Middlesex County and Concord Town property record for 21 Old Mill Rd, Concord, MA 01742
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,914 sqft · built 1993 |
| Lot Size | 0.479 acres (20,871 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $360,000 (Jun 1993) |
| Tax Bill | $17,257 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | M:00011C B:02840-00006 |
| Primary APN | M:00011C B:02840-00006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,914 sqft Living Area |
| Gross Area | 5,640 sqft |
| Basement Area | 1,428 sqft |
| Unfinished Basement | 1,428 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1993 |
|---|---|
| Effective Year Built | Effective 1993 |
| Architectural Style | Colonial |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 20,871 sqft (0.479 acres) |
| Garage Type | Basement |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Oil |
| Account Number | 7256 |
|---|---|
| Street Address | 21 OLD MILL RD |
| City | CONCORD |
| State | MA |
| Zip | 01742-3923 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | B |
| Legal Block | 2840 |
| Legal Lot Number | 6 |
| Jurisdiction | CONCORD MA |
| Township / Civil Division | CONCORD |
| Census Block Group | 5 |
| Census Block | 5001 |
| Census Tract | 361200 |
21 Old Mill Rd is owner-occupied and held in a trust since April 2025.
Source: Middlesex County and Concord Town records, as of October 20, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 21 OLD MILL RD, CONCORD, MA 01742-3923 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 25, 1993 · Amount on File |
| Deed Sale | Jun 25, 1993 · Amount on File |
| Last Transfer Date | Apr 25, 2025 |
| Transfer Doc | 0084244-88 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 21 Old Mill Rd was $17,257, up 4.5% from the year before.
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 | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $17,257.00 (+4.5%) | $1,322,400 (+6.18%) Land $521,200 Building $801,200 | $1,450,387 (+24.75%) |
| 2025 | $16,514.00 (+0.99%) | $1,245,400 (-) Land $496,300 Building $749,100 | $1,162,610 |
| 2024 | $16,352.00 (+8.37%) | $1,245,400 (+6.97%) Land $496,300 Building $749,100 | |
| 2023 | $15,089.00 | $1,164,300 Land $451,200 Building $713,100 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21 Old Mill Rd in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 21 Old Mill Rd is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 96% of Massachusetts |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | 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 270 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
5G (outdoors only) and 4G LTE
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