586 Pleasant St #U-1, Watertown — property record card
Parcel built in 1965 in Watertown, assessed at $5,646,900 for fiscal year 2026; last sold for $1,500,000 on January 2, 2025.
Rebuilt from the Watertown assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Watertown assessor’s office.
Parcel
| Location | 586 Pleasant St #U-1 |
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| Map and parcel ID | 810 9 9 810 9 9U1 |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $5,604,900 |
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| Land | $0 |
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| Other | $42,000 |
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| Total assessed | $5,646,900 |
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Building
| Year built | 1965 |
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| Style | CONDO-WHSE |
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| Living area | 3,529 ft² |
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| Units | 8 |
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Last recorded sale
| Price | $1,500,000 |
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| Date | January 2, 2025 |
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| Deed | Registry of Deeds book 83642, page 594 |
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8 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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| 586 Pleasant St #U-1 | 810 9 9U1 | | $814,800 | $2,085,000
July 31, 2017 |
| 586 Pleasant St #U-2 | 810 9 9U2 | | $760,900 | $650,000
September 7, 2018 |
| 586 Pleasant St #U-3 | 810 9 9U3 | | $760,900 | $1,500,000
January 2, 2025 |
| 586 Pleasant St #U-4 | 810 9 9U4 | | $760,400 | $1,400,000
March 29, 2024 |
| 586 Pleasant St #U-5 | 810 9 9U5 | | $760,400 | $600,000
September 4, 2018 |
| 586 Pleasant St #U-6 | 810 9 9U6 | | $760,400 | $800,000
November 19, 2019 |
| 586 Pleasant St #U-8 | 810 9 9U8 | | $518,100 | $2,085,000
July 31, 2017 |
| 586 Pleasant St U-7 | 810 9 9U7 | | $511,000 | $400,000
September 13, 2018 |
What MassDEP has recorded
- RTN 3-0028357 — No Location Aid, activity and use limitation, status RTNCLOSED, AUL recorded July 11, 2014 · MassDEP file
- RTN 3-0024108 — No Location Aid, activity and use limitation, status PSC, class PA, AUL recorded July 15, 2015 · MassDEP file
Within about 500 m (a third of a mile): 2 active tier-classified 21E sites and 11 sites with an Activity and Use Limitation. All MassDEP sites in Watertown.
What this means
- The last sale price is 73% below 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.
Point at the centre of the assessor parcel — not a survey.
Data: Watertown 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 586 Pleasant St #U-1
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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