668 Baltic Street
668 Baltic Street, between Fourth and Fifth avenues · Park Slope
BBL 3009407503 · BIN 3018990
- Type
- Condominium
- Landmark
- No
- Amenities
- Private outdoor space, on-site parking, central air conditioning and in-home laundry
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 668 Baltic 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
668 Baltic Street is a three-residence condominium developed from an existing three-family building. Architect Paul Christakos filed the enlargement that added a fourth story, and the project has a certificate of occupancy. The Attorney General accepted the offering in October 2024, with effectiveness following in February 2025. Sponsor 668 Baltic LLC created three condominium residences in the enlarged property.
The building includes a ground-floor duplex with both front and rear outdoor areas, a single-level middle residence and a larger upper home. A private curb cut provides access to on-site parking, an unusual feature on this residential block. The renovation introduced central air conditioning, in-home laundry and open living and dining spaces.
Recent sales
Recent closings at this building, curated by The Roebling Team research desk. 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 |
|---|---|---|---|---|---|
| Feb 2, 2026 | 1 | 2 BR · 2.5 BA · 2,125 sf | $2,750,000 | $1,294/sf | -0.9% |
| Dec 18, 2023 | — | 6 BR · 3 BA · 3,256 sf | $2,500,000 | $768/sf | +0.0% |
Market read. Most recent trades (2026) cleared a median $1,294/sf across 1 sale. Median listing discount 0.5% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00940-7503) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. 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.
Buying here? Condo closing costs with a mortgage typically run 3 to 6% of the price. See NYC co-op and condo closing costs, line by line.
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What to know if you’re buying
Parking rights matter in this three-home association. Establish which residence controls the curb cut and parking area, including access and maintenance obligations. The three owners also share responsibility for building reserves; lenders may apply closer project review to a condominium of this size.
Comparable buildings
- Timber House: A contemporary condominium nearby with a larger residential inventory.
- Park Slope Manor Condominium: A low-rise condominium for comparing a broader association's operating scale.
- Lumber Yard Condominium: Another low-rise condominium near the Park Slope–Gowanus boundary.
More Park Slope buildings
- 643 Baltic Street — 1920 condominium
- 648 Second Street — 1903 co-op
- 667 Degraw Street — 1899 condominium
- 670 President Street — 1920 co-op
- 675 Sackett Street (Park Slope Terrace) — 2003 condominium
- 680 Carroll Street — 1930 co-op
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.
Considering a move at 668 Baltic Street?
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