Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$568,020$490 / 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 96How 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 $285,000 on Mar 25, 2004

12 JOHN ST

NORTH CHELMSFORD, MA 01863
2
Beds
1.5
Baths
1,159 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$568K
$543K low$593K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$285,000 · Mar 25, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,237 (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.$448,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$259,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$189,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$538,460

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.Conventional
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.28
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Steam
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
Charles D HarringtonB-
Elementary · Grades KG–4 · 0.8 mi
H
Chelmsford High SchoolA
High · Grades 9–12 · 0.9 mi
M
McCarthy Middle SchoolB
Middle · Grades 7–8 · 1.1 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%

Owner Tools

Do you own this home?
Claim this home

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

12 John 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 less than 78% of homes in Middlesex County
  • Costs more per square foot than 88% of homes in North Chelmsford 01863
  • Smaller than 82% of homes in Middlesex County
  • Has a smaller lot than 79% of homes in North Chelmsford 01863
  • Older than 82% 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
$244K$938K

This home is worth more than 55% 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$568,020
CheaperTypical $544,730Pricier

Pricier than 55% of homes nearby

Price per ft²$490
CheaperTypical $387Pricier

Pricier than 88% of homes nearby

Living area1,159 ft²
SmallerTypical 1,300 ft²Bigger

Bigger than 36% of homes nearby

Lot size0.28 ac
SmallerTypical 0.95 acBigger

Bigger than 21% of homes nearby

Year built1940
OlderTypical 1971Newer

Newer than 18% of homes nearby

How 12 John St ranks against every home in each area.
MeasureThis homeNorth Chelmsford 01863Middlesex County
Estimated valuepricier than$568,02055% of homes22% of homes
Price per ft²pricier than$49088% of homes57% of homes
Living areabigger than1,159 ft²36% of homes18% of homes
Lot sizebigger than0.28 ac21% of homes48% of homes
Year builtnewer than194018% of homes36% of homes

About 12 John St

How much is 12 John St, North Chelmsford, MA worth?

The TopHap Estimate for 12 John St, North Chelmsford, MA is $568,020 as of Sep 24, 2026. The likely range is $542,738 to $593,302. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12 John St, North Chelmsford, MA last sell?

12 John St, North Chelmsford, MA last sold on Mar 25, 2004 for $285,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 12 John St, North Chelmsford, MA?

12 John St, North Chelmsford, MA has 2 bedrooms, 1.5 bathrooms, 1,159 square feet of living space and a 0.28-acre lot.

When was 12 John St, North Chelmsford, MA built?

12 John St, North Chelmsford, MA was built in 1940, making it 86 years old. It is a conventional home. The building has 2 stories.

What schools serve 12 John St, North Chelmsford, MA?

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

How does 12 John 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 55% of them ($568,020 against a typical $544,730), its price per square foot is higher than 88% of them ($490 against a typical $387), it is bigger than 36% of them (1,159 ft² against a typical 1,300 ft²), its lot is bigger than 21% of them (0.28 ac against a typical 0.95 ac) and it is newer than 18% of them (1940 against a typical 1971). Measured against all of Middlesex County, it is worth more than 22% 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 12 John St, North Chelmsford, MA?

The 2025 property tax bill for 12 John St, North Chelmsford, MA was $6,237. The county assessed it at $448,700.

More homes on John St

Closest homes

More homes in North Chelmsford 01863

Assigned schools

Explore the area

See this home in context

Open 12 John St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map