Marlborough, MA
Middlesex County42.3469°N, 71.5525°W
Tracking 12,846 properties across Marlborough, Massachusetts — a community where the median home dates to 1968 and the oldest to 1650. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
12,846
Properties Tracked
1968
Median Year Built
$499K
Median Assessed Value
1%
FEMA Flood Zone
3.64M
NEP Data Facts Tracked
Zone 1
Radon Zone
Click any parcel to view intelligence
Marlborough, MAInc. 1657
Marlborough is a city in the MetroWest region that has evolved from a shoe-manufacturing center to a technology and commercial hub along the I-495 corridor. The city's compact downtown retains its industrial-era character, while the commercial parks along Route 20 and I-495 host technology companies, corporate offices, and the commercial development that drives much of the city's tax base.
The housing stock mixes the dense, older neighborhoods near downtown — multi-family buildings, Victorian singles, and worker housing from the manufacturing era — with post-war suburban development in the northern and western sections and newer construction near the highway corridors. For property professionals, Marlborough offers a diverse market with more housing variety and commercial property than the surrounding suburban towns, and assessed values that span a wider range than is typical for the MetroWest region.
Risk Profile
FEMA flood zones, fire protection grades, radon — parcel by parcel
FEMA Flood Zones
109 properties (1%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
X
12,737
AE
69
A
40
Fire Protection Grades
Fire protection grades reflect proximity to fire stations and hydrant infrastructure. Grade affects insurance pricing in every New England state.
Grade A
22
Grade B
4,290
Grade C
7,930
Grade D
401
Grade E
203
Zone 1
Radon Risk
123 mph
Design Wind Speed
ASCE 7 standard
50 psf
Ground Snow Load
ASCE 7 standard
Relatively Low
FEMA Risk Index
NRI composite rating
The Property Landscape
12,846 properties · Median year built 1968 · Avg 3,268 sf
Property Types
Single Family
7,096
Two-Family
2,530
Multi-Family
1,163
Institutional
661
Commercial
517
Vacant Land
408
Industrial
260
Other
106
Mixed Use
77
Residential Other
19
Construction by Era
Pre-1800
35
1800-1849
89
1850-1899
1,153
1900-1949
1,550
1950-1979
4,385
1980-1999
3,439
2000+
1,014
Architectural Styles
Condominium
2,766
Colonial
2,371
Ranch
1,533
Conventional
1,134
Multi-Family
975
Cape Cod
927
Raised Ranch
770
Vacant Land
573
Market Activity
Recorded transactions from Middlesex County Registry of Deeds
64%
Owner-Occupied
2%
Out-of-State Owners
NE Provenance tracks recorded deeds, mortgages, and liens for 96% of Marlborough properties. Ownership intelligence includes transaction history, entity detection, portfolio identification, and lien analysis — assembled from public registry records into a single property-level profile.
Building Permits & Maintenance
104,223 municipal building permits on file · 67% of properties
NE Provenance tracks 104,223 building permits across 8,629 Marlborough properties — 67% coverage. 6,350 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.
104,223
Permits on File
67%
Coverage
Properties with permits
6,350
Active (5yr)
Recent permit activity
91%
Condition Rated
NEP assessment
Living in Marlborough
Middlesex County · Massachusetts
Zip Codes01752
41,793
Population
2020 Census
12,846
Properties
$499K
Median Assessed
64%
Owner-Occupied
22.1
Square Miles
Marlborough covers 22.1 square miles in Middlesex County, Massachusetts. The median assessed property value is $499K.
Single-family homes account for 7,096 of Marlborough's 12,846 properties and 3,693 multi-family buildings. There are 517 commercial properties and 408 parcels of vacant land. About 64% 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 $383K and $649K, with the highest assessed property at $154.0M. 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. Electric service is provided by MASSACHUSETTS BAY TRANS AUTHORITY. 1,714 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Marlborough its character. 273 properties have swimming pools.
What Marlborough Property Intelligence Means for Professionals
Insurance & Underwriting
Marlborough's fire protection grade distribution (22 Grade A, 4,290 Grade B) directly affects premium calculation. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsReal Estate & Appraisal
Marlborough's 10 property types, spanning construction from 1650 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 solutionsLending & Title
Collateral assessment requires flood zone verification, environmental screening, and ownership chain validation. 1% of Marlborough properties are in SFHAs where flood insurance is a federal lending requirement. NEP provides property-level compliance data from public records.
Lending solutionsInspection & Property Services
104,223 permits across 67% of properties means most Marlborough inspection assignments can start with documented renovation and system history, not a blank slate.
Inspection solutionsExplore Marlborough property intelligence.
12,846 Marlborough properties — each with risk profiles, building data, permit history, and ownership analysis from 140+ sources. Open any property and see the full picture.
Newburyport, MA · Federalist · 3,524 sq ft · 4 bed / 3 bath · Built 1800 · Historic District
NEP Property Intelligence Summary
ConditionC1Fire ClassBFlood ZoneXOwnerIndividualOccupancyOwner-Occupied
Purchased2018 (8yr)Permits11 totalSystems3 updatedLiensClearAssessed$1.6MOcean0.3 mi
EraPre-1940HistoricDesignatedRenovationRecentRadonZone 1
Cite this data
Source: NE Provenance, “Professional Property Intelligence for New England,” neprovenance.com/insights/town/marlborough-ma. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.