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Single Family ResidenceResidential
$543,407$267 / 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 91How 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
Last sold for $467,533 on Jun 4, 2024

21 CASTLE ROCK RD

BARRINGTON, NH 03825
3
Beds
3
Baths
2,032 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.
3.4 ac
Lot SizeThe size of the land the home sits on, from county records.
2001
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$543K
$496K low$591K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$467,533 · Jun 4, 2024
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$192,782
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$154,226
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.61%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$350,625
FAIRWAY INDEPENDENT MORTGAGE CORP · P · recorded Jun 4, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,923 (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.$456,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$101,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$354,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$445,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$434,245

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.Cape Cod
CountySTRAFFORD
Lot (acres)The size of the land the home sits on, from county records.3.40
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Hot Water
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
Barrington Elementary SchoolC+
Elementary · Grades 1–4 · 1.7 mi
M
Barrington Middle SchoolB-
Middle · Grades 5–8 · 2.0 mi
H
Dover High School
High · Grades 9–12 · 7.5 mi

District: Barrington School District

Neighborhood · ZIP 03825These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.106

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.91%
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.5.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.9,816
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.198 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$94,366
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,444
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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

21 Castle Rock 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.

  • Bigger than 68% of homes in Strafford County
  • Has a bigger lot than 86% of homes in Strafford County
  • Newer than 77% of homes in Strafford County

What homes are worth in Barrington 03825

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

This home
$320K$983K

This home is worth more than 41% of homes in Barrington 03825.

How it measures up in Barrington 03825

The dot is this home. The mark in the middle is the typical home in Barrington 03825.

Estimated value$543,407
CheaperTypical $577,593Pricier

Pricier than 41% of homes nearby

Price per ft²$267
CheaperTypical $278Pricier

Pricier than 43% of homes nearby

Living area2,032 ft²
SmallerTypical 1,901 ft²Bigger

Bigger than 56% of homes nearby

Lot size3.4 ac
SmallerTypical 1.9 acBigger

Bigger than 77% of homes nearby

Year built2001
OlderTypical 1990Newer

Newer than 69% of homes nearby

How 21 Castle Rock Rd ranks against every home in each area.
MeasureThis homeBarrington 03825Strafford County
Estimated valuepricier than$543,40741% of homes61% of homes
Price per ft²pricier than$26743% of homes40% of homes
Living areabigger than2,032 ft²56% of homes68% of homes
Lot sizebigger than3.4 ac77% of homes86% of homes
Year builtnewer than200169% of homes77% of homes

About 21 Castle Rock Rd

How much is 21 Castle Rock Rd, Barrington, NH worth?

The TopHap Estimate for 21 Castle Rock Rd, Barrington, NH is $543,407 as of Jul 14, 2026. The likely range is $496,283 to $590,531. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Castle Rock Rd, Barrington, NH last sell?

21 Castle Rock Rd, Barrington, NH last sold on Jun 4, 2024 for $467,533, according to the county's recorded deed.

How big is 21 Castle Rock Rd, Barrington, NH?

21 Castle Rock Rd, Barrington, NH has 3 bedrooms, 3 bathrooms, 2,032 square feet of living space and a 3.40-acre lot.

When was 21 Castle Rock Rd, Barrington, NH built?

21 Castle Rock Rd, Barrington, NH was built in 2001, making it 25 years old. It is a cape cod home. The building has 2 stories.

What schools serve 21 Castle Rock Rd, Barrington, NH?

21 Castle Rock Rd, Barrington, NH is assigned to Barrington Elementary School (elementary), rated C+; Barrington Middle School (middle), rated B-; Dover High School (high). All sit in Barrington School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Castle Rock Rd, Barrington, NH compare to other homes in Barrington 03825?

Among the 4,004 homes in Barrington 03825, it is worth more than 41% of them ($543,407 against a typical $577,593), its price per square foot is higher than 43% of them ($267 against a typical $278), it is bigger than 56% of them (2,032 ft² against a typical 1,901 ft²), its lot is bigger than 77% of them (3.4 ac against a typical 1.9 ac) and it is newer than 69% of them (2001 against a typical 1990). Measured against all of Strafford County, it is worth more than 61% 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 21 Castle Rock Rd, Barrington, NH?

The 2025 property tax bill for 21 Castle Rock Rd, Barrington, NH was $8,923. The county assessed it at $456,200.

Closest homes

More homes in Barrington 03825

Assigned schools

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