Skip to content
Skip to content
TopHapOpen in map
CondominiumResidential
$521,205$477 / 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 90How 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 $360,000 on Apr 24, 2015

27 PLYMPTON ST

WALTHAM, MA 02451
2
Beds
1
Baths
1,093 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
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

$521K
$471K low$572K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$360,000 · Apr 24, 2015
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.$233,205
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$186,564
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.57%
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.$288,000
GUARANTEED RATE · recorded Apr 24, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,626 (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.$471,100 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$471,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$533,425

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMIDDLESEX
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.Steam
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(10)

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
Thomas R Plympton Elementary SchoolC
Elementary · Grades KG–5 · 0.0 mi
H
Waltham Sr High SchoolC
High · Grades 9–12 · 1.1 mi
M
John F. Kennedy Middle SchoolA-
Middle · Grades 6–8 · 1.2 mi

District: Waltham School District

Neighborhood · ZIP 02451These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.76

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.7%
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.16,966
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,036 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,384
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$156,140
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
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

27 Plympton 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 98% of homes in The Highlands
  • Smaller than 94% of homes in The Highlands
  • Has a smaller lot than 79% of homes in Middlesex County
  • Older than 90% of homes in Waltham 02451

What homes are worth in Waltham 02451

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

This home
$349K$1.5M

This home is worth more than 8% of homes in Waltham 02451.

How it measures up in Waltham 02451

The dot is this home. The mark in the middle is the typical home in Waltham 02451.

Estimated value$521,205
CheaperTypical $780,039Pricier

Pricier than 8% of homes nearby

Price per ft²$477
CheaperTypical $467Pricier

Pricier than 54% of homes nearby

Living area1,093 ft²
SmallerTypical 1,776 ft²Bigger

Bigger than 15% of homes nearby

Lot size0.13 ac
SmallerTypical 0.18 acBigger

Bigger than 34% of homes nearby

Year built1900
OlderTypical 1957Newer

Newer than 10% of homes nearby

How 27 Plympton St ranks against every home in each area.
MeasureThis homeThe HighlandsWaltham 02451Middlesex County
Estimated valuepricier than$521,2052% of homes8% of homes16% of homes
Price per ft²pricier than$47759% of homes54% of homes53% of homes
Living areabigger than1,093 ft²6% of homes15% of homes15% of homes
Lot sizebigger than0.13 ac33% of homes34% of homes21% of homes
Year builtnewer than190020% of homes10% of homes16% of homes

About 27 Plympton St

How much is 27 Plympton St, Waltham, MA worth?

The TopHap Estimate for 27 Plympton St, Waltham, MA is $521,205 as of Jul 14, 2026. The likely range is $470,839 to $571,571. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 27 Plympton St, Waltham, MA last sell?

27 Plympton St, Waltham, MA last sold on Apr 24, 2015 for $360,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 27 Plympton St, Waltham, MA?

27 Plympton St, Waltham, MA has 2 bedrooms, 1 bathrooms and 1,093 square feet of living space.

When was 27 Plympton St, Waltham, MA built?

27 Plympton St, Waltham, MA was built in 1900, making it 126 years old. It is a condo/apartment home. The building has 2 stories.

What schools serve 27 Plympton St, Waltham, MA?

27 Plympton St, Waltham, MA is assigned to Thomas R Plympton Elementary School (elementary), rated C; Waltham Sr High School (high), rated C; John F. Kennedy Middle School (middle), rated A-. All sit in Waltham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 27 Plympton St, Waltham, MA compare to other homes in Waltham 02451?

Among the 4,967 homes in Waltham 02451, it is worth more than 8% of them ($521,205 against a typical $780,039), its price per square foot is higher than 54% of them ($477 against a typical $467), it is bigger than 15% of them (1,093 ft² against a typical 1,776 ft²), its lot is bigger than 34% of them (0.13 ac against a typical 0.18 ac) and it is newer than 10% of them (1900 against a typical 1957). Measured against all of Middlesex County, it is worth more than 16% 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 27 Plympton St, Waltham, MA?

The 2025 property tax bill for 27 Plympton St, Waltham, MA was $4,626. The county assessed it at $471,100.

Closest homes

More homes in Waltham 02451

Assigned schools

Explore the area

See this home in context

Open 27 Plympton 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