Skip to content
Skip to content
TopHapOpen in map
CondominiumResidential

426 Main St

WALTHAM, MA 02452
0.66 ac
Lot SizeThe size of the land the home sits on, from county records.
2006
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.
Built 200610 units1,738–2,421 ft²
$9M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$891K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$409
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+15.2%vs the Waltham ZIP median sale $/ft² ($355)

Sales Performance

—
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
0
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
0.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+1.7%per yeartypical hold 5.0 yrsfrom 14 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20062009201320152016201820212024
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20062009201320152016201820212024

25 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$741K$827K$913K$998K1,738 ft²1,875 ft²2,011 ft²2,148 ft²2,284 ft²2,421 ft²
3 bd
3 bed
10 units
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
3 bd · 2.5 ba · 2,410 ft²
2 units
3 bd · 2.5 ba · 2,421 ft²
2 units
One-off layouts
6 units

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$741K–$741K
1 unit
$818K–$818K
1 unit
$854K–$854K
1 unit
$872K–$897K
3 units
$972K–$998K
4 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.100%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.0%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.10.3 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.0%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.45%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$883,857
Median tax billThe middle annual property tax bill among the building's units.$7,707
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit 3Dec 20, 2024$840,000Unit 2Sep 13, 2023$815,000Unit 5Jun 16, 2021$825,000Unit 1Apr 27, 2020$700,000Unit 2Apr 23, 2018$650,000Unit 1Dec 15, 2017$600,000Unit 8Dec 7, 2016$601,000Unit 10Oct 23, 2015$475,000Unit 2Dec 12, 2014$522,500Unit 8Apr 30, 2013$549,900

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
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.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, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
John W. McDevitt Middle SchoolB
Middle · Grades 6–8 · 0.3 mi
E
James Fitzgerald Elementary SchoolB-
Elementary · Grades KG–5 · 0.9 mi
H
Waltham Sr High SchoolC
High · Grades 9–12 · 1.2 mi

District: Waltham School District

Neighborhood · ZIP 02452These 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.93
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 100.77

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.17,230
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,328 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,289
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$131,986
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%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

426 Main St # 1
3 bd · 2.5 ba · 1,987 ft²
$897K
426 Main St
3 bd · 2.5 ba · 2,109 ft²
$854K
426 Main St # 3
3 bd · 2.5 ba · 2,146 ft²
$872K
426 Main St
3 bd · 2.5 ba · 2,410 ft²
$972K
426 Main St # 5
3 bd · 2.5 ba · 2,421 ft²
$975K
426 Main St
3 bd · 2.5 ba · 2,421 ft²
$998K
426 Main St # 7
3 bd · 2.5 ba · 2,410 ft²
$978K
426 Main St # 8
3 bd · 2.5 ba · 2,150 ft²
$884K
426 Main St # 9
3 bd · 2.5 ba · 1,738 ft²
$741K
426 Main St # 10
3 bd · 2.5 ba · 1,852 ft²
$818K

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

About 426 Main St

How many units are in 426 Main St, Waltham, MA?

426 Main St, Waltham, MA has 10 residential units across built in 2006, according to county assessor records.

What is a unit at 426 Main St, Waltham, MA worth?

The median TopHap Estimate across the 10 units at 426 Main St, Waltham, MA is $890,808. That works out to $409 per square foot. Units run from 1,738 to 2,421 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 426 Main St, Waltham, MA expensive for Waltham?

Units at 426 Main St, Waltham, MA carry a median of $409 per square foot, 15% above the Waltham median of $355 per square foot.

How often do units sell at 426 Main St, Waltham, MA?

0 units at 426 Main St, Waltham, MA sold in the last 12 months, out of 25 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

Have units at 426 Main St, Waltham, MA appreciated?

Across 14 repeat sales of the same unit, 426 Main St, Waltham, MA returned a median 1.7% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 5.0 years.

What floor plans does 426 Main St, Waltham, MA have?

The most common plan at 426 Main St, Waltham, MA is a 3-bedroom of 2,410 square feet, repeated 2 times, with a median estimate of $974,843. TopHap identifies 2 recurring plans in the building.

More homes on Main St

Closest homes

More homes in Waltham 02452

Assigned schools

Explore the area

See this home in context

Open 426 Main 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