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CondominiumResidential
$791,754$563 / 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 $575,000 on Jul 25, 2019

23 KNOLLWOOD CT

BURLINGTON, MA 01803
2
Beds
2.5
Baths
1,406 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.
30.95 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$792K
$747K low$836K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$575,000 · Jul 25, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,749 (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.$779,300 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$779,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$797,620

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.21 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.0.2 percent flood zone

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.30.95
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

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.

M
Marshall Simonds Middle SchoolA-
Middle · Grades 6–8 · 0.5 mi
E
Memorial Elementary SchoolC+
Elementary · Grades KG–5 · 0.7 mi
H
Burlington High SchoolB
High · Grades 9–12 · 1.5 mi

District: Burlington School District

Neighborhood · ZIP 01803These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.79

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
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.1.2%
PopulationHow many people live in this area.26,627
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,344 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$134,239
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$162,937
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

23 Knollwood Ct 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 more per square foot than 86% of homes in Burlington 01803
  • Smaller than 78% of homes in Burlington 01803
  • Among the largest lots in Middlesex County
  • Newer than 80% of homes in Burlington 01803

What homes are worth in Burlington 01803

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

This home
$414K$1.6M

This home is worth more than 47% of homes in Burlington 01803.

How it measures up in Burlington 01803

The dot is this home. The mark in the middle is the typical home in Burlington 01803.

Estimated value$791,754
CheaperTypical $802,826Pricier

Pricier than 47% of homes nearby

Price per ft²$563
CheaperTypical $436Pricier

Pricier than 86% of homes nearby

Living area1,406 ft²
SmallerTypical 1,864 ft²Bigger

Bigger than 22% of homes nearby

Lot size30.95 ac
SmallerTypical 0.46 acBigger

Bigger than 98% of homes nearby

Year built1987
OlderTypical 1964Newer

Newer than 80% of homes nearby

How 23 Knollwood Ct ranks against every home in each area.
MeasureThis homeBurlington 01803Middlesex County
Estimated valuepricier than$791,75447% of homes51% of homes
Price per ft²pricier than$56386% of homes70% of homes
Living areabigger than1,406 ft²22% of homes30% of homes
Lot sizebigger than30.95 ac98% of homesalmost all homes
Year builtnewer than198780% of homes80% of homes

About 23 Knollwood Ct

How much is 23 Knollwood Ct, Burlington, MA worth?

The TopHap Estimate for 23 Knollwood Ct, Burlington, MA is $791,754 as of Aug 30, 2026. The likely range is $747,033 to $836,475. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 23 Knollwood Ct, Burlington, MA last sell?

23 Knollwood Ct, Burlington, MA last sold on Jul 25, 2019 for $575,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 23 Knollwood Ct, Burlington, MA?

23 Knollwood Ct, Burlington, MA has 2 bedrooms, 2.5 bathrooms, 1,406 square feet of living space and a 30.95-acre lot.

When was 23 Knollwood Ct, Burlington, MA built?

23 Knollwood Ct, Burlington, MA was built in 1987, making it 39 years old. The building has 1 story.

What schools serve 23 Knollwood Ct, Burlington, MA?

23 Knollwood Ct, Burlington, MA is assigned to Marshall Simonds Middle School (middle), rated A-; Memorial Elementary School (elementary), rated C+; Burlington High School (high), rated B. All sit in Burlington School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 23 Knollwood Ct, Burlington, MA compare to other homes in Burlington 01803?

Among the 7,276 homes in Burlington 01803, it is worth more than 47% of them ($791,754 against a typical $802,826), its price per square foot is higher than 86% of them ($563 against a typical $436), it is bigger than 22% of them (1,406 ft² against a typical 1,864 ft²), its lot is bigger than 98% of them (30.95 ac against a typical 0.46 ac) and it is newer than 80% of them (1987 against a typical 1964). Measured against all of Middlesex County, it is worth more than 51% 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 23 Knollwood Ct, Burlington, MA?

The 2025 property tax bill for 23 Knollwood Ct, Burlington, MA was $6,749. The county assessed it at $779,300.

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