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CondominiumResidential
$827,795$281 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $440,000 on Jul 1, 2011

21 HARRISON ST

READING, MA 01867
Building report
3
Beds
2
Baths
2,950 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
2010
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$828K
$760K low$896K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$440,000 · Jul 1, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,371 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$763,800 (2026)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$763,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$735,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$933,474

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.6 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.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.Condominium
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.25
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
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.

H
Reading Memorial High SchoolA-
High · Grades 9–12 · 0.7 mi
M
Walter S. Parker Middle SchoolA-
Middle · Grades 6–8 · 0.9 mi
E
J. Warren Killam Elementary SchoolA-
Elementary · Grades KG–5 · 1.0 mi

District: Reading School District

Neighborhood · ZIP 01867These 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.29
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.81

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.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.5%
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.25,631
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,546 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$145,651
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$169,912
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

21 Harrison 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.

  • Costs less per square foot than 98% of homes in Reading 01867
  • Bigger than 84% of homes in Reading 01867
  • Has a smaller lot than 68% of homes in Reading 01867
  • Newer than 94% of homes in Middlesex County

What homes are worth in Reading 01867

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

This home
$378K$1.7M

This home is worth more than 40% of homes in Reading 01867.

How it measures up in Reading 01867

The dot is this home. The mark in the middle is the typical home in Reading 01867.

Estimated value$827,795
CheaperTypical $883,825Pricier

Pricier than 40% of homes nearby

Price per ft²$281
CheaperTypical $470Pricier

Pricier than 2% of homes nearby

Living area2,950 ft²
SmallerTypical 1,949 ft²Bigger

Bigger than 84% of homes nearby

Lot size0.25 ac
SmallerTypical 0.35 acBigger

Bigger than 32% of homes nearby

Year built2010
OlderTypical 1959Newer

Newer than 89% of homes nearby

How 21 Harrison St ranks against every home in each area.
MeasureThis homeReading 01867Middlesex County
Estimated valuepricier than$827,79540% of homes56% of homes
Price per ft²pricier than$2812% of homes6% of homes
Living areabigger than2,950 ft²84% of homes84% of homes
Lot sizebigger than0.25 ac32% of homes43% of homes
Year builtnewer than201089% of homes94% of homes

About 21 Harrison St

How much is 21 Harrison St, Reading, MA worth?

The TopHap Estimate for 21 Harrison St, Reading, MA is $827,795 as of Sep 24, 2026. The likely range is $759,755 to $895,835. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Harrison St, Reading, MA last sell?

21 Harrison St, Reading, MA last sold on Jul 1, 2011 for $440,000, according to the county's recorded deed.

How big is 21 Harrison St, Reading, MA?

21 Harrison St, Reading, MA has 3 bedrooms, 2 bathrooms, 2,950 square feet of living space and a 0.25-acre lot.

When was 21 Harrison St, Reading, MA built?

21 Harrison St, Reading, MA was built in 2010, making it 16 years old. The building has 3 stories.

What schools serve 21 Harrison St, Reading, MA?

21 Harrison St, Reading, MA is assigned to Reading Memorial High School (high), rated A-; Walter S. Parker Middle School (middle), rated A-; J. Warren Killam Elementary School (elementary), rated A-. All sit in Reading School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Harrison St, Reading, MA compare to other homes in Reading 01867?

Among the 8,629 homes in Reading 01867, it is worth more than 40% of them ($827,795 against a typical $883,825), its price per square foot is higher than 2% of them ($281 against a typical $470), it is bigger than 84% of them (2,950 ft² against a typical 1,949 ft²), its lot is bigger than 32% of them (0.25 ac against a typical 0.35 ac) and it is newer than 89% of them (2010 against a typical 1959). Measured against all of Middlesex County, it is worth more than 56% 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 Harrison St, Reading, MA?

The 2026 property tax bill for 21 Harrison St, Reading, MA was $8,371. The county assessed it at $763,800.

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