Waltham, MA
Tracking 16,630 properties across Waltham, Massachusetts — a community where the median home dates to 1952 and the oldest to 1630. Every parcel mapped with building characteristics, environmental exposure, hazard risk, and ownership history assembled from 140+ sources.
Waltham, MAInc. 1634
Waltham is a city with deep industrial roots — the Waltham Watch Company pioneered the American system of interchangeable parts manufacturing here in the 1850s, and the city's identity as a center of innovation has continued through the 20th and 21st centuries. Today Waltham sits at the heart of the Route 128 technology corridor, with Brandeis University, Bentley University, and major corporate campuses contributing to a diverse economic base.
The housing stock reflects Waltham's complexity: dense multi-family neighborhoods near Moody Street and the downtown, established single-family areas in the south and west sides, and the commercial and institutional properties along Route 128 and the river. For property professionals, Waltham offers an unusually wide range of property types and values for a city its size — from modest multi-family buildings to high-end residential and significant commercial properties — all within a compact geography.
Risk Profile
FEMA flood zones, fire protection grades, radon — parcel by parcel
FEMA Flood Zones
345 properties (2%) are in FEMA Special Flood Hazard Areas, where flood insurance is required for federally-backed mortgages.
Fire Protection Grades
Fire protection grades reflect proximity to fire stations and hydrant infrastructure. Grade affects insurance pricing in every New England state.
The Property Landscape
16,630 properties · Median year built 1952 · Avg 4,419 sf
Property Types
Construction by Era
Architectural Styles
Market Activity
Recorded transactions from Middlesex County Registry of Deeds
NE Provenance tracks recorded deeds, mortgages, and liens for 99% of Waltham properties. Ownership intelligence includes transaction history, entity detection, portfolio identification, and lien analysis — assembled from public registry records into a single property-level profile.
Living in Waltham
Middlesex County · Massachusetts
Waltham covers 13.8 square miles in Middlesex County, Massachusetts. The median assessed property value is $753K.
Single-family homes account for 8,740 of Waltham's 16,630 properties, with 5,034 condominiums and 1,001 multi-family buildings. There are 733 commercial properties and 233 parcels of vacant land. About 61% 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 $624K and $926K, with the highest assessed property at $307.4M. For professionals working in this market, the value spread tells you a lot about what you'll encounter door to door.
Most of Waltham (99%) is on municipal sewer. Electric service is provided by NSTAR ELECTRIC COMPANY. 2,133 properties have identified commercial activity — restaurants, retail, professional offices, and services that give Waltham its character.
Environmental note: Waltham has an average EPA lead paint indicator at the 51th percentile nationally, consistent with 1,116 properties built before 1900 when lead paint was standard. 5,451 properties exceed at least one EPA environmental justice threshold — a factor in lending compliance and environmental due diligence.
What Waltham Property Intelligence Means for Professionals
Insurance & Underwriting
Waltham's fire protection grade distribution (4,144 Grade A, 11,135 Grade B) directly affects premium calculation. Parcel-level hazard data provides the granularity that ZIP-level aggregation misses.
Insurance solutionsReal Estate & Appraisal
Waltham's 10 property types, spanning construction from 1630 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 Waltham 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 Waltham property intelligence.
16,630 Waltham 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/waltham-ma. For references or attribution, please link back to this page or neprovenance.com. Thank you, we appreciate it.