26 30 West St, Boston — property record card
OFFICE 3-9 STORY built in 1910 on 0.22 acres in Boston, assessed at $14,089,600 for fiscal year 2023; last sold for $21,800,000 on February 1, 2017.
Rebuilt from the Boston assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Boston assessor’s office.
Parcel
| Location | 26 30 West St, Boston MA 02111 |
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| Map and parcel ID | 0304840000 |
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| Use | OFFICE 3-9 STORY (use code 344) |
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| County | Suffolk |
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Valuation — fiscal year 2023
| Building | $10,124,700 |
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| Land | $3,964,900 |
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| Total assessed | $14,089,600 |
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Land
| Lot size | 0.22 acres (9,583 ft²) |
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Building
| Year built | 1910 |
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| Style | OFFICE 3-9 STORY |
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| Living area | 50,670 ft² |
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| Stories | 6 |
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Last recorded sale
| Price | $21,800,000 |
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| Date | February 1, 2017 |
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| Deed | Registry of Deeds book 57514, page 037 |
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What MassDEP has recorded
- RTN 3-0026665 — Corner Mason St And Mason St Place, activity and use limitation, status RAO, class A3, AUL recorded October 6, 2009 · MassDEP file
Within about 500 m (a third of a mile): 1 active tier-classified 21E site and 5 sites with an Activity and Use Limitation. All MassDEP sites in Boston.
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: Boston assessor file for fiscal year 2023, via MassGIS, retrieved October 30, 2026; MassDEP sites retrieved the same day. Sources and freshness. No owner names are published.

The report for 26 30 West 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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