475 Trapelo Rd, Waltham — property record card
(formerly Commonwealth of Massachusetts. Removed June 2009.) built in 1952 on 162.00 acres in Waltham, assessed at $130,707,900 for fiscal year 2026.
Rebuilt from the Waltham assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Waltham assessor’s office.
Parcel
| Location | 475 Trapelo Rd |
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| Map and parcel ID | R036 001 0002 |
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| Use | (formerly Commonwealth of Massachusetts. Removed June 2009.) (use code 901) |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $34,300 |
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| Land | $130,673,600 |
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| Total assessed | $130,707,900 |
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Land
| Lot size | 162.00 acres (7,056,720 ft²) |
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Building
| Year built | 1952 |
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| Style | DORMITORY |
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| Stories | 3 |
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What MassDEP has recorded
- RTN 3-0002787 — Metropolitan State Hospital, activity and use limitation, status RAO, class A3, AUL recorded January 10, 2005 · MassDEP file
What this means
- An Activity and Use Limitation is a deed restriction: it limits how the land may be used (often no residential use or no digging) and passes to every buyer.
Point at the centre of the assessor parcel — not a survey.
Data: Waltham assessor file for fiscal year 2026, via MassGIS, retrieved October 30, 2026; MassDEP sites retrieved the same day. Sources and freshness. No owner names are published.

The report for 475 Trapelo Rd
This page shows the assessor record and the MassDEP sites on the parcel. The report adds what lies around it: FEMA flood zone, wetlands, Zone II and other water supply protection areas, priority habitat, sewer or septic service, protected open space, and every 21E site within half a mile.
$19card · PDF within 24 h · you pay after receiving itSee the sample (PDF)
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