New Haven City property record for 104 William St, New Haven, CT 06511
| Details | 4 bd · 4 ba · 3,594 sqft · built 1880 |
|---|---|
| Lot Size | 0.1 acres (4,356 sqft) |
| Owner | Company Name on File |
| Last Sale | $508,712 (May 2011) |
| Tax Bill | $18,787 (2026) |
| Deeds & Mortgages | Feb 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 209 0586 00600 |
| Primary APN | 209 0586 00600 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 12 Rooms |
| Units | 4 Units |
| Stories | 2 Stories |
| Building Area | 3,594 sqft Living Area |
| Gross Area | 5,588 sqft |
| 1st Floor Area | 1,962 sqft |
| Basement Area | 1,962 sqft |
| Unfinished Basement | 1,962 sqft |
| Year Built | Built 1880 |
|---|---|
| Effective Year Built | Effective 1880 |
| Exterior Material | Brick |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 4,356 sqft (0.1 acres) |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Account Number | 209 0586 00600 |
|---|---|
| Street Address | 104 WILLIAM ST |
| City | NEW HAVEN |
| State | CT |
| Zip | 06511-5099 |
| Property Category | Other |
| Property Type | Unknown |
| Local Zoning Code | RM2 |
| Legal Block | 586 |
| Legal Lot Number | 600 |
| Jurisdiction | NEW HAVEN CT |
| Township / Civil Division | NEW HAVEN |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 142100 |
104 William St is owned by a company that acquired it in January 2020.
Source: New Haven City records, as of October 20, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 697 NORTONTOWN RD, GUILFORD, CT 06437-2281 |
| 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 | May 31, 2011 · Amount on File |
| Deed Sale | May 31, 2011 · Amount on File |
| Prior Sale | Jun 25, 2003 · Amount on File |
| Deed Book / Page | 8694 / 89 |
| Last Transfer Date | Jan 31, 2020 |
| Transfer Doc | 9976-340 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | NEW HAVEN CT |
| Recording Date | Feb 28, 2020 |
| Property Address | 104 WILLIAM ST, NEW HAVEN, CT 06511-5099 |
| Document Number | 9976-340 |
| Book / Page | 009976 / 000340 |
| Instrument Date | Jan 31, 2020 |
| Instrument | 1904 |
| Transaction Type | Transfer |
| Record Updated | Mar 24, 2020 |
| Title Company | UNKNOWN |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 697 NORTONTOWN RD GUILFORD CT 064372281, GUILFORD, CT 06437-2281 |
The 2026 property tax bill for 104 William St was $18,787, 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 | $18,787.00 (+1.43%) | $470,120 (-) Land $143,150 Building $326,970 | |
| 2025 | $18,523.00 | $470,120 Land $143,150 Building $326,970 | $671,600 Land $204,500 Building $467,100 |
| 2024 | $18,523.00 (+5.92%) | ||
| 2023 | $17,488.00 (-6.42%) | $470,120 (-) Land $143,150 Building $326,970 | |
| 2022 | $18,687.00 | $470,120 Land $143,150 Building $326,970 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 104 William 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 104 William 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 346 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: T-Mobile.
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