
Tracking 9,407 properties across Acton, Massachusetts — a community where the median home dates to 1972 and the oldest to 1700. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
Acton is a suburban town northwest of Boston where colonial history and modern technology corridors intersect. The town center retains its New England character, but much of Acton's growth came in the post-war decades as Route 2 made it a commuter-accessible alternative to the closer-in suburbs. The housing stock is predominantly single-family, with construction concentrated in the 1960s-80s expansion era, though the town has pockets of pre-Revolutionary homes near the center and newer development on its western edges.
Acton's position along the Route 2 corridor puts it adjacent to the technology and biotech employment centers that drive demand in this part of Middlesex County. The town has good schools, conservation land along the Assabet River, and assessed values that reflect its position in the middle-to-upper tier of the western suburbs. For property professionals, Acton is a relatively consistent market — single-family dominant, moderate lot sizes, and less of the extreme variation found in the more urban Middlesex communities.
FEMA flood zones, fire protection grades, radon — parcel by parcel
523 properties (6%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
Fire protection grades reflect proximity to fire stations and hydrant infrastructure. Grade affects insurance pricing in every New England state.
9,407 properties · Median year built 1972 · Avg 2,417 sf
Recorded transactions from Middlesex County Registry of Deeds
NE Provenance tracks recorded deeds, mortgages, and liens for 99% of Acton properties. Ownership intelligence includes transaction history, entity detection, portfolio identification, and lien analysis — assembled from public registry records into a single property-level profile.
67,922 municipal building permits on file · 68% of properties
NE Provenance tracks 67,922 building permits across 6,360 Acton properties — 68% coverage. 5,851 properties have permit activity in the last five years.
Each permit record reveals maintenance decisions: roof replacements, electrical upgrades, kitchen renovations, solar installations. For insurance, lending, and appraisal professionals, permit history is the most objective evidence of property condition available from public records.
Middlesex County · Massachusetts
Acton covers 20.3 square miles in Middlesex County, Massachusetts. The median assessed property value is $705K.
Single-family homes account for 5,052 of Acton's 9,407 properties and 2,827 multi-family buildings. There are 342 commercial properties and 355 parcels of vacant land. About 68% of properties are owner-occupied, and 2% are owned by someone out of state.
Assessed values range widely — the middle 50% of properties fall between $369K and $920K, with the highest assessed property at $86.0M. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.
Most properties rely on private septic systems, and 89% have public water service. Electric service is provided by NSTAR ELECTRIC COMPANY. 1,081 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Acton its character.
Acton's fire protection grade distribution (242 Grade A, 2,488 Grade B) directly affects premium calculation. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsActon's 10 property types, spanning construction from 1700 to present, require local market knowledge for accurate comparable selection and valuation. NEP assembles building characteristics, environmental exposure, and condition signals into a single property profile.
Real estate solutionsCollateral assessment requires flood zone verification, environmental screening, and ownership chain validation. 6% of Acton properties are in SFHAs where flood insurance is a federal lending requirement. NEP provides property-level compliance data from public records.
Lending solutions67,922 permits across 68% of properties means most Acton inspection assignments can start with documented renovation and system history, not a blank slate.
Inspection solutions9,407 Acton properties — each with risk profiles, building data, permit history, and ownership analysis from 140+ sources. Open any property and see the full picture.

Source: NE Provenance, “Professional Property Intelligence for New England,” neprovenance.com/insights/town/acton-ma. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.