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Single Family ResidenceResidential
$552,687$320 / 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 Oct 21, 2026
Last sold for $440,000 on Apr 14, 2022

173 SOUTH RD

ASHBY, MA 01431
4
Beds
2.5
Baths
1,728 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.
1.15 ac
Lot SizeThe size of the land the home sits on, from county records.
2021
Year BuiltThe year the home was originally built, according to county records.
2
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.

Valuation

$553K
$519K low$586K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$440,000 · Apr 14, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,782 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$430,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$64,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$365,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$434,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$510,750

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.41
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
55
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
94
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.minimal

Scores 0–100; higher = greater projected risk.

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.Colonial
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.1.15
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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
Ashby Elementary SchoolB-
Elementary · Grades KG–4 · 0.4 mi
M
Hawthorne Brook Middle SchoolC
Middle · Grades 5–8 · 6.1 mi
H
North Middlesex Regional High SchoolB
High · Grades 9–12 · 8.3 mi

District: North Middlesex School District

Neighborhood · ZIP 01431These 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.92
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.74

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.9%
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.3,266
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.136 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$108,151
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,531
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.49 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

173 South Rd 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 79% of homes in Middlesex County
  • Costs less per square foot than 87% of homes in Middlesex County
  • Has a bigger lot than 82% of homes in Middlesex County
  • Among the newest homes in Ashby 01431

What homes are worth in Ashby 01431

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

This home
$192K$824K

This home is worth more than 74% of homes in Ashby 01431.

How it measures up in Ashby 01431

The dot is this home. The mark in the middle is the typical home in Ashby 01431.

Estimated value$552,687
CheaperTypical $454,387Pricier

Pricier than 74% of homes nearby

Price per ft²$320
CheaperTypical $260Pricier

Pricier than 82% of homes nearby

Living area1,728 ft²
SmallerTypical 1,750 ft²Bigger

Bigger than 48% of homes nearby

Lot size1.15 ac
SmallerTypical 2.1 acBigger

Bigger than 24% of homes nearby

Year built2021
OlderTypical 1972Newer

Newer than almost all homes nearby

How 173 South Rd ranks against every home in each area.
MeasureThis homeAshby 01431Middlesex County
Estimated valuepricier than$552,68774% of homes21% of homes
Price per ft²pricier than$32082% of homes13% of homes
Living areabigger than1,728 ft²48% of homes45% of homes
Lot sizebigger than1.15 ac24% of homes82% of homes
Year builtnewer than2021almost all homesalmost all homes

About 173 South Rd

How much is 173 South Rd, Ashby, MA worth?

The TopHap Estimate for 173 South Rd, Ashby, MA is $552,687 as of Oct 21, 2026. The likely range is $518,882 to $586,492. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 173 South Rd, Ashby, MA last sell?

173 South Rd, Ashby, MA last sold on Apr 14, 2022 for $440,000, according to the county's recorded deed.

How big is 173 South Rd, Ashby, MA?

173 South Rd, Ashby, MA has 4 bedrooms, 2.5 bathrooms, 1,728 square feet of living space and a 1.15-acre lot.

When was 173 South Rd, Ashby, MA built?

173 South Rd, Ashby, MA was built in 2021, making it 5 years old. It is a colonial home. The building has 2 stories.

What schools serve 173 South Rd, Ashby, MA?

173 South Rd, Ashby, MA is assigned to Ashby Elementary School (elementary), rated B-; Hawthorne Brook Middle School (middle), rated C; North Middlesex Regional High School (high), rated B. All sit in North Middlesex School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 173 South Rd, Ashby, MA compare to other homes in Ashby 01431?

Among the 1,215 homes in Ashby 01431, it is worth more than 74% of them ($552,687 against a typical $454,387), its price per square foot is higher than 82% of them ($320 against a typical $260), it is bigger than 48% of them (1,728 ft² against a typical 1,750 ft²), its lot is bigger than 24% of them (1.15 ac against a typical 2.1 ac) and it is newer than almost all of them (2021 against a typical 1972). Measured against all of Middlesex County, it is worth more than 21% 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 173 South Rd, Ashby, MA?

The 2026 property tax bill for 173 South Rd, Ashby, MA was $6,782. The county assessed it at $430,300.

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