Middlesex County and Concord Town property record for 305 Walden St, Concord, MA 01742
| Property Type | State Owned (Exempt) |
|---|---|
| Details | 1 bd · 9 ba · 25,378 sqft · built 1972 |
| Lot Size | 8.79 acres (383,253 sqft) |
| Owner | Company Name on Record |
| Deeds & Mortgages | Feb 2023 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | CONC M:10H B:248 |
| Primary APN | CONC M:10H B:248 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 9 Baths |
| Stories | 1 Story |
| Building Area | 25,378 sqft Total Area |
| Gross Area | 26,560 sqft |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1979 |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Roof Type | Flat |
| Roof Material | Tar & Gravel |
| Lot Area | 383,253 sqft (8.79 acres) |
| Garage Type | Basement |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Account Number | 4312 |
|---|---|
| Street Address | 305 WALDEN ST |
| City | CONCORD |
| State | MA |
| Zip | 01742-3616 |
| Property Category | Public Works |
| Property Type | Public Works > State Owned (Exempt) |
| Local Zoning Code | A |
| Legal Block | 248 |
| Jurisdiction | CONCORD MA |
| Township / Civil Division | CONCORD |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 361300 |
Source: Middlesex County and Concord Town records, as of April 14, 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 Record |
|---|---|
| Mailing Address | 100 CAMBRIDGE ST, BOSTON, MA 02114-2509 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jan 26, 2023 |
| Transfer Doc | 081215-129 |
| Record Updated | Jun 8, 2026 |
| Document Type | Condominium Deed |
|---|---|
| Jurisdiction | CAMBRIDGE MA |
| Recording Date | Feb 1, 2023 |
| Property Address | 305 WALDEN ST, CONCORD, MA 01742-3616 |
| Document Number | 081215-129 |
| Book / Page | 81215 / 129 |
| Instrument Date | Jan 26, 2023 |
| Instrument | 11433 |
| Transaction Type | Transfer |
| Record Updated | Feb 17, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 305 WALDEN ST # 1, 1, CAMBRIDGE, MA 02138-1343 |
Source: Middlesex County and Concord Town assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| County Subdivision | Concord Town |
| Elementary School District | Concord School District (PK - 08) |
| Secondary School District | Concord-Carlisle School District (09 - 12) |
| Year | Assessed Value |
|---|---|
| 2025 | $4,517,800 (+5.96%) Land $917,500 Building $3,600,300 |
| 2024 | $4,263,700 (+6.2%) Land $856,400 Building $3,407,300 |
| 2023 | $4,014,800 Land $839,100 Building $3,175,700 |
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 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 13 policies |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 11 (1984–2012) |
| Claims Outside the SFHA | 4 of 11 |
| Most Recent Claim | Oct 2012 · Hurricane Sandy |
| 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 | Low lower than 80% of the US · above 57% of Massachusetts |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation |
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 | CONCORD WATER DEPT serves 18,788 people · EPA ID MA3067000 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2024 |
| Lead | 5 ppb (2024–2026) action level 15 ppb |
| Water Quality | Bromate resolved · Jul 2022 |
|---|---|
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 41 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Concord Light Broadband Fiber | 1,000 / 1,000 |
5G (outdoors only) and 4G LTE
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