264 recorded events, 1972–2026, from 11 city data systems. The city's paper trail here is mostly 130 311 service requests, 46 DOB violations, 30 DOB permits.
Full record, year by year Support this site
No heat or hot-water complaints in the last three years.
No bedbug-infested units reported in the last three years of filings.
1 service requests in the last three years. Most common: Street Condition (1).
$198,512 in permitted construction work filed since 2016 (10 filings with a declared cost) — a rough measure of how actively the owner maintains the building. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $2,191,000 | $985,950 |
| 2026 | $2,269,000 | $1,021,050 |
| 2027 | $2,259,000 | $1,016,550 |
The city's market estimate has risen 3% between tax years 2025 and 2027.
| Restaurant | Cuisine | Grade | Notes |
|---|---|---|---|
| Shapeshifter Lab | American | A | — |
Report to 311: Food poisoning · Food safety complaint
1 restaurant · 0 with mice evidence · See them on the Mice Map
Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).
Not in a hurricane evacuation zone.
Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.
No street-flooding or sewer-backup complaints on record at this address.
Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps (cloudburst), NYC hurricane evacuation zones, and 311 records for this address.
| Subway | 7 Av — B Q · 0.2 mi straight-line (about a 6-minute walk) · station accessibility: none Grand Army Plaza — 2 3 · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: 7 Av / Union St — B67 B69 · 250 ft |
| Citi Bike | Berkeley Pl & 7 Ave · 250 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 282 Park Slope. Confirm with the DOE's school search. |
Distances are straight-line, not walking routes. Transit locations from the MTA and Citi Bike, bike facilities from NYC DOT, school zones from the DOE's 2024–25 maps.
837 Union Street
| Rats or mice | Rats or mice |
| Food poisoning | Food poisoning |
| Food safety complaint | Food safety complaint |
| Anything else | Anything else |
1 311 service request from this address in the last three years.
311 will ask for the address, the apartment if the problem is inside, and what's wrong. Contact details are optional for most complaints; food-poisoning reports can be anonymous. Complaints appear in the city's public 311 data, usually within a day or two, and then in the Live from 311 box on this page.
Most recent mortgage recorded against this lot: $2,100,000 on 2024-02-28 (lender: Velocity Commercial Capital, LLC). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2024-02-28 | Mortgage $2,100,000 — from 837-839 UNION STREET, LLC to VELOCITY COMMERCIAL CAPITAL, LLC | $2,100,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 1 | 39 | 0 | 1 | 41 |
| 2018 | 6 | 1 | 13 | 0 | 1 | 21 |
| 2019 | 2 | 4 | 13 | 0 | 1 | 20 |
| 2020 | 0 | 2 | 1 | 0 | 1 | 4 |
| 2021 | 0 | 0 | 3 | 0 | 1 | 4 |
| 2022 | 3 | 0 | 2 | 0 | 1 | 6 |
| 2023 | 12 | 10 | 1 | 4 | 2 | 29 |
| 2024 | 0 | 2 | 0 | 2 | 1 | 5 |
| 2025 | 0 | 0 | 1 | 0 | 1 | 2 |
| 2026 | 0 | 0 | 0 | 1 | 1 | 2 |
Every one of the 264 recorded events, 1972–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11215 · Landlord rankings · How grades work · The map · The Mice Map