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Rural ResidenceResidential
$1,471,762$366 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

351 HOLLY DR

CONCORD, CA 94521
0
Baths
4,022 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.
2.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.5M
$1.4M low$1.6M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,027 (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.$283,821 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$92,538
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$191,283
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$278,257

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
85
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
44
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
36
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
14
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
CountyCONTRA COSTA
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Ayers Elementary SchoolC+
Elementary · Grades KG–5 · 0.6 mi
M
Pine Hollow Middle SchoolB-
Middle · Grades 6–8 · 1.6 mi
H
Concord High SchoolC+
High · Grades 9–12 · 2.3 mi

District: Mount Diablo Unified School District

Neighborhood · ZIP 94521These 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.96
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.556

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.43,000
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,071 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$121,996
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,183
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.20 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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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

351 Holly Dr 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 more than 98% of homes in Concord 94521
  • Costs less per square foot than 96% of homes in Ayers
  • Among the largest homes in Concord 94521
  • Among the largest lots in Ayers
  • Older than 74% of homes in Ayers

What homes are worth in Concord 94521

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

This home
$298K$1.5M

This home is worth more than 98% of homes in Concord 94521.

How it measures up in Concord 94521

The dot is this home. The mark in the middle is the typical home in Concord 94521.

Estimated value$1,471,762
CheaperTypical $732,025Pricier

Pricier than 98% of homes nearby

Price per ft²$366
CheaperTypical $448Pricier

Pricier than 12% of homes nearby

Living area4,022 ft²
SmallerTypical 1,588 ft²Bigger

Bigger than almost all homes nearby

Lot size2.22 ac
SmallerTypical 0.17 acBigger

Bigger than almost all homes nearby

Year built1966
OlderTypical 1972Newer

Newer than 37% of homes nearby

How 351 Holly Dr ranks against every home in each area.
MeasureThis homeAyersConcord 94521Contra Costa County
Estimated valuepricier than$1,471,76295% of homes98% of homes82% of homes
Price per ft²pricier than$3664% of homes12% of homes25% of homes
Living areabigger than4,022 ft²almost all homesalmost all homes97% of homes
Lot sizebigger than2.22 acalmost all homesalmost all homes98% of homes
Year builtnewer than196626% of homes37% of homes35% of homes

About 351 Holly Dr

How much is 351 Holly Dr, Concord, CA worth?

The TopHap Estimate for 351 Holly Dr, Concord, CA is $1,471,762 as of Jul 14, 2026. The likely range is $1,392,240 to $1,551,284. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 351 Holly Dr, Concord, CA last sell?

351 Holly Dr, Concord, CA last sold on Jan 1, 1900, according to the county's recorded deed.

When was 351 Holly Dr, Concord, CA built?

351 Holly Dr, Concord, CA was built in 1966, making it 60 years old. The building has 1 story.

What schools serve 351 Holly Dr, Concord, CA?

351 Holly Dr, Concord, CA is assigned to Ayers Elementary School (elementary), rated C+; Pine Hollow Middle School (middle), rated B-; Concord High School (high), rated C+. All sit in Mount Diablo Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 351 Holly Dr, Concord, CA compare to other homes in Concord 94521?

Among the 14,273 homes in Concord 94521, it is worth more than 98% of them ($1,471,762 against a typical $732,025), its price per square foot is higher than 12% of them ($366 against a typical $448), it is bigger than almost all of them (4,022 ft² against a typical 1,588 ft²), its lot is bigger than almost all of them (2.22 ac against a typical 0.17 ac) and it is newer than 37% of them (1966 against a typical 1972). Measured against all of Contra Costa County, it is worth more than 82% 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 351 Holly Dr, Concord, CA?

The 2025 property tax bill for 351 Holly Dr, Concord, CA was $4,027. The county assessed it at $283,821.

More homes on Holly Dr

Closest homes

More homes in Concord 94521

Assigned schools

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