489 Seventh Avenue
489 Seventh Avenue, Brooklyn, NY 11215
Park Slope, Brooklyn
BBL 3011127505 · BIN 3027082
- Year built
- 1920
- Type
- Condominium
- Landmark
- No
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 489 Seventh Avenue 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.
489 Seventh Avenue is a four-story, 19-foot-wide 1920 building on Seventh Avenue in the South Slope, converted from four apartments over a store into four condominium residences. The sponsor sold all four within three weeks, between April 28 and May 13, 2026, for $6.97 million in recorded deed amounts against a $7.13 million offering.
The building is sold out. Any purchase now is a resale from an individual owner.
Architecture and residences
Eric Safyan Architect filed the work in 2024. An interior renovation of the second-, third- and fourth-floor apartments, with new kitchens and baths, was permitted in September 2024. A separate alteration changed the building's legal use from four apartments plus a store to four apartments, with partition work at the cellar and ground floor, a new roof bulkhead and replacement windows; it was permitted in November 2024. The Department of Buildings lists a certificate of occupancy issued on that job, with sign-off on April 30, 2026. New ductless mini-split heating and cooling was filed alongside.
PLUTO records about 3,816 gross square feet on a 1,485-square-foot lot, or about 950 gross square feet per residence. Sponsor marketing describes three-bedroom, two-bath residences on the upper floors, with private outdoor space for all but one home. Residence 3 is listed at about 930 square feet with three bedrooms, two baths, a 367-square-foot private roof deck and a basement storage unit. (The same listing's data field gives three baths; its description gives two.)
Offering and pricing
Per the offering plan filed with the New York State Attorney General (plan CD250096), the plan was submitted March 24, 2025 and accepted August 11, 2025, at a total offering price of $7,128,000, with 489 7th Ave LLC as sponsor and four residential units. The database does not record an effective date or units sold, although ACRIS shows all four homes deeded. The condominium declaration was dated December 1, 2025. The amendments were not reviewed for this page; the Attorney General's plan-detail page returned no data when checked in October 2026.
Recorded sales
ACRIS shows four sponsor deeds:
- Residence 4: $1,695,000, deed dated April 28, 2026
- Residence 2: $1,522,284, deed dated April 29, 2026
- Residence 3: $1,619,646, deed dated May 7, 2026
- Residence 1: $2,129,254, deed dated May 13, 2026
Three of the amounts sit a fixed percentage above a round number, the pattern of transfer taxes grossed up into the deed: $1,495,000 at 1.825%, and $1,605,000 and $2,110,000 at 0.9125%. On that reading the four contract prices total $6,905,000, about 97% of the offering. That is our arithmetic; the contracts are not public. Residence 3 was listed at $1,645,000 on November 11, 2025 and went into contract December 16, 2025, per the sponsor's listing; the backed-out $1,605,000 is about $1,726 per square foot on the listed 930 square feet. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
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 closings 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 |
|---|---|---|---|---|---|
| May 7, 2026 | 3 | 3 BR · 2 BA · 930 sf | $1,619,645 | $1,742/sf | -1.5% |
Market read. Most recent trades (2026 to date) cleared a median $1,742/sf (recorded) across 1 sale.
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-01112-7505; each condominium apartment is its own tax lot). 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 from recorded condo declarations and offering plans.
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What to know if you’re buying
Resales only. All four homes are deeded. Compare any resale ask with the April and May 2026 deeds.
An old building with new interiors. The renovation replaced kitchens, baths, windows and mechanical systems. Ask what was done to the roof, façade, structure and cellar, and what the reserve covers.
A four-owner condominium. Four owners run the building. Read the budget and how the by-laws allocate repairs.
Carrying costs. The sponsor's listing gave Residence 3 common charges of $496 a month and taxes of $431 a month ($5,172 a year). Confirm current figures with the managing agent.
Comparable buildings
- 205 14th Street — 1915 South Slope building converted to five condominiums, sold out 2024–2025
- 270 14th Street — four-residence South Slope new construction, sponsor closings near $1.8 million
- 241 13th Street — four-residence South Slope new construction
- 249 18th Street — five-residence South Slope condominium by Z Architecture
- 8 Windsor Place — four-residence condominium from an enlarged commercial building, on the same block
- 1638 Eighth Avenue — Prospect Park Terrace, a 27-residence condominium on the same block
More Park Slope buildings
- 478 Third Street — 1940 co-op
- 481 18th Street — condominium
- 486 Third Street — 2007 condominium
- 497 Ninth Street — 1893 condominium
- 500 4 Avenue, 500 Fourth Avenue — 2010 condominium
- 501 8th Avenue — 1910 condominium
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Park Slope.
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