400 3rd Street
400 3rd Street, between Fifth and Sixth avenues, Park Slope
Park Slope, Brooklyn
BBL 3009820024 · BIN 3021078
- Year built
- 1920
- Type
- Cooperative
- Landmark status
- Not an individual landmark; not in a historic district
- NYC Landmarks Preservation Commission and City Planning records, updated February 2026
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 400 3rd Street would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.
About the building
400 3rd Street is a four-story cooperative on the broad Park Slope block between Fifth and Sixth avenues. Its eight residences occupy a building approximately thirty-seven and a half feet wide on a lot extending about 115 feet deep. The property belongs to the neighborhood's prewar apartment-house stock and sits outside the Park Slope Historic District.
The apartments include three-bedroom, two-bathroom homes with six-room layouts. Prewar interior details include decorative fireplaces and wood floors, and renovated homes accommodate in-unit laundry. Apartments on the upper floors are reached by stairs.
Local Law 97
This building is below the 25,000 sq ft threshold at which LL97 limits apply to a building on its own. It is still covered if it shares a tax lot or condominium board with buildings totaling over 50,000 sq ft; confirm on DOB’s covered-buildings list.
See full Local Law 97 analysis →Recent sales
Recent transfers at this building, from The Roebling Research Library. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.
| Date | Unit | Apartment | Price | vs. Ask |
|---|---|---|---|---|
| Jul 27, 2026 | 2L | 3 BR · 2 BA | $2,150,000 | +19.8% |
| Aug 31, 2021 | 4L | 3 BR · 2 BA | $1,850,000 | -7.3% |
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00982-0024). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price.
What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 400 3rd Street and nearby.
Buying here? Co-op closing costs typically run 2 to 3% of the price. See NYC co-op and condo closing costs, line by line.
Keep up with 400 3rd Street and its market
The Roebling Report, monthly: Manhattan sales data and analysis, including buildings like 400 3rd Street. Unsubscribe anytime.
We’ll use your email for The Roebling Report and note your interest in this building. See our privacy policy.
What to know if you’re buying
Eight apartments support the cooperative's common roof and masonry. A large repair can therefore carry a meaningful per-apartment allocation even in a building with limited services; the share schedule determines each home's portion.
Comparable buildings
- 240 8th Street — another small prewar cooperative near the Fifth Avenue corridor.
- 904 Union Street — a similarly low-rise cooperative with a modest apartment count.
- 459 12th Street — small-association cooperative ownership farther south in Park Slope.
- The Presidential — a larger cooperative within a comparable prewar low-rise form.
More Park Slope buildings
- 393 Dean Street (Park Slope Manor Condominium) — 2004 condominium
- 396 Third Street — 1940 co-op
- 40 Prospect Park West — 1942 co-op
- 404 3rd Street — co-op
- 408 3rd Street — 1920 condominium
- 409 Third Street — 1921 condominium
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Park Slope.
The full playbook — what goes in the package, how boards read your financials, the interview, and the timeline — plus sample cover, reference, and personal letters you can adapt.
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent. Where this page compares one building or neighborhood to another, that is our analysis of the recorded record — it names the measure, the period and the sample it rests on, and it is an observation about medians rather than a prediction about any particular apartment.
Considering a move at 400 3rd Street?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
646.939.7375 · c.cohen@compass.com