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Single Family ResidenceResidential
$669,356$233 / 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 97How 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 $339,900 on Jul 23, 2004

31 DIAMOND ST

NORTH CHELMSFORD, MA 01863
4
Beds
3
Baths
2,876 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.
0.99 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$669K
$649K low$690K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$339,900 · Jul 23, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,565 (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.$832,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$325,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$506,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$783,370

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.Colonial
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.99
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(13)

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
Charles D HarringtonB-
Elementary · Grades KG–4 · 1.5 mi
M
Col Moses Parker SchoolB
Middle · Grades 5–6 · 1.6 mi
H
Chelmsford High SchoolA
High · Grades 9–12 · 1.6 mi

District: Chelmsford School District

Neighborhood · ZIP 01863These 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.76
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
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.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.1%
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.9,286
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,948 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,908
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,787
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

31 Diamond 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 more than 78% of homes in North Chelmsford 01863
  • Costs less per square foot than 98% of homes in North Chelmsford 01863
  • Bigger than 96% of homes in North Chelmsford 01863
  • Has a bigger lot than 79% of homes in Middlesex County
  • Older than 73% of homes in North Chelmsford 01863

What homes are worth in North Chelmsford 01863

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

This home
$247K$937K

This home is worth more than 78% of homes in North Chelmsford 01863.

How it measures up in North Chelmsford 01863

The dot is this home. The mark in the middle is the typical home in North Chelmsford 01863.

Estimated value$669,356
CheaperTypical $537,164Pricier

Pricier than 78% of homes nearby

Price per ft²$233
CheaperTypical $386Pricier

Pricier than 2% of homes nearby

Living area2,876 ft²
SmallerTypical 1,302 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.99 ac
SmallerTypical 0.94 acBigger

Bigger than 52% of homes nearby

Year built1955
OlderTypical 1971Newer

Newer than 27% of homes nearby

How 31 Diamond St ranks against every home in each area.
MeasureThis homeNorth Chelmsford 01863Middlesex County
Estimated valuepricier than$669,35678% of homes35% of homes
Price per ft²pricier than$2332% of homes2% of homes
Living areabigger than2,876 ft²96% of homes83% of homes
Lot sizebigger than0.99 ac52% of homes79% of homes
Year builtnewer than195527% of homes48% of homes

About 31 Diamond St

How much is 31 Diamond St, North Chelmsford, MA worth?

The TopHap Estimate for 31 Diamond St, North Chelmsford, MA is $669,356 as of Aug 30, 2026. The likely range is $648,847 to $689,865. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 Diamond St, North Chelmsford, MA last sell?

31 Diamond St, North Chelmsford, MA last sold on Jul 23, 2004 for $339,900, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 31 Diamond St, North Chelmsford, MA?

31 Diamond St, North Chelmsford, MA has 4 bedrooms, 3 bathrooms, 2,876 square feet of living space and a 0.99-acre lot.

When was 31 Diamond St, North Chelmsford, MA built?

31 Diamond St, North Chelmsford, MA was built in 1955, making it 71 years old. It is a colonial home. The building has 2 stories.

What schools serve 31 Diamond St, North Chelmsford, MA?

31 Diamond St, North Chelmsford, MA is assigned to Charles D Harrington (elementary), rated B-; Col Moses Parker School (middle), rated B; Chelmsford High School (high), rated A. All sit in Chelmsford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31 Diamond St, North Chelmsford, MA compare to other homes in North Chelmsford 01863?

Among the 3,290 homes in North Chelmsford 01863, it is worth more than 78% of them ($669,356 against a typical $537,164), its price per square foot is higher than 2% of them ($233 against a typical $386), it is bigger than 96% of them (2,876 ft² against a typical 1,302 ft²), its lot is bigger than 52% of them (0.99 ac against a typical 0.94 ac) and it is newer than 27% of them (1955 against a typical 1971). Measured against all of Middlesex County, it is worth more than 35% 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 31 Diamond St, North Chelmsford, MA?

The 2025 property tax bill for 31 Diamond St, North Chelmsford, MA was $11,565. The county assessed it at $832,000.

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Assigned schools

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