records, and custom segmentation models he has built.

He developed the Portland Appraisal Blog Affordability Index (PABAI), a payment‑based affordability metric built from actual RMLS sales. PABAI incorporates weekly updates based on the prevailing 30‑year fixed mortgage rate, providing a locally grounded measure of housing affordability across the region.

Learn more → PABAI explainer • mortgage rate series • full author bio

Detached-home sales in Troutdale were overwhelmingly concentrated among homes with two or two-and-a-half bathrooms during 2024 and 2025. While bathroom counts ranged from one bathroom to four-and-a-half bathrooms, the typical detached home sold during the study period contained approximately two-and-a-half bathrooms.

The table below compares key bathroom-count metrics across both years.

Category	2024	2025	Change
Average # of Bathrooms	2.34	2.27	-3.05%
Median # of Bathrooms	2.50	2.50	No Change
Highest Bathroom Count	3.50	4.50	+1 bathroom
Lowest Bathroom Count	1.50	1.00	-0.5 bathrooms
Total # of Sales	112	123	+11 homes

Note: Half bathrooms were converted to 0.5 bathrooms for analytical purposes. For example, a home with two full bathrooms and one half bathroom is reported as 2.5 bathrooms in this study.

The average number of bathrooms declined slightly from 2.34 in 2024 to 2.27 in 2025, while the median remained unchanged at 2.5 bathrooms. The largest home sold in 2025 contained 4.5 bathrooms, while the smallest detached-home sale contained a single bathroom.

The chart below shows where detached-home sales were concentrated by bathroom count during 2024 and 2025.

Bathroom counts were highly concentrated. Two-bathroom homes accounted for 93 sales, while two-and-a-half-bathroom homes accounted for 99 sales. Together, these two categories represented the vast majority of detached-home activity during the study period.

The table below summarizes each bathroom-count category and includes the number of sales as well as average close price, home size, construction era, and lot size.

Bathrooms Range	Sales	Avg Close Price	Avg Total SF	Avg Year Built	Avg Acres
0 Baths	0	—	—	—	—
0.5 Baths	0	—	—	—	—
1 Bath	4	$429,375	1,089	1974	0.142
1.5 Baths	11	$483,582	1,397	1962	0.555
2 Baths	93	$477,304	1,446	1986	0.203
2.5 Baths	99	$515,871	1,937	1996	0.164
3 Baths	22	$524,345	2,022	1984	0.306
3.5 Baths	5	$650,600	2,452	2001	0.266
4 Baths	0	—	—	—	—
4.5 Baths	1	$840,000	5,100	1907	0.500
5 Baths	0	—	—	—	—
5.5 Baths	0	—	—	—	—
≥ 6 Baths	0	—	—	—	—
Total/Avg	235	$502,664	1,735	1989	0.2140

The market was overwhelmingly concentrated. Two- and two-and-a-half-bathroom homes accounted for 192 of 235 sales, or 81.70% of all detached-home transactions during the study period. Two-and-a-half-bathroom homes alone represented 42.13% of the Troutdale market.

Average close price generally increased as bathroom counts increased. Two-bathroom homes had an average close price of $477,304, while two-and-a-half-bathroom homes averaged $515,871. Homes with three or more bathrooms generally featured higher average close price, although sales counts became much smaller in those categories.

Although the difference between two and two-and-a-half bathrooms may appear modest on the surface, the underlying housing stock differs substantially. Two-bathroom homes averaged 1,446 square feet, while two-and-a-half-bathroom homes averaged 1,937 square feet, a difference of nearly 500 square feet. By comparison, the size differences between adjacent categories were much smaller, with the difference between a one-and-a-half-bathroom home and a two bathroom home being only 49 square feet on average. Likewise, the gap between a two-and-a-half bathroom home and a three-bathroom home only averaged 85 square feet.

Two-and-a-half-bathroom homes also skewed newer than two-bathroom homes, averaging a 1996 construction date compared with 1986 for two-bathroom homes. This pattern reinforces findings from previous studies showing that homes built during later development cycles tended to be larger and offer additional amenities. For buyers, choosing a two-and-a-half-bathroom home often meant stepping into a newer and substantially larger segment of the Troutdale housing stock rather than simply gaining an additional half bathroom.

Troutdale’s detached-home market was overwhelmingly concentrated among two- and two-and-a-half-bathroom homes, with 2.5-bathroom homes representing the most common configuration.

Related Studies

City of Troutdale Housing Market Snapshot – 2025

PAB Insights: When Were Troutdale’s Homes Built (2024-2025)?

About PAB Insights

PAB Insights is a Portland Appraisal Blog (PAB) series providing concise, data-driven answers to individual housing-market questions using transaction-level research, local market knowledge, and proprietary models, such as the Portland Appraisal Blog Affordability Index (PABAI).

