Londonderry, NH
Rockingham County42.8651°N, 71.3740°W
Tracking 10,671 properties across Londonderry, New Hampshire — a community where the median home dates to 1983 and the oldest to 1728. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
10,671
Properties Tracked
1983
Median Year Built
$469K
Median Assessed Value
2%
FEMA Flood Zone
2.80M
NEP Data Facts Tracked
Zone 1
Radon Zone
Click any parcel to view intelligence
Londonderry, NHInc. 1722
Londonderry is one of the largest towns in New Hampshire, positioned along I-93 south of Manchester. The town's growth has been driven by the highway corridor and the Manchester-Boston Regional Airport, which sits partly in Londonderry. The housing stock is predominantly single-family homes from the post-war era through recent construction, with commercial development along the highway.
For property professionals, Londonderry is a large, accessible suburban market with airport noise considerations for some properties, significant commercial property, and a housing stock that is newer than many New England communities.
Risk Profile
FEMA flood zones, fire protection grades, radon — parcel by parcel
FEMA Flood Zones
175 properties (2%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
X
10,496
AE
156
A
19
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
45
Grade B
550
Grade C
2,931
Grade D
4,837
Grade E
2,308
Zone 1
Radon Risk
112 mph
Design Wind Speed
ASCE 7 standard
50 psf
Ground Snow Load
ASCE 7 standard
Very Low
FEMA Risk Index
NRI composite rating
The Property Landscape
10,671 properties · Median year built 1983 · Avg 3,018 sf
Property Types
Single Family
6,540
Condominium
2,601
Vacant Land
466
Other
451
Institutional
234
Commercial
164
Multi-Family
137
Mixed Use
27
Industrial
25
Residential Other
20
Construction by Era
Pre-1800
714
1800-1849
34
1850-1899
79
1900-1949
204
1950-1979
3,660
1980-1999
3,825
2000+
2,003
Architectural Styles
Colonial
3,323
Cape Cod
716
Ranch
651
Split Level
543
Split Entry
500
Mobile Home
407
Contemporary
223
Old Style
163
Living in Londonderry
Rockingham County · New Hampshire
Zip Codes030380305303103
25,826
Population
2020 Census
10,671
Properties
$469K
Median Assessed
75%
Owner-Occupied
42.0
Square Miles
Londonderry covers 42.0 square miles in Rockingham County, New Hampshire. The median assessed property value is $469K.
Single-family homes account for 6,540 of Londonderry's 10,671 properties, with 2,601 condominiums and 137 multi-family buildings. There are 164 commercial properties and 466 parcels of vacant land. About 75% of properties are owner-occupied, and 4% are owned by someone out of state.
Assessed values range widely — the middle 50% of properties fall between $303K and $582K, with the highest assessed property at $270.0M. 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 36% have public water service. Electric service is provided by PUBLIC SERVICE CO OF NH. 667 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Londonderry its character.
What Londonderry Property Intelligence Means for Professionals
Insurance & Underwriting
Londonderry's fire protection grade distribution (45 Grade A, 550 Grade B) directly affects premium calculation. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsReal Estate & Appraisal
Londonderry's 10 property types, spanning construction from 1728 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. 2% of Londonderry 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
Understanding a property's construction era, environmental exposure, and building characteristics before arriving on site transforms inspection from discovery to verification.
Inspection solutionsExplore Londonderry property intelligence.
10,671 Londonderry 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/londonderry-nh. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.