327 4th Street
327 4th Street, between Fifth and Sixth Avenues, Park Slope
Park Slope, Brooklyn
BBL 3009820068 · BIN 3324961
- Year built
- 1920
- Type
- Cooperative
- Amenities
- Common laundry
- Landmark status
- Not an individual landmark; not in a historic district
- NYC Landmarks Preservation Commission and City Planning records, updated February 2026
- Doorman
- No doorman
Every recorded sale at this building, 2007–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf, 2026 to date
- $1,029
- 1 sale
- Listing discount
- -1.0%
- Recorded sales
- 7
- On record
- 2007–2026
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About the building
327 4th Street is a nine-residence cooperative in a five-story walk-up building on the Fifth-to-Sixth Avenue block. The ownership entity carries both 327 and 329 4th Street in its name. City records date the building to 1920 and identify a later alteration in 1986. The building is outside the designated historic district and has more built floor area than the current R6B residential allowance.
The apartment mix is unusually varied for a nine-residence cooperative. It includes compact two-bedroom flats and upper triplex configurations reaching approximately 1,750 square feet. Upper multilevel homes can incorporate a separate work area and private roof-deck access, while ordinary flats keep living and sleeping rooms on one floor. Interior stairs therefore form part of some apartments in addition to the building's common walk-up circulation. Shared laundry serves the cooperative.
Building staffing and amenities
- Doorman
- No doormanSource: The Roebling Team's building profile
- Elevator
- NoSource: NYC Department of City Planning records (PLUTO)
- Amenities noted
- Laundry roomSource: The Roebling Team's building profile
Staffing and amenities as our building profile and recent listing records describe them. A feature not listed is not confirmed absent. Outdoor space, parking and some facilities can belong to particular apartments or to a separate owner; confirm access for the specific apartment.
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 | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Jun 22, 2026 | 4C | 3 BR · 2 BA · 1,750 sf | $1,800,000 | $1,029/sf | +2.9% |
| Aug 13, 2018 | 4C | 2 BR | $1,389,000 | +0.0% | |
| Dec 29, 2014 | 1L | 2 BR · 1 BA | $940,000 | -2.6% | |
| Mar 13, 2014 | 4C | 2 BR · 1,750 sf | $1,250,000 | $714/sf | +4.2% |
| Sep 30, 2009 | 4A | 2 BR · 1,350 sf | $775,000 | $574/sf | -6.1% |
| Oct 10, 2007 | 3R | 2 BR · 738 sf | $682,000 | $924/sf | +2.1% |
Market read. Most recent trades (2026 to date) cleared a median $1,029/sf (recorded) across 1 sale. Median listing discount -1.0% over ask.
Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00982-0068). 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; square footage on co-ops is not officially recorded, figures shown are approximate.
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What to know if you’re buying
The upper triplex arrangements combine a common-stair climb with internal stairs, so access differs considerably from the single-level apartments. Private roof space also places exterior surfaces directly above other residences; the cooperative's division of responsibility for deck upkeep and the underlying roof matters for those homes. Major building repairs are shared among only nine residences.
Comparable buildings
- 240 8th Street — A small cooperative in a former ink factory, with loft proportions and a similarly limited ownership base.
- 459 12th Street — A garage conversion with a small inventory of cooperative apartments.
- Sterling Atrium — A cooperative spanning converted nonresidential buildings, with duplex and outdoor configurations.
More Park Slope buildings
- 31 Eighth Avenue — 1888 co-op
- 313 Sixth Avenue — 1935 co-op
- 316 22nd Street — 2023 condominium
- 333 14th Street — 2017 condominium
- 34 Garfield Place — 1931 condominium
- 340 11th Street — 1991 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.
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646.939.7375 · c.cohen@compass.com