8 Union St, Nantucket — property record card
Condo House built in 1890 in Nantucket, assessed at $4,120,400 for fiscal year 2026; last sold for $1,800,000 on September 23, 2025.
Parcel
| Location | 8 Union St, Nantucket MA 02554 |
|---|---|
| Map and parcel ID | 42.3.1 100 4231_100_2 |
| Use | Condo House |
| Zoning | CDT |
| County | Nantucket |
Valuation — fiscal year 2026
| Building | $4,120,400 |
|---|---|
| Land | $0 |
| Total assessed | $4,120,400 |
Building
| Year built | 1890 |
|---|---|
| Style | Condominium |
| Living area | 1,935 ft² |
| Units | 3 |
Last recorded sale
| Price | $1,800,000 |
|---|---|
| Date | September 23, 2025 |
| Deed | Registry of Deeds book 2028, page 121 |
3 assessor accounts on this parcel
| Address | Account | Use | Assessed | Last sale |
|---|---|---|---|---|
| 8 8R Union St | 4231_100_57 | Other, Open Space | $0 | |
| 8 Union St | 4231_100_2 | Condo House | $2,706,300 | |
| 8R Union St | 4231_100_1 | Condo House | $1,414,100 | $1,800,000 |
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): 2 active tier-classified 21E sites and 6 sites with an Activity and Use Limitation. All MassDEP sites in Nantucket.
What this means
- Assessed 55% above the median condo house in Nantucket ($2,659,950, 52 parcels).
- The last sale price is 56% below the current assessment. Massachusetts assessments aim at full market value as of January 1 of the year before the fiscal year.
- Built before 1978: the Massachusetts Lead Law applies when a child under six lives there; ask for any lead inspection or letter of compliance.

The report for 8 Union 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)