33 Sun St, Waltham — property record card
General Office Buildings built in 1960 on 0.75 acres in Waltham, assessed at $673,400 for fiscal year 2026; last sold for $2,350,000 on September 2, 2025.
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 | 33 Sun St |
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| Map and parcel ID | R068 008 0004 |
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| Use | General Office Buildings (use code 340) |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $258,400 |
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| Land | $403,400 |
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| Other | $11,600 |
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| Total assessed | $673,400 |
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Land
| Lot size | 0.75 acres (32,670 ft²) |
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Building
| Year built | 1960 |
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| Style | OFFICE |
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| Living area | 4,000 ft² |
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| Stories | 1 |
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Last recorded sale
| Price | $2,350,000 |
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| Date | September 2, 2025 |
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| Deed | Registry of Deeds book 1632, page 132 |
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What MassDEP has recorded
- RTN 3-0018416 — No Location Aid, tier classified (active), status TIER1D · MassDEP file
- RTN 3-0018417 — No Location Aid, tier classified (active), status TIER1D · MassDEP file
- RTN 3-0017840 — No Location Aid, activity and use limitation, status RAO, class B2, AUL recorded January 18, 2000 · MassDEP file
- RTN 3-0018416 — No Location Aid, activity and use limitation, status TIER1D, AUL recorded June 15, 1999 · MassDEP file
- RTN 3-0018417 — No Location Aid, activity and use limitation, status TIER1D, AUL recorded June 15, 1999 · MassDEP file
Within about 500 m (a third of a mile): 4 active tier-classified 21E sites and 7 sites with an Activity and Use Limitation. All MassDEP sites in Waltham.
What this means
- The last sale price is 249% above the current assessment. Massachusetts assessments aim at full market value as of January 1 of the year before the fiscal year.
- 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.
- A tier-classified site is a release still being cleaned up under the Massachusetts Contingency Plan; the MassDEP file shows the stage reached.
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 33 Sun St
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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