New Haven City property record for 436 Prospect St, New Haven, CT 06511
| Property Type | Apartment House (2-4 Units) |
|---|---|
| Details | 6 bd · 6 ba · 4,753 sqft · built 1900 |
| Lot Size | 0.385 acres (16,789 sqft) |
| Owner | Company Name on File |
| Last Sale | $600,000 (Jun 2009) |
| Tax Bill | $20,541 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 248 0394 00500 |
| Primary APN | 248 0394 00500 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 6 Baths |
| Total Rooms | 14 Rooms |
| Units | 8 Units |
| Stories | 3 Stories |
| Building Area | 4,753 sqft Living Area |
| Gross Area | 7,830 sqft |
| 1st Floor Area | 2,353 sqft |
| Basement Area | 2,321 sqft |
| Finished Basement | 2,321 sqft |
| Unfinished Basement | 2,321 sqft |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Architectural Style | Condo/Apartment |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 16,789 sqft (0.385 acres) |
| Heating System | Steam |
|---|---|
| Heating Fuel | Oil |
| Account Number | 248 0394 00500 |
|---|---|
| Street Address | 436 PROSPECT ST |
| City | NEW HAVEN |
| State | CT |
| Zip | 06511-2123 |
| Property Category | Commercial |
| Property Type | Residential > Multi-Unit > Apartment House (2-4 Units) |
| Local Zoning Code | RM2 |
| Legal Block | 394 |
| Legal Lot Number | 500 |
| Jurisdiction | NEW HAVEN CT |
| Township / Civil Division | NEW HAVEN |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 141800 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Prospect Hill Historic District listed 1979 · 238 contributing resources · NRIS 79002670 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
436 Prospect St, a residential property, is owned by a company that bought it in June 2009.
Source: New Haven City records, as of October 20, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 93 OLD QUARRY RD, GUILFORD, CT 06437-3711 |
| Owner Type | Company |
| Vesting | Company |
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 | Name on Deed |
|---|---|
| Last Sale | Jun 25, 2009 · Amount on File |
| Deed Sale | Jun 25, 2009 · Amount on File |
| Prior Sale | Jun 30, 2005 · Amount on File |
| Deed Book / Page | 8402 / 43 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 436 Prospect St was $20,541, up 1.4% from the year before.
Source: New Haven City assessment roll, as of September 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision / Municipality | New Haven City |
| Unified School District | New Haven School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $20,541.00 (+1.43%) | $514,010 (-) Land $258,930 Building $255,080 | |
| 2025 | $20,252.00 | $514,010 Land $258,930 Building $255,080 | $734,300 Land $369,900 Building $364,400 |
| 2024 | $20,252.00 (+5.91%) | ||
| 2023 | $19,121.00 (-6.42%) | $514,010 (-) Land $258,930 Building $255,080 | |
| 2022 | $20,432.00 | $514,010 Land $258,930 Building $255,080 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 436 Prospect St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective January 25, 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.
The area around 436 Prospect St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | REGIONAL WATER AUTHORITY serves 418,900 people · EPA ID CT0930011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2024 |
| 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 | 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 344 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| GoNetspeed Fiber | 2,000 / 2,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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