Darien Town property record for 23 Prospect Ave, Darien, CT 06820
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,679 sqft · built 1855 |
| Lot Size | 0.33 acres (14,375 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $375,000 (Sep 1993) |
| Tax Bill | $16,781 (2025) |
| Deeds & Mortgages | Apr 2023 Refinance |
| Flood Zone | Zone X (minimal risk) |
| APN | DARI M:16 B:72 |
| Primary APN | DARI M:16 B:72 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,679 sqft Living Area |
| 1st Floor Area | 1,176 sqft |
| Game Room | Game Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1855 |
|---|---|
| Effective Year Built | Effective 1855 |
| Architectural Style | Colonial |
| Exterior Material | Wood Siding |
| Lot Area | 14,375 sqft (0.33 acres) |
| Parking Spaces | 1 Parking Space |
| Pool Type | In-Ground Pool |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Oil |
| Account Number | 4147 |
|---|---|
| Street Address | 23 PROSPECT AVE |
| City | DARIEN |
| State | CT |
| Zip | 06820-3512 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R13 |
| Legal Block | 72 |
| Jurisdiction | DARIEN CT |
| Township / Civil Division | DARIEN |
| Census Block Group | 2 |
| Census Block | 2010 |
| Census Tract | 30200 |
23 Prospect Ave is owned and occupied by two individuals who bought it in September 1993.
Source: Darien Town records, as of June 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 23 PROSPECT AVE, DARIEN, CT 06820-3512 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Sep 22, 1993 · Amount on File |
| Deed Sale | Sep 22, 1993 · Amount on File |
| Deed Book / Page | 713 / 278 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DARIEN CT |
| Property Address | 23 PROSPECT AVE, DARIEN, CT 06820-3512 |
| Transaction Type | Mortgage |
| Record Updated | May 4, 2023 |
| Name | Verified Name |
|---|
| Document Number | 001752-786 |
|---|---|
| Date | Apr 17, 2023 |
| Book Page | 1752/786 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2053 |
The 2025 property tax bill for 23 Prospect Ave was $16,781.
Source: Darien Town assessment roll, as of June 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision | Darien Town |
| Unified School District | Darien School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $16,781.00 | $1,084,020 Land $587,300 Building $496,720 | $758,814 Land $411,110 Building $347,704 |
| 2024 | $16,781.00 (+18.19%) | ||
| 2023 | $14,198.00 (+2.2%) | $806,260 (-) Land $419,510 Building $386,750 | |
| 2022 | $13,892.00 | $806,260 Land $419,510 Building $386,750 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 23 Prospect Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| 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 |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 23 Prospect Ave is low, with 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 80% of the US · above 55% of Connecticut |
|---|---|
| Wildfire Likelihood | 0.01% 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 | AQUARION-EASTERN FAIRFIELD COUNTY private · serves 351,756 people · EPA ID CT0150011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2025 |
| Lead | Under 1 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 24 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 242 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Frontier Fiber | 7,000 / 7,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
May also be available: T-Mobile.
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