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CondominiumResidential

390 Great Rd

ACTON, MA 01720
14.49 ac
Lot SizeThe size of the land the home sits on, from county records.
1971
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
Built 197123 units490–920 ft²
$5.8M
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.
$271K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$312
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-15.7%vs the Acton ZIP median sale $/ft² ($370)

Sales Performance

$243K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
+27.9%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
2
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
8.7%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
19922001200420062015202120242026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
19922001200420062015202120242026

24 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.
$178K$218K$258K$298K490 ft²576 ft²662 ft²748 ft²834 ft²920 ft²
Studio1 bd2 bd
Studio
1 unit
1 bed
11 units
2 bed
11 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.
2 bd · 1.5 ba · 920 ft²
11 units
1 bd · 1.5 ba · 770 ft²
10 units
One-off layouts
2 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.

$178K–$182K
2 units
$200K–$200K
1 unit
$240K–$243K
7 units
$259K–$259K
1 unit
$271K–$278K
10 units
$296K–$298K
2 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.43%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.13%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.12.8 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.33%
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.35%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$259,673
Median tax billThe middle annual property tax bill among the building's units.$3,418
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 B16Mar 12, 2026$291,000Unit A2Dec 29, 2025$195,000Unit B16Oct 31, 2025$190,000Unit B23Apr 26, 2024$250,000Unit B13Jun 10, 2022$180,000Unit A7Apr 15, 2022$222,000Unit B24Mar 31, 2021$195,500Unit A11Sep 12, 2019$207,499Unit B14Dec 18, 2015$120,000Unit A5Jul 18, 2014$90,000

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

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.33 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
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
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.14.49
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Baseboard
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.

E
Luther Conant Elementary SchoolA+
Elementary · Grades KG–6 · 2.7 mi
H
Acton - Boxborough Regional High SchoolA+
High · Grades 9–12 · 2.9 mi
M
R. J. Grey Junior High SchoolA+
Middle · Grades 7–8 · 3.0 mi

District: Acton-Boxborough School District

Neighborhood · ZIP 01720These 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.71
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 100.72

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.24,473
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,210 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$148,952
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$187,397
Average tempThe average temperature here across a full year.48°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.

390 Great Rd # A1
2 bd · 1.5 ba · 920 ft²
$274K
390 Great Rd # A2
1 bd · 1.5 ba · 770 ft²
$200K
390 Great Rd # A4
1 bd · 1.5 ba · 490 ft²
$182K
390 Great Rd # A5
2 bd · 1.5 ba · 920 ft²
$271K
390 Great Rd # A6
1 bd · 1.5 ba · 770 ft²
$242K
390 Great Rd # A7
2 bd · 1.5 ba · 920 ft²
$274K
390 Great Rd # A8
1 bd · 1.5 ba · 770 ft²
$298K
390 Great Rd # A9
2 bd · 1.5 ba · 920 ft²
$278K
390 Great Rd # A10
1 bd · 1.5 ba · 770 ft²
$242K
390 Great Rd # A11
2 bd · 1.5 ba · 920 ft²
$275K
390 Great Rd # A12
1 bd · 1.5 ba · 770 ft²
$241K
390 Great Rd # B13
1 bd · 1.5 ba · 770 ft²
$243K
390 Great Rd # B14
2 bd · 1.5 ba · 920 ft²
$273K
390 Great Rd # B15
1.5 ba · 490 ft²
$178K
390 Great Rd # B16
2 bd · 1.5 ba · 920 ft²
$296K
390 Great Rd # B17
1 bd · 1.5 ba · 770 ft²
$242K
390 Great Rd # B18
2 bd · 1.5 ba · 920 ft²
$274K
390 Great Rd # B19
1 bd · 1.5 ba · 770 ft²
$241K
390 Great Rd # B20
2 bd · 1.5 ba · 920 ft²
$274K
390 Great Rd # B21
1 bd · 1.5 ba · 770 ft²
$240K
390 Great Rd # B22
2 bd · 1.5 ba · 920 ft²
$275K
390 Great Rd # B23
1 bd · 1.5 ba · 770 ft²
$259K
390 Great Rd # B24
2 bd · 1.5 ba · 920 ft²
$272K

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

About 390 Great Rd

How many units are in 390 Great Rd, Acton, MA?

390 Great Rd, Acton, MA has 23 residential units across built in 1971, according to county assessor records.

What is a unit at 390 Great Rd, Acton, MA worth?

The median TopHap Estimate across the 23 units at 390 Great Rd, Acton, MA is $271,140. That works out to $312 per square foot. Units run from 490 to 920 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 390 Great Rd, Acton, MA expensive for Acton?

Units at 390 Great Rd, Acton, MA carry a median of $312 per square foot, 16% below the Acton median of $370 per square foot.

How often do units sell at 390 Great Rd, Acton, MA?

2 units at 390 Great Rd, Acton, MA sold in the last 12 months, out of 24 recorded arms-length sales all time. That is a turnover rate of 8.7% of the building per year. The median sale over that period was $243K.

Have units at 390 Great Rd, Acton, MA appreciated?

Across 3 repeat sales of the same unit, 390 Great Rd, Acton, MA returned a median 1.5% 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 18.1 years.

What floor plans does 390 Great Rd, Acton, MA have?

The most common plan at 390 Great Rd, Acton, MA is a 2-bedroom of 920 square feet, repeated 11 times, with a median estimate of $274,451. TopHap identifies 2 recurring plans in the building.

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