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Single Family ResidenceResidential
$1,606,152$623 / 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 Aug 30, 2026
Last sold for $678,000 on May 13, 2010

4215 ROSCOMMON WAY

DUBLIN, CA 94568
4
Beds
2.5
Baths
2,580 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.
4,074 ft²
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.6M
$1.5M low$1.7M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$678,000 · May 13, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,166 (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.$885,613 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$267,784
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$624,829
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$868,114
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,544,670

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyALAMEDA
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2001
Lot (acres)The size of the land the home sits on, from county records.0.09
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
James Dougherty Elementary SchoolA-
Elementary · Grades KG–5 · 0.5 mi
H
Emerald High School
High · Grades 9–12 · 0.6 mi
M
Eleanor Murray Fallon Middle SchoolA
Middle · Grades 6–8 · 0.8 mi

District: Dublin Unified School District

Neighborhood · ZIP 94568These 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.48
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.575

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.96%
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.4.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.60,689
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,767 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$167,237
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$201,887
Average tempThe average temperature here across a full year.59°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.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

4215 Roscommon Way 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 80% of homes in Alameda County
  • Bigger than 86% of homes in Alameda County
  • Has a smaller lot than 80% of homes in Dublin 94568
  • Among the newest homes in Dublin Greene

What homes are worth in Dublin 94568

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

This home
$576K$2.5M

This home is worth more than 73% of homes in Dublin 94568.

How it measures up in Dublin 94568

The dot is this home. The mark in the middle is the typical home in Dublin 94568.

Estimated value$1,606,152
CheaperTypical $1,275,811Pricier

Pricier than 73% of homes nearby

Price per ft²$623
CheaperTypical $634Pricier

Pricier than 45% of homes nearby

Living area2,580 ft²
SmallerTypical 1,976 ft²Bigger

Bigger than 75% of homes nearby

Lot size4,074 ft²
SmallerTypical 0.16 acBigger

Bigger than 20% of homes nearby

Year built2000
OlderTypical 2004Newer

Newer than 46% of homes nearby

How 4215 Roscommon Way ranks against every home in each area.
MeasureThis homeDublin GreeneDublin 94568Alameda County
Estimated valuepricier than$1,606,15276% of homes73% of homes80% of homes
Price per ft²pricier than$62339% of homes45% of homes42% of homes
Living areabigger than2,580 ft²75% of homes75% of homes86% of homes
Lot sizebigger than4,074 ft²23% of homes20% of homes20% of homes
Year builtnewer than2000almost all homes46% of homes88% of homes

About 4215 Roscommon Way

How much is 4215 Roscommon Way, Dublin, CA worth?

The TopHap Estimate for 4215 Roscommon Way, Dublin, CA is $1,606,152 as of Aug 30, 2026. The likely range is $1,506,835 to $1,705,469. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4215 Roscommon Way, Dublin, CA last sell?

4215 Roscommon Way, Dublin, CA last sold on May 13, 2010 for $678,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 4215 Roscommon Way, Dublin, CA?

4215 Roscommon Way, Dublin, CA has 4 bedrooms, 2.5 bathrooms, 2,580 square feet of living space and a 0.09-acre lot.

When was 4215 Roscommon Way, Dublin, CA built?

4215 Roscommon Way, Dublin, CA was built in 2000, making it 26 years old. The building has 2 stories.

What schools serve 4215 Roscommon Way, Dublin, CA?

4215 Roscommon Way, Dublin, CA is assigned to James Dougherty Elementary School (elementary), rated A-; Emerald High School (high); Eleanor Murray Fallon Middle School (middle), rated A. All sit in Dublin Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4215 Roscommon Way, Dublin, CA compare to other homes in Dublin 94568?

Among the 22,114 homes in Dublin 94568, it is worth more than 73% of them ($1,606,152 against a typical $1,275,811), its price per square foot is higher than 45% of them ($623 against a typical $634), it is bigger than 75% of them (2,580 ft² against a typical 1,976 ft²), its lot is bigger than 20% of them (4,074 ft² against a typical 0.16 ac) and it is newer than 46% of them (2000 against a typical 2004). Measured against all of Alameda County, it is worth more than 80% 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 4215 Roscommon Way, Dublin, CA?

The 2025 property tax bill for 4215 Roscommon Way, Dublin, CA was $12,166. The county assessed it at $885,613.

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