Middlesex County and Somerville City property record for 20 Assembly Square Dr, Somerville, MA 02145
| Property Type | General Industrial |
|---|---|
| Details | 8,748 sqft · built 1983 |
| Lot Size | 1.52 acres (66,489 sqft) |
| Owner | Company Name on Record |
| Last Sale | $540,000 (Aug 1999) |
| Tax Bill | $107,996 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 101-B-22 |
| Primary APN | 101-B-22 |
|---|---|
| Alternative APNs |
|
| Building Area | 8,748 sqft Garage |
|---|
| Year Built | Built 1983 |
|---|---|
| Effective Year Built | Effective 1983 |
| Lot Area | 66,489 sqft (1.52 acres) |
| Total Buildings | 4 Buildings |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | 23702095 |
|---|---|
| Street Address | 20 ASSEMBLY SQUARE DR |
| City | SOMERVILLE |
| State | MA |
| Zip | 02145-1307 |
| Property Category | Industrial |
| Property Type | Industrial > General Industrial |
| Local Zoning Code | BPA |
| Legal Block | B |
| Legal Lot Number | 22 |
| Jurisdiction | SOMERVILLE MA |
| Township / Civil Division | SOMERVILLE |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 350106 |
Source: Middlesex County and Somerville 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 | Company Name on Record |
|---|---|
| Mailing Address | 20 ASSEMBLY SQUARE DR, SOMERVILLE, MA 02145-1307 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 17, 1999 · Amount on Record |
| Deed Sale | Aug 17, 1999 · Amount on Record |
| Record Updated | Oct 29, 2026 |
Source: Middlesex County and Somerville City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Somerville City |
| Unified School District | Somerville School District (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $107,996.00 | $5,702,000 (+5.19%) Land $3,556,900 Building $2,145,100 |
| 2025 | $5,420,500 (-) Land $3,387,300 Building $2,033,200 | |
| 2024 | $5,420,500 (+2.21%) Land $3,387,300 Building $2,033,200 | |
| 2023 | $5,303,400 Land $3,387,300 Building $1,916,100 | |
| 2020 | $86,909.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
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 | SOMERVILLE WATER DEPT. (MWRA) serves 81,045 people · EPA ID MA3274000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Oct 2025 |
| Lead | 4 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line replacement currently in violation since Nov 2019 |
| 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 556 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| Verizon Fixed Wireless · Fiber in parts of the area | 1,000 / 75 |
| Netafy Fixed Wireless | 641 / 143 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Starry.
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