Suffolk County and Winthrop Town City property record for 18 Dolphin Ave, Winthrop, MA 02152
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 9 bd · 6 ba · 5,472 sqft · built 1900 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Trust Names on Record |
| Last Sale | $215,000 (Dec 1989) |
| Tax Bill | $13,903 (2026) |
| Flood Zone | Zone AE (high risk) |
| APN | WINT M:039 L:029 |
| Primary APN | WINT M:039 L:029 |
|---|
| Bedrooms | 9 Beds |
|---|---|
| Full Baths | 6 Baths |
| Units | 5 Units |
| Stories | 3 Stories |
| Building Area | 5,472 sqft Living Area |
| Gross Area | 7,356 sqft |
| Basement Area | 1,763 sqft |
| Unfinished Basement | 1,763 sqft |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Architectural Style | Other |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Flat |
| Roof Material | Other |
| Lot Area | 5,000 sqft (0.115 acres) |
| Heating System | Steam |
|---|---|
| Heating Fuel | Gas |
| Street Address | 18 DOLPHIN AVE |
|---|---|
| City | WINTHROP |
| State | MA |
| Zip | 02152-1278 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Legal Lot Number | 29 |
| Jurisdiction | WINTHROP MA |
| Township / Civil Division | WINTHROP TOWN |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 180500 |
Source: Suffolk County and Winthrop Town City records, as of October 20, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Trust Names on Record |
|---|---|
| Mailing Address | 8 BALDWIN PL, 2, BOSTON, MA 02113-1717 |
| Owner Type | Individual |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 15, 1989 · Amount on Record |
| Deed Sale | Dec 15, 1989 · Amount on Record |
| Record Updated | Oct 29, 2026 |
Source: Suffolk County and Winthrop Town City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Suffolk County |
| Municipality | Winthrop Town City |
| Unified School District | Winthrop School District (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $13,903.00 (+9.42%) | $1,248,000 (+1.36%) Land $353,900 Building $894,100 |
| 2025 | $12,706.00 (-8.25%) | $1,231,200 (-7.37%) Land $337,100 Building $894,100 |
| 2024 | $13,849.00 (+31.46%) | $1,329,100 (+34.99%) Land $324,000 Building $1,005,100 |
| 2023 | $10,535.00 | $984,600 Land $296,500 Building $688,100 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective January 21, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 11.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 107 individual policies |
| Nearby Flood Policies | 205 units insured incl. 98 condo units |
| Nearby Flood Claims | 166 (1978–2012) |
| Claims Outside the SFHA | 2 of 166 |
| Most Recent Claim | Dec 2012 · rainfall accumulation |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | WINTHROP WATER DIVISION, (MWRA) serves 19,316 people · EPA ID MA3346000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Dec 2023 |
| Lead | 8 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 441 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Netafy.
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