Dedham, MA

Norfolk County42.2489°N, 71.1756°W

Tracking 9,409 properties across Dedham, Massachusetts — a community where the median home dates to 1951 and the oldest to 1636. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.

9,409
Properties Tracked
1951
Median Year Built
$653K
Median Assessed Value
5%
FEMA Flood Zone
2.72M
NEP Data Facts Tracked
Zone 1
Radon Zone
Click any parcel to view intelligence

Dedham, MAInc. 1635

Dedham is an inner suburb south of Boston with deep historic roots — it served as the county seat of Norfolk County since the county's founding in 1793, and the Norfolk County courthouse and registry of deeds remain in Dedham center. The town's housing stock reflects its long settlement history: colonial-era homes near the center, Victorian-era development along the main roads, and post-war suburban neighborhoods in the western and southern sections.

Route 1 and the Providence Highway corridor bring significant commercial and retail development, including the Legacy Place shopping center. For property professionals, Dedham offers an accessible suburban market with more commercial property and housing variety than a typical bedroom community, plus the county government functions that bring institutional land use.

Risk Profile

FEMA flood zones, fire protection grades, radon — parcel by parcel

FEMA Flood Zones

455 properties (5%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.

X
8,954
AE
328
A
127

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
1,412
Grade B
4,770
Grade C
3,221
Grade D
6
Zone 1
Radon Risk
123 mph
Design Wind Speed
ASCE 7 standard
40 psf
Ground Snow Load
ASCE 7 standard
Relatively Low
FEMA Risk Index
NRI composite rating

The Property Landscape

9,409 properties · Median year built 1951 · Avg 2,529 sf

Property Types

Single Family
6,692
Institutional
736
Two-Family
701
Multi-Family
606
Commercial
275
Vacant Land
250
Industrial
57
Mixed Use
45
Residential Other
38
Other
5

Construction by Era

Pre-1800
51
1800-1849
179
1850-1899
625
1900-1949
3,085
1950-1979
3,347
1980-1999
730
2000+
631

Architectural Styles

Colonial
2,238
Cape Cod
1,234
Conventional
1,059
Condominium
907
Ranch
826
Raised Ranch
642
Multi-Family
593
Vacant Land
365

Market Activity

Recorded transactions from Norfolk County Registry of Deeds

93
Sales (12 mo)
Arms-length transactions
$750K
Median Sale Price
Past 12 months
75%
Owner-Occupied
1%
Out-of-State Owners

NE Provenance tracks recorded deeds, mortgages, and liens for 96% of Dedham 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

48,147 municipal building permits on file · 78% of properties

NE Provenance tracks 48,147 building permits across 7,344 Dedham properties — 78% coverage. 4,194 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.

48,147
Permits on File
78%
Coverage
Properties with permits
4,194
Active (5yr)
Recent permit activity
92%
Condition Rated
NEP assessment

Living in Dedham

Norfolk County · Massachusetts

Zip Codes0202102026020620209002136
25,364
Population
2020 Census
9,409
Properties
$653K
Median Assessed
75%
Owner-Occupied
10.7
Square Miles

Dedham covers 10.7 square miles in Norfolk County, Massachusetts. The median assessed property value is $653K.

Single-family homes account for 6,692 of Dedham's 9,409 properties and 1,307 multi-family buildings. There are 275 commercial properties and 250 parcels of vacant land. About 75% of properties are owner-occupied.

Assessed values range widely — the middle 50% of properties fall between $542K and $812K, with the highest assessed property at $152.9M. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.

Most of Dedham (95%) is on municipal sewer. Electric service is provided by TOWN OF BRAINTREE - (MA). 1,072 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Dedham its character.

Explore Dedham property intelligence.

9,409 Dedham properties — each with risk profiles, building data, permit history, and ownership analysis from 140+ sources. Open any property and see the full picture.

Federalist home in Newburyport, MA
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/dedham-ma. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.