Middlesex County and Waltham City property record for 10 Hammer St, Waltham, MA 02453
| Property Type | Office Building |
|---|---|
| Details | 8 bd · 1.5 ba · 2,446 sqft · built 1900 |
| Lot Size | 0.092 acres (3,999 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $12,081 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 49021 |
| Primary APN | 49021 |
|---|---|
| Alternative APN |
|
| Bedrooms | 8 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 2,446 sqft Total Area |
| Gross Area | 3,734 sqft |
| Basement Area | 1,238 sqft |
| Unfinished Basement | 1,238 sqft |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Architectural Style | Duplex Single |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 3,999 sqft (0.092 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Account Number | 49021 |
|---|---|
| Street Address | 10 HAMMER ST |
| City | WALTHAM |
| State | MA |
| Zip | 02453-3511 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Office Building |
| Local Zoning Code | 1 |
| Legal Block | 29 |
| Legal Lot Number | 6 |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 368400 |
Source: Middlesex County and Waltham City records, as of October 20, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 10 HAMMER ST, WALTHAM, MA 02453-3511 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 29, 2013 |
| Deed Sale | Mar 29, 2013 |
| Deed Document Number | 20136 |
| Deed Book / Page | 61494 / 490 |
| Record Updated | Oct 29, 2026 |
Source: Middlesex County and Waltham City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Waltham City |
| Unified School District | Waltham School District (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $12,081.00 (+17.23%) | $544,700 (+11.21%) Land $181,300 Building $363,400 |
| 2025 | $10,305.00 (+13.55%) | $489,800 (+11.78%) Land $171,100 Building $318,700 |
| 2024 | $9,075.00 (+0.96%) | $438,200 (+7.01%) Land $155,200 Building $283,000 |
| 2023 | $8,989.00 | $409,500 Land $140,700 Building $268,800 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 5 (1988–2021) |
| Most Recent Claim | Aug 2021 · rainfall accumulation |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | WALTHAM WATER DEPARTMENT serves 65,218 people · EPA ID MA3308000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Jun 2024 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 280 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| Xfinity Cable | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| AT&T Fixed Wireless | 100 / 20 |
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