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Single Family ResidenceResidential
$373,586$222 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $66,500 on May 2, 2023

11121 W ARCH ST

BOISE, ID 83713
4
Beds
1
Baths
1,683 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.
1.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1905
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$374K
$353K low$394K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$66,500 · May 2, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,893 (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.$497,700 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$435,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$497,700

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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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
StyleThe architectural style of the home, such as ranch or colonial.Bi-Level
CountyADA
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 200 ft²Patio · 200 ft²Porch · 50 ft²

Transaction History(4)

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
Frontier Elementary SchoolA+
Elementary · Grades KG–5 · 0.6 mi
H
Centennial High SchoolA-
High · Grades 9–12 · 1.5 mi
M
Lowell Scott Middle SchoolA+
Middle · Grades 6–8 · 1.9 mi

District: West Ada School District

Neighborhood · ZIP 83713These 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.68
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.116
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.30,972
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,641 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$85,754
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,391
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.12 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.64%

Owner Tools

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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

11121 W Arch St 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 93% of homes in Ada County
  • Costs less per square foot than 93% of homes in Ada County
  • Among the largest lots in Boise 83713
  • Among the oldest homes in Boise 83713

What homes are worth in Boise 83713

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

This home
$311K$944K

This home is worth more than 8% of homes in Boise 83713.

How it measures up in Boise 83713

The dot is this home. The mark in the middle is the typical home in Boise 83713.

Estimated value$373,586
CheaperTypical $471,923Pricier

Pricier than 8% of homes nearby

Price per ft²$222
CheaperTypical $274Pricier

Pricier than 8% of homes nearby

Living area1,683 ft²
SmallerTypical 1,779 ft²Bigger

Bigger than 45% of homes nearby

Lot size1.21 ac
SmallerTypical 0.19 acBigger

Bigger than almost all homes nearby

Year built1905
OlderTypical 1997Newer

Older than almost all homes nearby

How 11121 W Arch St ranks against every home in each area.
MeasureThis homeBoise 83713Ada County
Estimated valuepricier than$373,5868% of homes7% of homes
Price per ft²pricier than$2228% of homes7% of homes
Living areabigger than1,683 ft²45% of homes37% of homes
Lot sizebigger than1.21 acalmost all homes96% of homes
Year builtnewer than1905almost no homesalmost no homes

About 11121 W Arch St

How much is 11121 W Arch St, Boise, ID worth?

The TopHap Estimate for 11121 W Arch St, Boise, ID is $373,586 as of Oct 21, 2026. The likely range is $353,019 to $394,153. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 11121 W Arch St, Boise, ID last sell?

11121 W Arch St, Boise, ID last sold on May 2, 2023 for $66,500, according to the county's recorded deed.

How big is 11121 W Arch St, Boise, ID?

11121 W Arch St, Boise, ID has 4 bedrooms, 1 bathrooms and 1,683 square feet of living space.

When was 11121 W Arch St, Boise, ID built?

11121 W Arch St, Boise, ID was built in 1905, making it 121 years old. It is a bi-level home. The building has 2 stories.

What schools serve 11121 W Arch St, Boise, ID?

11121 W Arch St, Boise, ID is assigned to Frontier Elementary School (elementary), rated A+; Centennial High School (high), rated A-; Lowell Scott Middle School (middle), rated A+. All sit in West Ada School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 11121 W Arch St, Boise, ID compare to other homes in Boise 83713?

Among the 9,410 homes in Boise 83713, it is worth more than 8% of them ($373,586 against a typical $471,923), its price per square foot is higher than 8% of them ($222 against a typical $274), it is bigger than 45% of them (1,683 ft² against a typical 1,779 ft²), its lot is bigger than almost all of them (1.21 ac against a typical 0.19 ac) and it is newer than almost none of them (1905 against a typical 1997). Measured against all of Ada County, it is worth more than 7% 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 11121 W Arch St, Boise, ID?

The 2025 property tax bill for 11121 W Arch St, Boise, ID was $1,893. The county assessed it at $497,700.

More homes on W Arch St

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