Middlesex County and Watertown City property record for 40 Hersom St, Watertown, MA 02472 · Last verified July 2026
| Property Type | Condominium |
|---|---|
| Details | 3 bd · 3.5 ba · 2,169 sqft · built 1900 |
| Lot Size | 0.18 acres (7,841 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $452,500 (Nov 2010) |
| Tax Bill | $10,180 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 31700-18 |
| Primary APN | 31700-18 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 3 Stories |
| Building Area | 2,169 sqft Living Area |
| Gross Area | 2,946 sqft |
| Basement Area | 657 sqft |
| Unfinished Basement | 657 sqft |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Architectural Style | Other |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 7,841 sqft (0.18 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Oil |
| Account Number | 7967 |
|---|---|
| Street Address | 40 HERSOM ST |
| City | WATERTOWN |
| State | MA |
| Zip | 02472-1611 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Subdivision | 38-40 HERSOM STREET CONDO |
| Legal Block | 30 |
| Legal Lot Number | 338 |
| Jurisdiction | WATERTOWN MA |
| Township / Civil Division | WATERTOWN TOWN |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 370101 |
Source: Middlesex County and Watertown City records · APN 31700-18
Assessment roll updated April 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 40 HERSOM ST, WATERTOWN, MA 02472-1611 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 09, 2010 · Amount on Record |
| Deed Sale | Nov 09, 2010 · Amount on Record |
| Prior Sale | Jun 28, 2001 · Amount on Record |
| Deed Document Number | 2010204312 |
| Deed Book / Page | 55792 / 305 |
| Record Updated | Sep 20, 2026 |
Source: Middlesex County and Watertown City records · Assessment roll updated April 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Watertown City |
| Unified School District | Watertown School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $10,180.00 (+6.01%) | $871,600 (+6.19%) Building $871,600 | $879,320 (+7.47%) |
| 2024 | $9,603.00 (-10.59%) | $820,800 (+3.78%) Building $820,800 | $818,235 |
| 2023 | $10,740.00 | $790,900 Building $790,900 |
Source: FEMA National Flood Hazard Layer, Middlesex County (25017C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 250173701013, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (1978) |
| Most Recent Claim | Feb 1978, tidal / storm surge |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 926 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 2,000 |
| Radiate Holdings | Cable | 1,500 / 50 |
| Verizon | Fiber | 980 / 880 |
May also be available at this address: AT&T, T-Mobile USA, Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G (outdoors only) and 4G LTE
Search by:
By searching, you agree to: Terms • Privacy • Disclosures