- Year built
- 2025
- 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 218 23rd 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.
218 23rd Street is a four-residence condominium on a 25-by-100-foot lot in Greenwood Heights, half a block from Fourth Avenue and about two blocks from the R train at 25th Street. Input NYC designed it for developer Kings Capital. The Attorney General accepted the offering plan in November 2025, and listing records show marketing from June 2026.
The plan's $7.9 million total averages $1.975 million a home. The two asks we could confirm on open listings are $1,675,000 for unit 2, cut from $1,700,000, and $2,249,000 for the penthouse duplex, unit 4. Compare any offer with the plan price in Schedule A, not only with the ask.
Architecture and residences
The building replaced a two-story house on the lot. The new-building job dates to a November 2019 filing for a four-story, 55-foot building with six apartments and about 7,233 square feet of construction floor area. The city approved plans in June 2020 and fully permitted the job in May 2024; the current filing shows four dwelling units, the count in the offering plan. PLUTO still records six units and 6,090 square feet, which reflects the earlier scheme.
The published renderings show a light gray brick facade laid in decorative bond patterns with rounded corners, a grid of floor-to-ceiling windows, a stack of balconies with curved metal railings on the western half, and a landscaped roof deck behind a set-back bulkhead. The residences are two- and three-bedroom layouts.
Listing records describe homes with ceilings above nine feet, private front and rear outdoor space on the upper floors, five-inch white oak floors, rift-cut oak kitchen cabinetry with honed quartzite counters, Bertazzoni, Faber and Fisher & Paykel appliances, Porcelanosa tile through the lobby and baths, a virtual doorman with keyless entry, in-unit washers and dryers, and a deeded storage cage in the basement for each home. One listing record states no pets; confirm the pet policy in the plan's by-laws.
Offering and pricing
Per the offering plan filed with the New York State Attorney General (plan CD250236), the plan was submitted July 28, 2025 and accepted November 25, 2025 at a total offering price of $7,900,000, with 218 23rd Owner LLC as sponsor. It covers four residential units. The record shows no effective date and no units sold as of October 2026. The Attorney General's online record returned no data when checked for this page, so these figures come from the database's summary export and any amendments were not reviewed.
| Unit | Beds / baths | Size | Ask | $/sf | Seen |
|---|---|---|---|---|---|
| 2 | 3 / 2 | 1,264 sf | $1,675,000 (from $1,700,000 in June) | about $1,325 | October 2026 |
| 4 (penthouse duplex) | 3 / 3 | not stated | $2,249,000 | — | October 2026 |
Asks are from listing records opened October 30, 2026 and were not confirmed against the plan's Schedule A. The penthouse has two roof terraces and front and rear balconies. The unit 3 listing showed as inactive on October 30, and we could not confirm current asks for units 1 and 3. Quoted common charges are $395 a month for unit 2 and $539 for the penthouse. Listing records cite a sponsor incentive of 12 months of tax concession or a mortgage-rate buydown on unit 2, and a five-year, $60,000 tax concession on the penthouse.
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?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 218 23rd Street and nearby.
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
Accepted, not effective. The sponsor can sign contracts, but the plan is not effective until the sponsor declares it so after reaching the minimum sales threshold. Deposits are held in escrow until then. Ask how many contracts are signed.
Price against the plan. Read Schedule A for the plan price of the unit you want. Any amendment changing prices was not reviewed for this page.
Closing costs. In a sponsor sale the buyer customarily pays the New York State transfer tax (0.4%) and the New York City transfer tax (1.425% above $500,000), plus the mansion tax of 1% from $1 million and 1.25% from $2 million. On a $1.675 million purchase that is about $30,600 in transfer taxes and $16,750 in mansion tax (our arithmetic). Use the calculators below.
Taxes. Listing records quote real estate taxes of about $1,606 a month for unit 2 and $2,193 a month for the penthouse before the sponsor's concession. Confirm the plan's projected taxes for the unit you want and how long any sponsor concession runs.
Comparable buildings
If you're considering 218 23rd Street, also look at these South Slope and Greenwood Heights condominiums:
- 248 20th Street — an 1899 house enlarged into four condominium residences, plan accepted July 2026
- 249 18th Street — five-story, five-residence condominium with asks near $2 million
- 179 20th Street — Lumina, an 11-story, 26-residence condominium on Fourth Avenue
- 270 14th Street — Townhouse 270, a four-residence new building with closings at $1.8 million
- 205 14th Street — five-residence conversion, sold out in 2025
More Park Slope buildings
- 209 Lincoln Place — 1928 co-op
- 21 Lincoln Place — condominium
- 215 St. John's Place, 215 St. John's Place · Park Slope — co-op
- 219 St. John's Place — condominium
- 22 Eighth Avenue — 1883 co-op
- 22 St. John's Place, 22 St. John's Place · Park Slope — 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.
Considering a move at 218 23rd Street?
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646.939.7375 · c.cohen@compass.com