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Single Family ResidenceResidential
$207,013$216 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 79How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $454,440 on Apr 17, 2015

528 ANNEX RD

ONTARIO, OR 97914
1
Beds
1
Baths
960 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
151.48 ac
Lot SizeThe size of the land the home sits on, from county records.
1
StoriesHow many floors the home has above ground.

Valuation

$207K
$163K low$251K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$454,440 · Apr 17, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,672 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$288,152 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$256,047
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$32,105
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$279,898
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,337,620

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMalheur
Lot (acres)The size of the land the home sits on, from county records.151.48
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Annex Charter SchoolA+
Elementary · Grades KG–8 · 1.5 mi
H
Weiser High SchoolD
High · Grades 9–12 · 2.4 mi

District: Weiser School District 431

Neighborhood · ZIP 97914These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.125
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.119
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.17,422
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.66 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$45,977
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$63,234
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.11 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.48%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

528 Annex Rd measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 86% of homes in Ontario 97914
  • Smaller than 81% of homes in Ontario 97914
  • Among the largest lots in Ontario 97914

What homes are worth in Ontario 97914

Each bar is how many homes fall in that price range. The marker is this home.

This home
$120K$719K

This home is worth more than 14% of homes in Ontario 97914.

How it measures up in Ontario 97914

The dot is this home. The mark in the middle is the typical home in Ontario 97914.

Estimated value$207,013
CheaperTypical $309,337Pricier

Pricier than 14% of homes nearby

Price per ft²$216
CheaperTypical $229Pricier

Pricier than 38% of homes nearby

Living area960 ft²
SmallerTypical 1,328 ft²Bigger

Bigger than 19% of homes nearby

Lot size151.48 ac
SmallerTypical 0.28 acBigger

Bigger than almost all homes nearby

How 528 Annex Rd ranks against every home in each area.
MeasureThis homeOntario 97914Malheur County
Estimated valuepricier than$207,01314% of homes23% of homes
Price per ft²pricier than$21638% of homes45% of homes
Living areabigger than960 ft²19% of homes21% of homes
Lot sizebigger than151.48 acalmost all homes96% of homes

About 528 Annex Rd

How much is 528 Annex Rd, Ontario, OR worth?

The TopHap Estimate for 528 Annex Rd, Ontario, OR is $207,013 as of Sep 24, 2026. The likely range is $162,864 to $251,162. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 528 Annex Rd, Ontario, OR last sell?

528 Annex Rd, Ontario, OR last sold on Apr 17, 2015 for $454,440, according to the county's recorded deed.

How big is 528 Annex Rd, Ontario, OR?

528 Annex Rd, Ontario, OR has 1 bedrooms, 1 bathrooms, 960 square feet of living space and a 151.48-acre lot.

What schools serve 528 Annex Rd, Ontario, OR?

528 Annex Rd, Ontario, OR is assigned to Annex Charter School (elementary), rated A+; Weiser High School (high), rated D. All sit in Weiser School District 431. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 528 Annex Rd, Ontario, OR compare to other homes in Ontario 97914?

Among the 5,935 homes in Ontario 97914, it is worth more than 14% of them ($207,013 against a typical $309,337), its price per square foot is higher than 38% of them ($216 against a typical $229), it is bigger than 19% of them (960 ft² against a typical 1,328 ft²) and its lot is bigger than almost all of them (151.48 ac against a typical 0.28 ac). Measured against all of Malheur County, it is worth more than 23% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 528 Annex Rd, Ontario, OR?

The 2025 property tax bill for 528 Annex Rd, Ontario, OR was $2,672. The county assessed it at $288,152.

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Assigned schools

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