Norfolk County and Brookline Town property record for 10 Sewall Ave, Brookline, MA 02446
| Property Type | Office Building |
|---|---|
| Details | 10 ba · 26,140 sqft · built 1930 |
| Lot Size | 0.234 acres (10,189 sqft) |
| Owner | Company Name on File |
| Tax Bill | $202,498 (2026) |
| Deeds & Mortgages | Apr 2019 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 6440009 |
| Primary APN | 6440009 |
|---|---|
| Alternative APN |
|
| Full Baths | 10 Baths |
|---|---|
| Half Baths | 20 Half Baths |
| Units | 16 Units |
| Stories | 3 Stories |
| Building Area | 26,140 sqft Total Area |
| Gross Area | 34,960 sqft |
| Basement Area | 8,720 sqft |
| Unfinished Basement | 5,842 sqft |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1985 |
| Exterior Material | Brick |
| Construction Type | Masonry / Concrete Block |
| Roof Type | Flat |
| Roof Material | Other |
| Lot Area | 10,189 sqft (0.234 acres) |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Account Number | 6440009 |
|---|---|
| Street Address | 10 SEWALL AVE |
| City | BROOKLINE |
| State | MA |
| Zip | 02446-5154 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Office Building |
| Local Zoning Code | G175 |
| Legal Block | 162 |
| Legal Lot Number | 2 |
| Jurisdiction | BROOKLINE MA |
| Township / Civil Division | BROOKLINE |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 400800 |
10 Sewall Ave, a commercial property, is owned by a company that acquired it in March 2019.
Source: Norfolk County and Brookline Town records, as of October 20, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 2 PARK PLZ, 405, BOSTON, MA 02116-3935 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Mar 13, 2019 |
| Transfer Doc | 36730-204 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BROOKLINE MA |
| Recording Date | Apr 17, 2019 |
| Property Address | 10 SEWALL AVE, BROOKLINE, MA 02446 |
| Document Number | 36730-204 |
| Book / Page | 036730 / 000204 |
| Instrument Date | Mar 13, 2019 |
| Instrument | 27770 |
| Transaction Type | Transfer |
| Record Updated | May 7, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 2 PARK PLZ BOSTON MA 021163932, BOSTON, MA 02116-3932 |
The 2026 property tax bill for 10 Sewall Ave was $202,498, up 5.9% from the year before.
Source: Norfolk County and Brookline Town assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Norfolk County |
| County Subdivision | Brookline Town |
| Unified School District | Brookline School District (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $202,498.00 (+5.88%) | $11,800,600 (+2.18%) Land $2,427,900 Building $9,353,000 |
| 2025 | $191,246.00 (+3.27%) | $11,548,700 (+2.34%) Land $2,380,300 Building $9,168,400 |
| 2024 | $185,188.00 (+2.22%) | $11,285,100 (+4.03%) Land $2,380,300 Building $8,904,800 |
| 2023 | $181,168.00 | $10,848,400 Land $3,173,600 Building $7,674,800 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10 Sewall Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1978.
Source: FEMA National Flood Hazard Layer, effective May 26, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1978) |
| Most Recent Claim | Feb 1978 · Coastal Storms, Flood, Ice & Snow |
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.
The area around 10 Sewall Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 | BROOKLINE WATER AND SEWER DIVISION serves 63,191 people · EPA ID MA3046000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Apr 2026 |
| Lead | 1 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 717 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| Verizon Fixed Wireless · Fiber in parts of the area | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Starry.
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