Norfolk County and Dedham Town property record for 409 Mount Vernon St, Dedham, MA 02026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,544 sqft · built 1926 |
| Lot Size | 0.182 acres (7,914 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $865,000 (Apr 2024) |
| Tax Bill | $10,032 (2026) |
| Deeds & Mortgages | Apr 2024 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | DEDH M:0154 L:0055 |
| Primary APN | DEDH M:0154 L:0055 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,544 sqft Living Area |
| Gross Area | 3,307 sqft |
| 1st Floor Area | 824 sqft |
| Attic | Attic |
| Attic Area | 720 sqft |
| Basement Area | 824 sqft |
| Unfinished Basement | 194 sqft |
| Year Built | Built 1926 |
|---|---|
| Effective Year Built | Effective 1926 |
| Architectural Style | Colonial |
| Exterior Material | Brick |
| Roof Type | Gambrel |
| Roof Material | Asphalt |
| Lot Area | 7,914 sqft (0.182 acres) |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Street Address | 409 MOUNT VERNON ST |
|---|---|
| City | DEDHAM |
| State | MA |
| Zip | 02026-3631 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | B |
| Legal Lot Number | 55 |
| Jurisdiction | DEDHAM MA |
| Township / Civil Division | DEDHAM |
| Census Block Group | 5 |
| Census Block | 5010 |
| Census Tract | 402400 |
409 Mount Vernon St is owned and occupied by two individuals who bought it in April 2024.
Source: Norfolk County and Dedham Town records, as of October 20, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 409 MOUNT VERNON ST, DEDHAM, MA 02026-3631 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants by the Entirety |
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 | Apr 17, 2024 · Amount on File |
| Deed Sale | Apr 17, 2024 · Amount on File |
| Prior Sale | May 14, 1992 · Amount on File |
| Prior Transfer Date | Apr 4, 2024 |
| Prior Transfer Doc | 0001534821 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | DEDHAM MA |
| Recording Date | Apr 17, 2024 |
| Property Address | 409 MOUNT VERNON ST, DEDHAM, MA 02026-3631 |
| Document Number | 0001534821 |
| Instrument Date | Apr 4, 2024 |
| Instrument | 1534821 |
| Transaction Type | Transfer |
| Record Updated | May 3, 2024 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 409 MOUNT VERNON ST, DEDHAM, MA 02026-3631 |
| Document Number | 0001534822 |
|---|---|
| Date | Apr 17, 2024 |
| Instrument | 1534822 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | ARM |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2054 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.88% |
| Type Change Date | May 1, 2031 |
| Index | Other |
The 2026 property tax bill for 409 Mount Vernon St was $10,032, up 0.1% from the year before.
Source: Norfolk County and Dedham Town assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Norfolk County |
| County Subdivision | Dedham Town |
| Unified School District | Dedham School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $10,032.00 (+0.13%) | $815,600 (+2.73%) Land $388,800 Building $426,800 | $821,996 (+1.7%) |
| 2025 | $10,019.00 (+0.46%) | $793,900 (-0.49%) Land $360,100 Building $433,800 | $808,260 (+0.35%) |
| 2024 | $9,973.00 (+9.43%) | $797,800 (+12.4%) Land $331,400 Building $466,400 | $805,410 |
| 2023 | $9,114.00 | $709,800 Land $307,600 Building $402,200 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 409 Mount Vernon St in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1991.
Source: FEMA National Flood Hazard Layer, effective May 26, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 4 (1991–2025) |
| Claims Outside the SFHA | 3 of 4 |
| Most Recent Claim | May 2025 · rainfall accumulation |
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.
Wildfire risk around 409 Mount Vernon St 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 99.1% of the US · lower than 98.7% 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 | DEDHAM WESTWOOD WATER DIST. serves 41,630 people · EPA ID MA3073000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Apr 2025 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Oct 2021 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 648 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
| Netafy Fixed Wireless | 150 / 150 |
May also be available: T-Mobile.
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