- Year built
- 2024
- Type
- Condominium
- Landmark
- Landmark or historic district
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at Townhouse 270 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.
Townhouse 270 is a four-story, four-residence condominium on a 25-by-100-foot lot in South Slope, built on the site of a three-story 1899 townhouse. Brokerage records show the old house selling in May 2022 for $2,000,000; the new-building application followed that November.
The building is finished and closing. The Department of Buildings shows a certificate of occupancy issued on the new-building job, the Attorney General accepted the plan in March 2026, the sponsor declared it effective in April, and ACRIS records two sponsor deeds in July and August 2026, both at about $1.8 million. A buyer for the two remaining homes can underwrite against recorded prices.
Architecture and residences
The new-building application was filed in November 2022 and its first permit issued in February 2024. The Department of Buildings describes "new four (4) dwelling units, four (4) story residential building," 50 feet tall. The filings were made by consultants and engineers; no architect of record was identified in the records reviewed. Plumbing, mechanical and sprinkler work was filed alongside.
City land-use data gives the finished building about 5,287 square feet of floor area, or roughly 1,320 square feet per home before deducting stairs and common space. The lot is split between an R6B residential district and a C4-3A district.
The unit designations recorded in ACRIS, TH1, FL2, FL3 and PH, suggest a lower townhouse unit, two single-floor homes and a penthouse; the plan's Schedule A will confirm. No floor plans, square footages or finish details were found in the records reviewed for this page.
Offering and pricing
Per the offering plan filed with the New York State Attorney General (plan CD250012), the plan was submitted January 16, 2025, accepted March 11, 2026, and declared effective April 9, 2026, with TH270 LLC as sponsor and four residential units. The total offering price rose from $8,300,000 to $8,375,000, an increase of $75,000. The database records one unit sold, a figure set at effectiveness that it has not updated since closings began.
The offering averages about $2.09 million per home. The two recorded sales came in below that average, which leaves about $4.75 million of the offering total on the two unsold homes, the townhouse unit and FL2.
Recorded sales
ACRIS shows two sponsor deeds:
- FL3: $1,832,850, deed dated July 30, 2026
- PH: $1,825,000, deed dated August 24, 2026
The FL3 figure equals $1,800,000 plus 1.825%, the combined state and city transfer tax below $3 million. The usual reason is that the buyer paid the sponsor's transfer taxes, which then count as part of the consideration. The penthouse deed shows a round $1,825,000. Square footages are not published, so price per square foot cannot be stated from the records reviewed. 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 →What would your apartment rent for?
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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
The plan is effective and closings are under way. Contracts are binding under the plan's terms. Read every amendment with the contract.
Remaining inventory. If the offering total holds, the townhouse unit and FL2 carry about $4.75 million between them. Compare each one's price per square foot with the recorded upper-floor sales once Schedule A sizes are in hand.
Who pays transfer taxes. At least one deed suggests the buyer paid the sponsor's transfer taxes. In sponsor sales the buyer customarily pays the New York State transfer tax (0.4%) and the New York City real property transfer tax (1.425% above $500,000), plus the state mansion tax of 1% at $1 million and above. Use the calculators below to run your price.
Certificate of occupancy and tax position. Ask whether the certificate is final or temporary. No tax abatement has been disclosed; confirm the tax position in the plan.
Sponsor control. The sponsor controls the board until enough units close to turn it over. The by-laws set the threshold.
Comparable buildings
If you're considering 270 14th Street, also look at these South Slope and Park Slope condominiums:
- 205 14th Street — 1915 building converted to five condominiums, sold out between 2024 and 2025
- 225 14th Street — nine-residence condominium with three- and four-bedroom homes and outdoor space
- 333 14th Street — seven-residence condominium with an automated parking garage
- 228 13th Street — The Ainsley, 28 residences with deeded parking
- 248 20th Street — 1899 house being enlarged to six stories as a four-residence condominium
- 379 12th Street — six-residence elevator condominium, all sponsor sales recorded from $1.93 million
More Park Slope buildings
- 267–273 1st Street — 2003 condominium
- 269 4th Avenue (Six Garfield), 269 Fourth Avenue — condominium
- 27 Prospect Park West — 1928 co-op
- 270 Fifth Street (The Milk Factory) — co-op
- 275 Sixth Avenue — 1920 condominium
- 276 13th Street (5 One 5 Condominiums) — 2008 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