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Single Family ResidenceResidential
$264,978$325 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

306 W UNION ST

BOISE, ID 83702
2
Beds
1
Baths
816 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.
2,178 ft²
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$265K
$245K low$285K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,725 (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.$291,900 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$295,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$291,900

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.49
41
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
68
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
59
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
14
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
65
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.30%
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.undetermined

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.Conventional
CountyADA
Lot (acres)The size of the land the home sits on, from county records.0.05
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.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Longfellow Elementary SchoolB+
Elementary · Grades PK–6 · 0.5 mi
H
Boise Senior High SchoolA-
High · Grades 9–12 · 0.6 mi
M
North Junior High SchoolA
Middle · Grades 7–9 · 0.6 mi

District: Boise City Independent School District 1

Neighborhood · ZIP 83702These 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.138
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.2%
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.27,736
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.404 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,131
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,125
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.21 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.64%

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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

306 W Union 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 95% of homes in North End
  • Costs more per square foot than 92% of homes in Ada County
  • Among the smallest homes in Ada County
  • Has a smaller lot than 97% of homes in North End
  • Among the oldest homes in Ada County

What homes are worth in Boise 83702

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

This home
$197K$1.6M

This home is worth more than 9% of homes in Boise 83702.

How it measures up in Boise 83702

The dot is this home. The mark in the middle is the typical home in Boise 83702.

Estimated value$264,978
CheaperTypical $442,343Pricier

Pricier than 9% of homes nearby

Price per ft²$325
CheaperTypical $249Pricier

Pricier than 73% of homes nearby

Living area816 ft²
SmallerTypical 1,904 ft²Bigger

Bigger than 9% of homes nearby

Lot size2,178 ft²
SmallerTypical 0.14 acBigger

Bigger than 11% of homes nearby

Year built1910
OlderTypical 1953Newer

Newer than 16% of homes nearby

How 306 W Union St ranks against every home in each area.
MeasureThis homeNorth EndBoise 83702Ada County
Estimated valuepricier than$264,9785% of homes9% of homes26% of homes
Price per ft²pricier than$32573% of homes73% of homes92% of homes
Living areabigger than816 ft²5% of homes9% of homesalmost no homes
Lot sizebigger than2,178 ft²3% of homes11% of homes3% of homes
Year builtnewer than191029% of homes16% of homesalmost no homes

About 306 W Union St

How much is 306 W Union St, Boise, ID worth?

The TopHap Estimate for 306 W Union St, Boise, ID is $264,978 as of Aug 30, 2026. The likely range is $245,236 to $284,720. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 306 W Union St, Boise, ID last sell?

306 W Union St, Boise, ID last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 306 W Union St, Boise, ID?

306 W Union St, Boise, ID has 2 bedrooms, 1 bathrooms, 816 square feet of living space and a 0.05-acre lot.

When was 306 W Union St, Boise, ID built?

306 W Union St, Boise, ID was built in 1910, making it 116 years old. It is a conventional home. The building has 1 story.

What schools serve 306 W Union St, Boise, ID?

306 W Union St, Boise, ID is assigned to Longfellow Elementary School (elementary), rated B+; Boise Senior High School (high), rated A-; North Junior High School (middle), rated A. All sit in Boise City Independent School District 1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 306 W Union St, Boise, ID compare to other homes in Boise 83702?

Among the 8,369 homes in Boise 83702, it is worth more than 9% of them ($264,978 against a typical $442,343), its price per square foot is higher than 73% of them ($325 against a typical $249), it is bigger than 9% of them (816 ft² against a typical 1,904 ft²), its lot is bigger than 11% of them (2,178 ft² against a typical 0.14 ac) and it is newer than 16% of them (1910 against a typical 1953). Measured against all of Ada County, it is worth more than 26% 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 306 W Union St, Boise, ID?

The 2025 property tax bill for 306 W Union St, Boise, ID was $2,725. The county assessed it at $291,900.

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