Middlesex County and Waltham City property record for 475 Trapelo Rd, Waltham, MA 02452 · Last verified April 2026
| Property Type | Government / Public Use |
|---|---|
| Details | built 1933 |
| Lot Size | 31.5 acres (1,372,867 sqft) |
| Owner | Company Name on File |
| Flood Zone | Zone X (minimal risk) |
| APN | 210437 |
| Primary APN | 210437 |
|---|---|
| Alternative APN |
|
| Stories | 3 Stories |
|---|
| Year Built | Built 1933 |
|---|---|
| Effective Year Built | Effective 1933 |
| Exterior Material | Brick |
| Construction Type | Concrete |
| Roof Type | Hip |
| Roof Material | Slate |
| Lot Area | 1,372,867 sqft (31.5 acres) |
| Heating System | Steam |
|---|---|
| Heating Fuel | Oil |
| Account Number | 210437 |
|---|---|
| Street Address | 475 TRAPELO RD |
| City | WALTHAM |
| State | MA |
| Zip | 02452-6320 |
| Property Category | Public Works |
| Property Type | Public Works > Government / Public Use |
| Legal Block | 1 |
| Legal Lot Number | 2E |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 369000 |
Source: Middlesex County and Waltham City records · APN 210437
Assessment roll updated April 14, 2026 · Last verified April 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 610 MAIN ST, WALTHAM, MA 02452-5580 |
| Owner Type | Company |
| Vesting | Government |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Jun 08, 2026 |
Source: Middlesex County and Waltham City records · Assessment roll updated April 14, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Waltham City |
| Unified School District | Waltham School District (PK - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Assessed Value |
|---|---|
| 2025 | $32,074,400 (+9.91%) Land $32,053,400 Building $21,000 |
| 2024 | $29,182,400 Land $29,161,400 Building $21,000 |
Source: FEMA National Flood Hazard Layer, Middlesex County (25017C), updated September 10, 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 |
| Wildfire Risk | Low above 4% of the US · above 8% of Massachusetts |
|---|---|
| Wildfire Likelihood | Less than 1 in 10,000 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Source: NPS National Register of Historic Places · August 1, 2026 release · Last verified October 2026
| Historic District | Within the Metropolitan State Hospital listed 1994 · 31 contributing resources · NRIS 93001482 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 327 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Verizon | Fiber | 2,300 / 2,300 |
| Xfinity | Cable | 2,000 / 2,000 |
| Radiate Holdings | Cable | 1,500 / 50 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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