New York City property record for 23 Adelphi St, Brooklyn, NY 11205
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 5,500 sqft · built 1915 |
| Lot Size | 0.057 acres (2,500 sqft) |
| Owner | Company Name on File |
| Last Sale | $2,500,000 (Mar 2023) |
| Tax Bill | $16,728 (2025) |
| Deeds & Mortgages | Mar 2023 Sale & Mortgage |
| APN | 02032-0013 |
| Primary APN | 02032-0013 |
|---|---|
| Alternative APNs |
|
| Units | 16 Units |
|---|---|
| Stories | 4 Stories |
| Building Area | 5,500 sqft Living Area |
| 1st Floor Area | 1,375 sqft |
| Year Built | Built 1915 |
|---|---|
| Effective Year Built | Effective 1915 |
| Architectural Style | Multi-Family |
| Lot Area | 2,500 sqft (0.057 acres) |
| Lot Dimensions | 100 ft deep x 25 ft wide |
| Account Number | 3-02032-0013 |
|---|---|
| Street Address | 23 ADELPHI ST |
| City | BROOKLYN |
| State | NY |
| Zip | 11205-1151 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Local Zoning Code | M1-2 |
| Legal Block | 2032 |
| Legal Lot Number | 13 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 21100 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Fort Greene Historic District (Boundary Increase) listed 1984 · 379 contributing resources · NRIS 84002451 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
23 Adelphi St, a residential property, is owned by a company that bought it in March 2023.
Source: New York City records, as of August 31, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 110 E 31ST ST, NEW YORK, NY 10016-6809 |
| Owner Type | Company |
| Vesting | Partnership |
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 | Mar 22, 2023 · Amount on File |
| Deed Sale | Mar 22, 2023 · Amount on File |
| Prior Sale | Feb 21, 2013 · Amount on File |
| Deed Document Number | 202372472 |
| Prior Transfer Date | Oct 30, 2007 |
| Prior Transfer Doc | 0000072662 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Recording Date | Mar 22, 2023 |
| Property Address | 23 ADELPHI ST, BROOKLYN, NY 11205-1151 |
| Document Number | 0000072472 |
| Instrument Date | Mar 9, 2023 |
| Instrument | 2023000072472 |
| Transaction Type | Transfer |
| Record Updated | Mar 28, 2023 |
| 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 |
|---|---|
| Address | 440 89TH ST # ST3A, ST3A, BROOKLYN, NY 11209-6071 |
| Name | Verified Name |
|---|---|
| Address | 110 E 31ST ST # 1ST, NEW YORK, NY 10016-6809 |
| Document Number | 0000072474 |
|---|---|
| Date | Mar 22, 2023 |
| Instrument | 2023000072474 |
| Name | RIDGEWOOD SAVINGS BANK |
|---|
| Amount | Amount on Record |
|---|
The 2025 property tax bill for 23 Adelphi St was $16,728, up 6.7% from the year before.
Source: New York City assessment roll, as of May 4, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Kings County |
| Municipality | New York City |
| Unified School District | New York City Department Of Education (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $841,500 (+20.03%) Land $45,000 Building $796,500 | $1,870,000 (+20.03%) Land $100,000 Building $1,770,000 | |
| 2025 | $16,728.00 (+6.7%) | $701,100 Land $45,000 Building $656,100 | $1,558,000 Land $100,000 Building $1,458,000 |
| 2024 | $15,678.00 (+3.19%) | ||
| 2023 | $15,194.00 | $730,350 Land $45,000 Building $685,350 | $1,623,000 Land $100,000 Building $1,523,000 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA has no flood map on file for 23 Adelphi St; 8 flood insurance policies are in force nearby.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 8 in force |
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.
The area around 23 Adelphi 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 | NEW YORK CITY SYSTEM serves 8,271,000 people · EPA ID NY7003493 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2025 |
| Lead | 10 ppb (2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Uncovered finished water reservoir currently in violation since Feb 2017 |
| 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 788 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Optimum, Skywire Networks, Starry.
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