Sources & Further Reading

All data presented in this PAB Insight is sourced directly from RMLS and has been subjected to our rigorous cleaning and validation process to ensure reliability for detached single-family residential analysis in the six-county Portland Region. The trends, comparisons, and commentary are the result of original appraisal expertise and independent analysis—not aggregated from secondary sources or news summaries.

• RMLS Data Challenges: Portland Appraisal Blog
• The Portland Region – Six-County Market Area Overview: Portland Appraisal Blog
• City of Troutdale Housing Market Snapshot – 2025: Portland Appraisal Blog
• PAB Insights: What Could Different Household Incomes Buy Among Troutdale’s Affordable Homes?: Portland Appraisal Blog
• PAB Insights: What Income Was Required to Buy a Home in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Home Sizes Sold Most Often in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: When Were Troutdale’s Homes Built (2024-2025)?: Portland Appraisal Blog
• PAB Insights: What Lot Sizes Defined the Troutdale Market (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Bedroom Counts Dominated the Troutdale Market (2024-2025)?: Portland Appraisal Blog

Coda

Thanks for reading—I hope you found a useful insight or an unexpected nugget along the way. If you enjoyed the post, please consider subscribing for future updates.

Are you an agent in Portland who wonders why appraisers always do “x”?

A homeowner with questions about appraiser methodology?

If so, feel free to reach out—I enjoy connecting with market participants across Portland and the surrounding counties, and am always happy to help where I can.

And if you’re in need of appraisal services in Troutdale or anywhere in the Portland Region, we’d be glad to assist.

About the Author — Abdur Abdul‑Malik, SRA, ASA

Abdur Abdul‑Malik is the founder, author, and publisher of the Portland Appraisal Blog, where he produces original regional and neighborhood‑level housing analytics for the Portland Region. He is a certified residential appraiser serving Oregon and Washington, drawing on RMLS transaction data, public records, and custom segmentation models he has built.

He developed the Portland Appraisal Blog Affordability Index (PABAI), a payment‑based affordability metric built from actual RMLS sales. PABAI incorporates weekly updates based on the prevailing 30‑year fixed mortgage rate, providing a locally grounded measure of housing affordability across the region.

Learn more → PABAI explainer • mortgage rate series • full author bio

Detached-home sales in Troutdale were heavily concentrated among three- and four-bedroom homes during 2024 and 2025. While bedroom counts ranged from two to five bedrooms, the typical detached home sold during the study period contained three bedrooms.

The table below compares key bedroom-count metrics across both years.

Category	2024	2025	Change
Average # of Bedrooms	3.35	3.28	-1.9%
Median # of Bedrooms	3.00	3.00	No change
Highest Bedroom Count	5.00	5.00	No change
Lowest Bedroom Count	3.00	2.00	-1 bedroom
Total # of Sales	112	123	+11 homes

The average number of bedrooms declined slightly from 3.35 in 2024 to 3.28 in 2025, while the median remained unchanged at three bedrooms. The largest homes sold in both years contained five bedrooms, while the smallest detached-home sale involved a two-bedroom home in 2025.

The chart below shows where detached-home sales were concentrated by bedroom count during 2024 and 2025.

Bedroom counts were highly concentrated. Three-bedroom homes accounted for 165 sales, far exceeding every other category. Four-bedroom homes represented the second-largest segment with 63 sales, while two- and five-bedroom homes were comparatively uncommon.

The table below summarizes each bedroom-count category and includes the number of sales as well as average close price, home size, construction era, and lot size.

Bedroom Range	Sales	Avg Close Price	Avg Total SF	Avg Year Built	Avg Acres
0 BRs	0	—	—	—	—
1 BR	0	—	—	—	—
2 BRs	1	$422,500	980	1979	0.130
3 BRs	165	$489,267	1,587	1987	0.227
4 BRs	63	$528,396	2,056	1994	0.181
5 BRs	6	$614,250	2,565	1977	0.225
6 BRs	0	—	—	—	—
≥ 7 BRs	0	—	—	—	—
Total/Avg	235	$502,664	1,735	1989	0.2140

The market was overwhelmingly concentrated. Three- and four-bedroom homes accounted for 228 of 235 sales, or 97.02% of all detached-home transactions during the study period. Three-bedroom homes alone represented 70.21% of the Troutdale market.

Home size and average close price generally increased as bedroom counts increased. Three-bedroom homes averaged 1,587 square feet and an average close price of $489,267, while four-bedroom homes averaged 2,056 square feet and an average close price of $528,396. Five-bedroom homes averaged 2,565 square feet and an average close price of $614,250, although that category included only six sales.

