Middlesex County and Cambridge City property record for 15 Langdon St, Cambridge, MA 02138
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 5.5 ba · 3,514 sqft · built 1890 |
| Lot Size | 0.068 acres (2,941 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $2,050,000 (Jan 2015) |
| Tax Bill | $24,112 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 173-34 |
| Primary APN | 173-34 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 5.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 12 Rooms |
| Units | 2 Units |
| Stories | 3 Stories |
| Building Area | 3,514 sqft Living Area |
| Gross Area | 4,901 sqft |
| 1st Floor Area | 1,347 sqft |
| Basement Area | 1,347 sqft |
| Unfinished Basement | 1,347 sqft |
| Central Vacuum | Central Vacuum |
| Year Built | Built 1890 |
|---|---|
| Effective Year Built | Effective 1890 |
| Architectural Style | Other |
| Exterior Material | Wood Siding |
| Construction Type | Brick |
| Roof Type | Mansard |
| Roof Material | Slate |
| Lot Area | 2,941 sqft (0.068 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Street Address | 15 LANGDON ST |
|---|---|
| City | CAMBRIDGE |
| State | MA |
| Zip | 02138-2504 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | B |
| Legal Lot Number | 34 |
| Jurisdiction | CAMBRIDGE MA |
| Township / Civil Division | CAMBRIDGE |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 354000 |
Source: Middlesex County and Cambridge City records · APN 173-34
Assessment roll updated April 14, 2026 · Last verified April 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 300 INDEPENDENCE DR, CHESTNUT HILL, MA 02467-3668 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jan 09, 2015 · Amount on Record |
| Deed Sale | Jan 09, 2015 · Amount on Record |
| Deed Document Number | 20153876 |
| Deed Book / Page | 64777 / 102 |
| Record Updated | Jun 08, 2026 |
Source: Middlesex County and Cambridge City records · Assessment roll updated April 14, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Cambridge City |
| Unified School District | Cambridge School District (PK - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $24,112.00 (+9.43%) | $3,797,100 (+2.02%) Land $1,076,700 Building $2,720,400 |
| 2024 | $22,034.00 | $3,722,000 Land $1,137,800 Building $2,584,200 |
Source: FEMA National Flood Hazard Layer as of September 10, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Radiate Holdings, Starry.
Based on FCC filings for 782 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CAMBRIDGE WATER DEPARTMENT serves 118,214 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2023 |
| Lead | 8 ppb (2021–2023) 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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