155 15th Street (Harbor Hill)
155 15th Street, Brooklyn, NY 11215
BBL 3010417502 · BIN 3397492
- Year built
- 2011
- Type
- Condominium
- Units
- 21
- Floors
- 5
- Landmark
- No
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at Harbor Hill 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.
Harbor Hill spent more than four years getting from permit to first closing, and its record shows that 2008 generation of Brooklyn condominiums clearly. The building was fully permitted in May 2008, just before the credit market seized. The New York State Department of Law accepted the offering plan in December 2009. The sponsor did not declare the plan effective until October 2011, on four signed contracts covering 19% of the residences. DOB signed off in July 2011, and the first unit deeds date from February 2012. Records that date this building 2008 describe the start of that process, not a finished building.
The tax position is the other half of the story. The building carries a 15-year 421-a exemption, which taxes each unit on its 2007 base value and exempts most of the new building's value above it. The exemption began in the 2012/13 tax year, ran at 100% through 2022/23, and has been phasing down 20 points a year since. This is its last year, at 20%. From July 1, 2027 every unit pays full taxes. For a buyer that is simple: the tax bill is already close to its unabated level, and the last step is the smallest. On one fifth-floor residence, removing the final 20% raises taxable assessed value by about a fifth at an unchanged assessment. Unlike buildings still early in a phase-out, the monthly number a buyer sees today will not change much because of the abatement ending.
The sponsor sold the residences between February 2012 and October 2013. It kept some of the garage units longer, selling one in 2018 and the last in August 2022. The sponsor holds nothing today. Every residential and garage lot is in individual hands on the current Department of Finance roll.
Architecture and unit composition
The building is five stories and about 50 feet tall, per the new-building application, over an excavated garage. DOB filings from 2008 record underpinning of the neighboring foundations and a soldier-pile retaining system for a 14-foot excavation. The lot is mid-block on the north side of 15th Street, so the street-facing residences face south. Listing records describe oversized south-facing windows, open kitchens and private balconies.
There are 21 residences: four on the first floor, five on each of floors two through four, and two on the fifth floor, which are the building's penthouse units. The offering plan's Schedule A lists each residence with its assigned storage unit, and balconies or terraces for many lines. Schedule A and listing records show a mix of one- and two-bedroom layouts. The first-floor units with outdoor space and the two fifth-floor residences are the stock that stands apart. Note the plan's own warning that listed square footages are measured to the exterior face of exterior walls and the midpoint of demising walls, so usable floor area is smaller than the Schedule A figure.
Parking is deeded and scarce. The eleven garage units are separate condominium units with their own common-interest percentages. Under the plan, each garage unit's share of the common elements carries a 150% weighting for the garage's higher utility, insurance and maintenance cost. With eleven spaces for 21 residences, a space conveys as a separate deed and prices as a separate asset.
Building operations
The offering plan's first-year budget provided for a visiting part-time superintendent, gas PTAC heating in the recreational area, a gas-fired heater in the garage, and an elevator maintenance contract. The condominium is professionally managed. At five stories the building sits below the six-story threshold of the city's façade-inspection program (FISP/Local Law 11). Condominium financial statements from 2012 through 2016 are on file in the Compass Offering Plan Library. Anything current — budget, reserves, assessments, the garage's share of expenses — should come from the managing agent.
Policy framework
Ownership form: Condominium. Resales are subject to the board's right of first refusal rather than share-transfer approval.
Garage units: Deeded separately from residences, with their own common-charge allocation. Confirm whether the declaration or by-laws restrict garage-unit ownership to residential unit owners before buying or selling a space on its own.
Pets, leasing, pied-à-terre and financing: Not documented in the records available to us. The standard condominium framework applies. Request the current house rules and any leasing restrictions in writing.
Real estate taxes: 421-a at 20% for 2026/27, the final year. Underwrite the full unabated bill from 2027/28.
