Middlesex County and Cambridge City property record for 51 Brattle St, Cambridge, MA 02138 · Last verified April 2026
| Property Type | Public Works > Public School (Administration, Campus, Dorns, Instruction) |
|---|---|
| Year Built | Built 1925 |
| Square Footage | 43,932 sqft Total Area |
| Lot Size | 14,951 sqft (0.343 acres) |
| Last Sale | $5,200,000 (1986) |
| Primary APN | 169-14 |
|---|---|
| Alternative APN |
|
| Building Area | 43,932 sqft Total Area |
|---|---|
| 1st Floor | 6,276 sqft 1st Floor |
| Basement Area | 6,276 sqft Basement |
| Unfinished Basement | 6,276 sqft Unfinished |
| Stories | 6 Stories |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1925 |
| Exterior Material | Brick Exterior |
| Construction Type | Brick Construction |
| Roof Material | Roll Tar & Gravel Roof |
| Lot Area | 14,951 sqft (0.343 acres) |
| Cooling System | HVAC Cooling |
|---|---|
| Heating System | Central Heating |
| Street Address | 51 BRATTLE ST |
|---|---|
| City | CAMBRIDGE |
| State | MA |
| Zip | 02138-3701 |
| Property Usage | Land which may be one of the following: Public spaces (i.e. parks and beaches), public buildings (i.e. schools, hospitals, courthouse), public services (i.e. water treatment, electrical grid/product, dams) Property Usage |
| Type | Public Works > Public School (Administration, Campus, Dorns, Instruction) |
| Legal Lot Number | 14 |
| Jurisdiction | CAMBRIDGE MA |
| Minor Civil Division | CAMBRIDGE |
| Census Blockgroup | 1 |
| Census Block | 1006 |
| Census Tract | 354100 |
Source: Middlesex County and Cambridge City records · APN 169-14
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 | Company Name on File |
|---|---|
| Mailing Address | 1350 MASSACHUSETTS AVE, CAMBRIDGE, MA 02138-3846 |
| Owner Type | Owner is a Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Oct 01, 1986 · Amount on Record |
| Deed Sale | Oct 01, 1986 · Amount on Record |
| Record Refreshed | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CAMBRIDGE MA |
| Property Address | 51 BRATTLE ST, CAMBRIDGE, MA 02138-3701 |
| Transaction Type | Mortgage |
| Record Updated | Nov 25, 2025 |
| Name | Verified Name |
|---|
| Document Number | 0084432-40 |
|---|---|
| Date | Jul 31, 2025 |
| Book Page | 84432/40 |
| Instrument | 90358 |
| Name | CITIZENS BANK |
|---|---|
| Type | Bank |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | Assessed Value |
|---|---|
| 2025 | $31,897,900 (-9.08%) Land $12,536,400 Building $19,361,500 |
| 2024 | $35,084,600 Land $16,254,700 Building $18,829,900 |
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