Four-bedroom homes also skewed slightly newer than three-bedroom homes, averaging a 1994 construction date compared with 1987 for three-bedroom homes. This finding aligns with previous analyses showing that homes built during later development cycles tended to be larger than older housing stock.

Troutdale’s detached-home market was overwhelmingly concentrated among three- and four-bedroom homes, with three-bedroom homes representing the dominant bedroom count.

Related Studies

City of Troutdale Housing Market Snapshot – 2025

PAB Insights: When Were Troutdale’s Homes Built (2024-2025)?

About PAB Insights

PAB Insights is a Portland Appraisal Blog (PAB) series providing concise, data-driven answers to individual housing-market questions using transaction-level research, local market knowledge, and proprietary models, such as the Portland Appraisal Blog Affordability Index (PABAI).

Sources & Further Reading

All data presented in this PAB Insight is sourced directly from RMLS and has been subjected to our rigorous cleaning and validation process to ensure reliability for detached single-family residential analysis in the six-county Portland Region. The trends, comparisons, and commentary are the result of original appraisal expertise and independent analysis—not aggregated from secondary sources or news summaries.

• RMLS Data Challenges: Portland Appraisal Blog
• The Portland Region – Six-County Market Area Overview: Portland Appraisal Blog
• City of Troutdale Housing Market Snapshot – 2025: Portland Appraisal Blog
• PAB Insights: What Could Different Household Incomes Buy Among Troutdale’s Affordable Homes?: Portland Appraisal Blog
• PAB Insights: What Income Was Required to Buy a Home in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Home Sizes Sold Most Often in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: When Were Troutdale’s Homes Built (2024-2025)?: Portland Appraisal Blog
• PAB Insights: What Lot Sizes Defined the Troutdale Market (2024-2025)?: Portland Appraisal Blog

Coda

Thanks for reading—I hope you found a useful insight or an unexpected nugget along the way. If you enjoyed the post, please consider subscribing for future updates.

Are you an agent in Portland who wonders why appraisers always do “x”?

A homeowner with questions about appraiser methodology?

If so, feel free to reach out—I enjoy connecting with market participants across Portland and the surrounding counties, and am always happy to help where I can.

And if you’re in need of appraisal services in Troutdale or anywhere in the Portland Region, we’d be glad to assist.

About the Author — Abdur Abdul‑Malik, SRA, ASA

Abdur Abdul‑Malik is the founder, author, and publisher of the Portland Appraisal Blog, where he produces original regional and neighborhood‑level housing analytics for the Portland Region. He is a certified residential appraiser serving Oregon and Washington, drawing on RMLS transaction data, public records, and custom segmentation models he has built.

He developed the Portland Appraisal Blog Affordability Index (PABAI), a payment‑based affordability metric built from actual RMLS sales. PABAI incorporates weekly updates based on the prevailing 30‑year fixed mortgage rate, providing a locally grounded measure of housing affordability across the region.

Learn more → PABAI explainer • mortgage rate series • full author bio

Detached-home sales in Troutdale were heavily concentrated on modest suburban lots during 2024 and 2025. While site sizes ranged from 0.06 acres to 3.95 acres, most detached-home sales occurred on lots of approximately 0.15 acres and less than 0.30 acres.

The table below compares key lot-size metrics across both years.

Category	2024	2025	Change
Average Lot Size	0.2160	0.2121	-1.77%
Median Lot Size	0.1800	0.1700	-5.55%
Largest Lot Size	2.3700	3.9500	+1.58 Acres
Smallest Lot Size	0.0600	0.0600	0.00%
Total # of Sales	112	123	+11 homes

Note: Lot sizes are reported by listing agents in RMLS and may be approximate. These figures are best used to identify broad market patterns rather than determine precise site areas.

The typical detached-home lot sold in 2025 was slightly smaller than in 2024. Average lot size declined from 0.2160 acres to 0.2121 acres, while median lot size declined from 0.1800 acres to 0.1700 acres. Converted to approximate square-foot equivalents, average lot sizes were approximately 9,200-9,400 square feet, while median lot sizes ranged from roughly 7,400-7,800 square feet.

The histogram below shows where detached-home sales were concentrated by lot size during 2024 and 2025.

Lot sizes were highly concentrated within a relatively narrow range. The largest concentration occurred between 0.150 and 0.174 acres (63 sales), followed by 0.175-0.199 acres (39 sales), 0.200-0.224 acres (29 sales), and 0.225-0.249 acres (27 sales). Together, these four adjacent ranges accounted for 158 of 235 sales.

Relatively few detached-home sales occurred on large lots. Sales activity declined steadily beyond 0.25 acres, while acreage properties represented only a small portion of the market.

The table below summarizes each lot-size band and includes the number of sales as well as average sales price, home size, construction era, and lot size.