Recent sales
155 15th Street trades as early-2010s South Slope condominium product, priced per square foot. Its buyers typically compare it against the newer mid-size condominiums between Fourth and Seventh Avenues and against the Fourth Avenue towers. It has three strengths: a small building of 21 residences, south-facing street exposure, and deeded parking in a neighborhood where most condominiums have none. Its weakness against brand-new product is that its abatement is nearly gone while newer buildings may still carry theirs. Buyers comparing the two need to compare full carrying cost, not common charges alone.
Within the building, the fifth-floor residences and outdoor space set the top of the range, and a deeded space adds value that should be priced separately from the apartment. Across Brooklyn through the last complete year, well-kept mid-2000s and early-2010s condominiums with parking have held demand from buyers who want new-construction systems without new-construction pricing. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Recent closings at this building, sourced from NYC Department of Finance records. Apartment-level detail (line, condition, asking-price context) verified upon consultation request.
| Date | Unit | Price |
|---|---|---|
| Aug 26, 2026 | PS6 | $1,280,000 |
| Aug 4, 2026 | PS8 | $1,295,000 |
| Aug 22, 2025 | 3C | $1,285,000 |
| Oct 1, 2024 | 5A | $1,800,000 |
| Sep 4, 2024 | 2D | $1,250,000 |
| Jul 1, 2022 | 5B | $1,850,000 |
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 3-01041-7502) 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.
At the recent median sale of $1.28M (3 sales since 2024), a buyer putting 25% down would pay about $56,179 to close, or 4.4% of the price.
- Mansion tax: $12,850
- Mortgage recording tax: $18,552
- Title insurance: $5,783
- Attorneys, lender, building fees, reserves and filings: $18,995
Assumes a resale (the seller pays transfer taxes), a $4,500 attorney fee and a mortgage on the rest.
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What to know if you’re buying
Use the 2027/28 tax number. The 421-a is at 20% this year and ends June 30, 2027. The increase is modest, but the full-tax figure is the correct one to use.
Confirm the unit count in your own file. It is 21 apartments and 11 parking spaces. Counts above 21 in secondary records include parking.
If you want parking, ask early. All eleven spaces are held by residents. A space becomes available only when its owner sells it.
Read the plan's measurement note. Schedule A square footages overstate usable floor area. Measure, or rely on the recorded floor plans.
What to know if you’re selling
Present the tax position plainly. The benefit is nearly exhausted, and that works for you: a buyer's carrying cost will barely change after closing. Say so, with the DOF figures.
Decide how to sell the parking space. If you own one, choose early whether to include it, price it separately, or keep it. The building's own residents are the most likely buyers of a separate space.
Lead with exposure and outdoor space. South-facing light and balconies on a mid-block South Slope street are what set this building apart. Photograph them first.
Comparable buildings
If you're considering 155 15th Street, also evaluate:
- 205 12th Street, a 2019 South Slope condominium; the newer-construction alternative nearby
- 228 13th Street (The Ainsley), a 2023 South Slope condominium; current product with a newer tax position
- 229 9th Street (Luna), a South Slope and Gowanus-edge condominium; comparable buyer pool, purpose-built plates
- 500 4 Avenue, a 2010 Fourth Avenue condominium permitted in the same era
- 575 Fourth Avenue, a larger 2018 Fourth Avenue condominium a few blocks south
- 343 4th Avenue (Novo), a 2006 Fourth Avenue condominium with garage parking
- 251 7th Street (The Argyle), a 2009 Park Slope condominium; a same-era, small-building peer
- 675 Sackett Street (Park Slope Terrace), a 2004 Park Slope condominium whose 25-year 421-a has only begun to phase out; the opposite tax position
More Park Slope buildings
- 140 8th Avenue, 140 Eighth Avenue — 1936 co-op
- 145 Park Place (Park Place Condominiums) — 1925 condop
- 153 Lincoln Place — 1886 condominium
- 1638 Eighth Avenue (Prospect Park Terrace) — 2010 condominium by Karl Fischer Architects
- 190 Garfield Place (The Garfield Regency) — 1905 condop
- 200 16th Street — 1926 condominium by Karl Fischer Architects
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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