80 Causeway St, Boston — property record card
(formerly 121A Corporations. Removed June 2009.) built in 2016 on 1.34 acres in Boston, assessed at $250,476,200 for fiscal year 2023; last transferred November 30, 2016 for a nominal sum.
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 | 80 Causeway St, Boston MA 02114 |
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| Map and parcel ID | 0301918035 0301918055 |
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| Use | (formerly 121A Corporations. Removed June 2009.) (use code 907) |
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| County | Suffolk |
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Valuation — fiscal year 2023
| Building | $186,231,100 |
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| Land | $64,245,100 |
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| Total assessed | $250,476,200 |
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Land
| Lot size | 1.34 acres (58,370 ft²) |
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Building
| Year built | 2016 |
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| Style | LUXURY APARTMENT |
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| Living area | 434,000 ft² |
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| Stories | 38 |
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| Units | 3 |
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Last recorded sale
| Price | nominal ($9) |
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| Date | November 30, 2016 |
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| Deed | Registry of Deeds book 33333, page 333 |
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3 assessor accounts on this parcel
Condominium units or several buildings share one parcel; each has its own assessment.
| Address | Account | Use | Assessed | Last sale |
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| 50 150 Causeway St | 0301918075 | (formerly 121A Corporations. Removed June 2009.) | $59,512,500 | nominal ($9) November 30, 2016 |
| 80 Causeway St | 0301918055 | (formerly 121A Corporations. Removed June 2009.) | $173,073,600 | $24,200,000 November 28, 2016 |
| 80 Causeway St | 0301918035 | (formerly 121A Corporations. Removed June 2009.) | $17,890,100 | nominal ($9) November 28, 2016 |
What MassDEP has recorded
- RTN 3-0019557 — Old Boston Garden Brownfill, activity and use limitation, status RAO, AUL recorded June 10, 2005 · MassDEP file
- RTN 3-0018960 — Old Boston Garden, activity and use limitation, status RAO, class PN, AUL recorded June 10, 2005 · MassDEP file
Within about 500 m (a third of a mile): 5 active tier-classified 21E sites and 6 sites with an Activity and Use Limitation. All MassDEP sites in Boston.
What this means
- The last deed was recorded for a nominal sum: a transfer between family members, into a trust or a similar non-market sale. It says nothing about the market value.
- 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 80 Causeway 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.
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