Lot Size Range	Sales	Avg Close Price	Avg Total SF	Avg Year Built	Avg Acres
0.000 ac – 0.024 ac	0	—	—	—	—
0.025 ac – 0.049 ac	0	—	—	—	—
0.050 ac – 0.074 ac	12	$457,496	1,748	2006	0.0642
0.075 ac – 0.099 ac	7	$479,000	1,862	2009	0.0871
0.100 ac – 0.124 ac	22	$484,859	1,748	1996	0.1150
0.125 ac – 0.149 ac	8	$478,300	1,421	1994	0.1322
0.150 ac – 0.174 ac	63	$500,154	1,698	1990	0.1630
0.175 ac – 0.199 ac	39	$485,415	1,621	1984	0.1838
0.200 ac – 0.224 ac	29	$517,917	1,757	1988	0.2110
0.225 ac – 0.249 ac	27	$507,354	1,793	1984	0.2333
0.250 ac – 0.274 ac	10	$507,694	1,925	1982	0.2560
0.275 ac – 0.299 ac	7	$524,257	1,752	1987	0.2853
0.300 ac – 0.324 ac	3	$502,667	1,432	1977	0.3167
0.325 ac – 0.349 ac	0	—	—	—	—
0.350 ac – 0.374 ac	0	—	—	—	—
0.375 ac – 0.399 ac	0	—	—	—	—
0.400 ac – 0.424 ac	1	$447,000	1,078	1988	0.4200
0.425 ac – 0.449 ac	0	—	—	—	—
0.450 ac – 0.474 ac	0	—	—	—	—
≥ 0.475 ac	7	$704,143	2,502	1960	1.3614
Total/Average	235	$502,664	1,735	1989	0.2140

The market was highly concentrated. Lots between 0.050 and 0.299 acres accounted for 224 of 235 sales, or 95.32% of all detached-home transactions during the study period.

Sale prices generally increased as lot sizes increased, although transaction counts became sparse beyond approximately 0.30 acres. The largest-lot cohort averaged more than $700,000, 2,502 square feet, and 1.36 acres, but included only seven sales.

Smaller lots also tended to be associated with newer development. The smallest detached-home lots in the study averaged just 0.064 acres and were built around 2006, while larger-lot homes generally reflected older construction periods. This pattern aligns with a common subdivision-development trend in which newer homes are built on increasingly smaller sites.

Troutdale’s detached-home market was overwhelmingly concentrated on lots between approximately 0.05 and less than 0.30 acres.

Related Studies

City of Troutdale Housing Market Snapshot – 2025

About PAB Insights

PAB Insights is a Portland Appraisal Blog (PAB) series providing concise, data-driven answers to individual housing-market questions using transaction-level research, local market knowledge, and proprietary models, such as the Portland Appraisal Blog Affordability Index (PABAI).

Sources & Further Reading

All data presented in this PAB Insight is sourced directly from RMLS and has been subjected to our rigorous cleaning and validation process to ensure reliability for detached single-family residential analysis in the six-county Portland Region. The trends, comparisons, and commentary are the result of original appraisal expertise and independent analysis—not aggregated from secondary sources or news summaries.

• RMLS Data Challenges: Portland Appraisal Blog
• The Portland Region – Six-County Market Area Overview: Portland Appraisal Blog
• City of Troutdale Housing Market Snapshot – 2025: Portland Appraisal Blog
• PAB Insights: What Could Different Household Incomes Buy Among Troutdale’s Affordable Homes?: Portland Appraisal Blog
• PAB Insights: What Income Was Required to Buy a Home in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: Which Home Sizes Sold Most Often in Troutdale (2024-2025)?: Portland Appraisal Blog
• PAB Insights: When Were Troutdale’s Homes Built (2024-2025)?: Portland Appraisal Blog

Coda

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Are you an agent in Portland who wonders why appraisers always do “x”?

A homeowner with questions about appraiser methodology?

If so, feel free to reach out—I enjoy connecting with market participants across Portland and the surrounding counties, and am always happy to help where I can.

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About the Author — Abdur Abdul‑Malik, SRA, ASA

Abdur Abdul‑Malik is the founder, author, and publisher of the Portland Appraisal Blog, where he produces original regional and neighborhood‑level housing analytics for the Portland Region. He is a certified residential appraiser serving Oregon and Washington, drawing on RMLS transaction data, public records, and custom segmentation models he has built.

He developed the Portland Appraisal Blog Affordability Index (PABAI), a payment‑based affordability metric built from actual RMLS sales. PABAI incorporates weekly updates based on the prevailing 30‑year fixed mortgage rate, providing a locally grounded measure of housing affordability across the region.

Learn more → PABAI explainer • mortgage rate series • full author bio