87 Summer St #U-87, Watertown — property record card
Residential Condominium built in 2020 in Watertown, assessed at $6,214,400 for fiscal year 2026; last sold for $1,562,000 on May 16, 2025.
Parcel
| Location | 87 Summer St #U-87 |
|---|---|
| Map and parcel ID | 316 10 2 316 10 2U87 |
| Use | Residential Condominium |
| County | Middlesex |
Valuation — fiscal year 2026
| Building | $6,158,700 |
|---|---|
| Land | $0 |
| Other | $55,700 |
| Total assessed | $6,214,400 |
Building
| Year built | 2020 |
|---|---|
| Style | Townhouse |
| Living area | 3,045 ft² |
| Rooms | 9 |
| Units | 5 |
Last recorded sale
| Price | $1,562,000 |
|---|---|
| Date | May 16, 2025 |
| Deed | Registry of Deeds book 84101, page 186 |
5 assessor accounts on this parcel
| Address | Account | Use | Assessed | Last sale |
|---|---|---|---|---|
| 9 Pearl St #U-9 | 316 10 2U9 | Residential Condominium | $1,357,400 | $1,390,000 |
| 11 Pearl St U-11 | 316 10 2C | Residential Condominium | $980,100 | $725,000 |
| 13 Pearl St #U-13 | 316 10 2B | Residential Condominium | $948,600 | $910,000 |
| 85 Summer St #U-85 | 316 10 2U85 | Residential Condominium | $1,445,000 | $1,434,000 |
| 87 Summer St #U-87 | 316 10 2U87 | Residential Condominium | $1,483,300 | $1,562,000 |
What MassDEP has recorded
No tier-classified 21E site and no Activity and Use Limitation is mapped on this parcel.
Within about 500 m (a third of a mile): 0 active tier-classified 21E sites and 6 sites with an Activity and Use Limitation. All MassDEP sites in Watertown.
What this means
- Assessed 325% above the median residential condominium in Watertown ($1,461,700, 975 parcels).
- The last sale price is 75% below the current assessment. Massachusetts assessments aim at full market value as of January 1 of the year before the fiscal year.

The report for 87 Summer St #U-87
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)