421 Mass Av, Acton — property record card
Bottled Gas and Propane Gas Tanks built in 1993 on 0.58 acres in Acton, assessed at $786,600 for fiscal year 2026; last sold for $925,000 on December 24, 2007.
Rebuilt from the Acton assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Acton assessor’s office.
Parcel
| Location | 421 Mass Av, Acton MA 00000 |
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| Map and parcel ID | F3-105 F3_105 |
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| Use | Bottled Gas and Propane Gas Tanks (use code 3110) |
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| Zoning | KC |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $158,400 |
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| Land | $564,000 |
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| Other | $64,200 |
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| Total assessed | $786,600 |
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Land
| Lot size | 0.58 acres (25,369 ft²) |
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Building
| Year built | 1993 |
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| Style | Store |
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| Living area | 1,272 ft² |
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| Stories | 1 |
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Last recorded sale
| Price | $925,000 |
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| Date | December 24, 2007 |
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| Deed | Registry of Deeds book 50508, page 0351 |
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What MassDEP has recorded
- RTN 2-0016945 — Sunoco Station, tier classified (active), status TIER1D · MassDEP file
- RTN 2-0000745 — Sunrise Sunoco, activity and use limitation, status RAO, class A2, AUL recorded October 28, 1999 · MassDEP file
Within about 500 m (a third of a mile): 1 active tier-classified 21E site and 2 sites with an Activity and Use Limitation. All MassDEP sites in Acton.
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.
- 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: Acton 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 421 Mass Av
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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