- Year built
- 1920
- Type
- Cooperative — city records class it as an elevator co-op converted from loft/warehouse stock
- Units
- 44
- Floors
- 5
- Landmark
- No
- Amenities
- Elevator, renovated central laundry, package room and package locker, private storage for rent, bike storage
- Pets
- Pets welcomed per listing records
- Financing
- 80 percent maximum (20 percent minimum down) per listing records — verify current terms
- Flip tax
- Not documented — verify against the by-laws at offer stage
100 West 15th Street is the rare authentic loft co-op at boutique scale on the Sixth Avenue spine: 44 apartments in a five-story converted factory, with the 15-foot ceilings, exposed brick, industrial columns, and arched windows that the downtown loft market prices at a premium — at a corner where Chelsea, Greenwich Village, Union Square, and the Flatiron district meet. The 14th Street subway complex one block south puts the F/M/L/1/2/3 and PATH within a two-minute walk, with Union Square's 4/5/6/N/Q/R a few minutes east. For loft buyers priced out of NoHo and Tribeca, this is the same architectural species at a structurally lower basis.
The building's ownership history is well documented in The Roebling Research Library. The cooperative conversion was first offered in February 1984 — notably as an eviction plan, a now-extinct conversion mechanism — by sponsors Joseph H. Gardner and Peter Weisman doing business as 549 Associates, with 21,000 shares allocated across 44 apartments and a total offering of $4.2 million. City records date the building to 1920 with a major 1987 alteration consistent with the post-conversion residential build-out; listing records carry an older, more colorful lineage — a 19th-century furniture factory of the Coogan Brothers, later a carpet factory and knitting mill — that we treat as unverified.
What distinguishes the building operationally is a documented turnaround. Board communications on file describe a concentrated reinvestment cycle: full gas-line replacement, a rebuilt ventilation system, a new boiler, building-wide security cameras, a virtual-doorman entry system, a refinanced underlying mortgage, and — as of the 2020 communications — reserves around $800,000 with no planned assessments. For a 44-unit self-service co-op, that is an unusually transparent operational record, and it is the kind of documentation that survives a buyer's attorney.
Architecture and unit composition
The building reads as what it is: a five-story brick factory holding the Sixth Avenue corner, with a small commercial space at grade and four-plus floors of lofts above. Inside, the loft vocabulary is intact — ceilings to roughly 15 feet on the best lines, exposed brick, cast-iron-era columns, and arched windows on the avenue exposures. The 44 apartments run from studios through combined two-bedroom-scale lofts, and renovation quality varies widely unit to unit, from preserved-raw spaces to full architect renovations — a spread that shows in closed pricing. With only 45 units across five floors, most lines get genuine light from the corner exposure; the Sixth Avenue side trades street energy for sun.
Building operations
This is a lean, self-service cooperative: no doorman, a virtual-doorman video intercom, a building employee for daily upkeep, and a board that has documented its work in shareholder newsletters on file with us. The amenity set is practical — renovated central laundry, package room and locker, storage for rent, bike storage. Monthly fees are reasonable for the location per listing records, which is the structural payoff of the no-staff model. House rules on file require 80 percent floor coverage, written board approval for alterations with weekday work hours, and homeowner insurance at stated minimums. The offering plan, house rules, sublet policy, board communications, and audited financial statements are on file in The Roebling Research Library.
Local Law 97
This building is below the 25,000 sq ft threshold at which LL97 emissions caps apply. No regulatory capital pressure from this law specifically, current or 2030.
See full Local Law 97 analysis →Recent sales
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Recent transfers 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 |
|---|---|---|
| Apr 23, 2024 | 4E | $505,000 |
| Feb 15, 2024 | 3BC | $1,295,000 |
| Jan 31, 2024 | 1C | $760,000 |
| Feb 17, 2023 | 4H | $569,000 |
| Jun 6, 2022 | 3A | $520,000 |
| Dec 2, 2021 | 4E | $500,000 |
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 1-00790-0040) 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.
What to know if you’re buying
You are buying the loft, the corner, and the carry. Authentic factory architecture, a two-minute walk to nearly every subway line in Manhattan, and self-service monthlies. If those three facts fit your life, little else downtown delivers them together at this basis.
No staff means no staff. Packages run through a locker system, entry through a virtual doorman, and decisions through a small board of neighbors. Buyers coming from full-service buildings should price the trade honestly — in both directions.
The sublet framework is documented and specific. Two-year seasoning, then a maximum of three years out of five, one-to-two-year leases, and a graduated fee of 10/15/20 percent of annual maintenance — per the board's written policy on file. Investors should look elsewhere; flexibility-minded owners get a clear, navigable framework.
The financing posture is accommodating for a loft co-op. Listing records indicate 80 percent financing, with pieds-à-terre and co-purchasing welcomed — materially looser than old-guard co-op regimes. Run the Co-op Board Qualification Calculator before offering and verify current terms.
Underwrite the operational record. The gas-line, ventilation, boiler, and security work is documented in board communications on file, along with the reserve position as of 2020. Your attorney should review the current financial statements against that baseline — the trajectory matters as much as the snapshot.
Renovation is a board process, not a Landmarks process. The building is not landmarked, so envelope constraints are conventional; interior loft renovations need board sign-off per the house rules. Run the Renovation Cost Calculator on raw or dated units.
What to know if you’re selling
Sell the scarcity, specifically. Boutique loft co-ops with 15-foot ceilings at a transit nexus are a thin market on the Sixth Avenue spine. Name the structural facts — conversion history, ceiling heights, the documented capital work — rather than reaching for adjectives.
Position against the Village loft premium. Your buyer is cross-shopping Village, NoHo, and Flatiron lofts at materially higher per-foot pricing. The pitch is like-for-like architecture at a discount, with the same subway map.
Condition transparency wins in a thin-comp building. The renovated-versus-raw spread here is wide and known. Price to condition and line honestly; we support pricing with adjacent-building loft comparables where same-building history is sparse.
Comparable buildings
If you're considering 100 West 15th Street, also evaluate:
- The Mark Twain (100 West 12th Street) — the post-war co-op alternative three blocks south on the same avenue; conventional layouts instead of lofts at a similar entry tier
- 252 Seventh Avenue (The Chelsea Mercantile) — Chelsea's full-service loft condominium; the scale, amenity, and price step-up
- The O'Neill Building (655 Sixth Avenue) — landmark Ladies' Mile cast-iron condo conversion a few blocks north; the trophy-loft alternative on the avenue
- 111 Fourth Avenue — Union Square-side loft co-op; the closest like-for-like east of the square
- 15 Union Square West — glass-over-cast-iron condo conversion; the modern alternative at the square
- 59 West 12th Street — Emery Roth pre-war condominium nearby; the classic-apartment alternative
- 45 East 22nd Street — Flatiron's contemporary tower; the new-development contrast for buyers weighing character against amenities
The Roebling Team at 100 West 15th Street
The Roebling Team at Compass works Chelsea, Greenwich Village, and the Flatiron loft market as a core practice area. We publish this building profile because loft buyers and sellers on the Sixth Avenue spine deserve building-specific intelligence — conversion documentation, policy framework, and loft-stock comparables — not generic neighborhood commentary.
If you're considering a transaction at 100 West 15th Street, a 30-minute consultation is the right starting point.