- Year built
- 1903
- Type
- Condominium
- Amenities
- Private keyed elevators, virtual doorman and secure lobby lockers
- Landmark status
- Not an individual landmark; in the Ladies' Mile Historic District
- NYC Landmarks Preservation Commission records, updated February 2026
- Leasing by owners
- Permitted
- Pets
- Pets permitted with conditions; species not stated
- Washer/dryer
- Permitted with conditions
- Doorman
- Virtual doorman
Every recorded sale at this building, 2007–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf, 2026 to date
- $1,496
- 2 sales
- Listing discount
- 0.4%
- Recorded sales
- 16
- On record
- 2007–2026
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at Infinity Flats 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
Infinity Flats contains eight full-floor residences in a converted Flatiron office building. The conversion designed by Karl Fischer was permitted in June 2005 and signed off by DOB in April 2008, with original apartment closings beginning in 2007. The nine-story masonry building stands within the Ladies' Mile Historic District. Its street elevation includes a stone base, arched windows and contrasting corner details around the upper brickwork.
The full-floor apartments measure approximately 4,073 to 4,109 square feet. Large living-and-dining spaces extend across the floor plates, with three- and four-bedroom arrangements and multiple bathrooms. Private keyed elevator access leads into each residence, and virtual entry service and lobby lockers support deliveries. Interior features include wood floors, beamed ceilings and fireplaces. The penthouse adds skylights and private exterior space within the building's upper configuration.
Application and transaction fees
Fees below are from building management's published schedule, as of August 2026. They are shown as published, item by item; no total is added because the total depends on the transaction. Deposits are listed apart from nonrefundable charges.
Purchase
8 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing Fee | Paid by Buyer | When With the application | Amount $700 | Refundable Not stated |
| Credit Report FeePer applicantRequired | Paid by Buyer | When With the application | Amount $200 Per applicant - plus any additional occupants | Refundable Not stated |
| Waiver of Right of First Refusal | Paid by Seller | When With the application | Amount $350 | Refundable Not stated |
| Closing Administrative Fee | Paid by Buyer | When At closing | Amount $225 | Refundable Not stated |
| Expedited Closing FeeConditionalConditions: Less than 48 hr notice | Paid by Buyer | When At closing | Amount $400 | Refundable Not stated |
| Postponement Fee | Paid by Buyer | When At closing | Amount $400 | Refundable Not stated |
| Closing Administrative Fee | Paid by Seller | When At closing | Amount $225 | Refundable Not stated |
| Common ChargesRequired | Paid by Seller | When At closing | Amount Equal to any Common Charges Due and Next Month's Common Charges | Refundable Not stated |
Rental or lease
3 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Waiver of Right of First Refusal | Paid by Landlord | When With the application | Amount $350 | Refundable Not stated |
| Application Processing Fee | Paid by Tenant | When With the application | Amount $350 | Refundable Not stated |
| Credit Report FeePer applicantRequired | Paid by Tenant | When With the application | Amount $200 Per applicant - plus any additional occupants | Refundable Not stated |
Management updates its schedule without a public filing. The date is when management last updated the page, not when a rule changed. Confirm the current schedule with management before you apply.
Considering an apartment here? Send Corey the listing to discuss the building's costs and purchase requirements.
Own an apartment here? Request an apartment-specific pricing review.
Sublet and pied-à-terre policy
A condominium owner leasing a unit and a co-op shareholder subletting are different rules, and a building-wide rule is different from a restriction on one apartment. This is the building's rule; confirm it for the specific apartment.
- Leasing by owners
- PermittedSource: building management's published schedule, as of August 2026
- Pied-à-terre ownership
- Not verified
Considering an apartment here? Send Corey the listing to discuss the sublet and pied-à-terre rules for that apartment.
Pets and in-unit washer/dryer
- Pets
- Pets permitted with conditions; species not statedUpon ApprovalSource: building management's published schedule, as of August 2026
- In-unit washer/dryer
- Permitted with conditionsCase-by-case basisSource: building management's published schedule, as of August 2026
Considering an apartment here? Send Corey the listing to confirm the pet and washer/dryer rules for that apartment.
Building staffing and amenities
- Doorman
- Virtual doormanSource: The Roebling Team's building profile
- Virtual or video entry
- YesSource: The Roebling Team's building profile
- Elevator
- YesSource: NYC Department of Buildings elevator records
Staffing and amenities as our building profile and recent listing records describe them. A feature not listed is not confirmed absent. Outdoor space, parking and some facilities can belong to particular apartments or to a separate owner; confirm access for the specific apartment.
Local Law 97
- 2024–2029 annual penalty
- $4,990/yr
- 2030–2034 annual penalty
- $40,466/yr
- Per unit / month range
- $52 – $422
- Modeled exposure split equally across 8 units (the residential count on the city's lot record). Not an assessed amount; condominium owners are typically charged by each unit's common-interest percentage.
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City data last refreshed October 2026.
See full Local Law 97 analysis — emissions history, scenarios, methodology →Facade safety — Local Law 11
The latest available FISP filing classified the facade as Safe — no repairs were required at that inspection. A filed Safe grade is not a guarantee of current condition: owners still maintain the facade and, where required, observe parapets each year. Future inspection timing (Local Law 49 of 2025 changed the cycle framework from October 1, 2026), repair and any assessment decisions remain building-specific.
How to read this, and where it comes from
QEWI = Qualified Exterior Wall Inspector — a licensed professional engineer or registered architect who meets DOB’s FISP qualifications and signs the report (the independent expert, not the managing agent).
Penalties shown are amounts DOB assessed against filings on record across 2005–10 to 2020–25. The FISP dataset does not record whether they were paid, contested or remain open, so treat the figure as history rather than a current balance and confirm the building’s standing with the managing agent.
Source: NYC DOB facade filings (FISP) · The Roebling Research Library. City data last refreshed October 2026.
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 |
|---|---|---|---|---|---|
| Aug 3, 2026 | 2 | 3 BR · 4.5 BA · 4,073 sf | $5,250,000 | $1,289/sf | -7.1% |
| May 26, 2026 | PH | 4 BR · 4.5 BA · 4,109 sf | $6,995,000 | $1,702/sf | +0.0% |
| Nov 20, 2018 | 6 | 3 BR · 4.5 BA · 4,109 sf | $5,100,000 | $1,241/sf | +0.0% |
| Jul 3, 2012 | PH | 4 BR · 4,109 sf | $6,000,000 | $1,460/sf | -4.0% |
| Jun 24, 2011 | 3 | 4 BR · 4,109 sf | $4,300,000 | $1,046/sf | — |
| Jul 29, 2010 | 5 | 4 BR · 4,109 sf | $3,975,000 | $967/sf | -0.6% |
| Jul 22, 2010 | 4 | 4 BR · 4,109 sf | $4,100,000 | $998/sf | -4.5% |
| Apr 29, 2010 | 2 | 4 BR · 4,073 sf | $3,780,000 | $928/sf | -5.5% |
Market read. Most recent trades (2026 to date) cleared a median $1,496/sf (recorded) across 2 sales. Median listing discount 0.4% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
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 1-00849-7506; 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.
What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at Infinity Flats 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.
Keep up with Infinity Flats and its market
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What to know if you’re buying
Each owner occupies a full floor, leaving only eight residential interests to support the elevator systems and historic masonry envelope. The large apartment footprints do not create a large association: a major façade or elevator project still falls across a small group. Changes affecting the visible windows or exterior also fall within historic-district oversight.
Comparable buildings
- The Story House — A nearby eight-residence condominium converted from a turn-of-the-century loft building.
- L'Elysee — A commercial loft conversion with full-floor apartments and duplex penthouses.
- Iron Lofts — A smaller loft condominium in a protected Neo-Renaissance store-and-loft building.
More Flatiron buildings
- 21 West 20th Street — 2015 condominium by Beyer Blinder Belle
- 22 West 15th Street (Grosvenor House) — 1989 condominium by SLCE Architects
- 23 East 22nd Street (One Madison) — 2007 condominium by CetraRuddy Architects
- 26 East 22nd Street — co-op
- 26 West 20th Street — 1852 co-op
- 27 East 22nd Street (L'Elysee) — 1902 condominium
The neighborhood
For the full corridor — architecture, transit, and pricing across Flatiron — read The Roebling Team Guide to Flatiron.
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 Infinity Flats?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
646.939.7375 · c.cohen@compass.com