12 West 18th Street (The Randolph)
12 West 18th Street, New York, NY 10011
Flatiron
BBL 1008197501 · BIN 1015429
- Year built
- 1885
- Type
- Condominium
- Units
- 14
- Floors
- 9
- Landmark
- Designated
Every recorded sale at this building, 2004–2025
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf
- $1,486
- Listing discount
- 3.6%
- Recorded sales
- 28
- On record
- 2004–2025
Almost every loft building in the Ladies' Mile Historic District tells the same story in the same order: built as a store-and-loft for the dry-goods trade, worked hard for eighty years, emptied out, and converted to apartments in the 1980s. 12 West 18th Street tells it backwards. LPC's own building database records the original use as residential, multi-family, the original building type as an apartment building, and the original owner-developer as The Randolph Company — the source of the name it carries today. It was built in 1885 by F. M. Clark as an apartment house on a block that was about to become the northern edge of New York's department-store district, and it lost that use rather than acquiring it.
The physical record of what happened next is preserved in LPC's notes and in the shape of the building. A full ninth story was added between 1889 and 1891 — LPC lists Henry J. Hardenbergh, whose Dakota was seven years old and whose Plaza was still ahead of him, as an alteration architect of that period. Then, in 1911–12, the front wall was taken off entirely and a new façade rebuilt on steel columns, an alteration LPC attributes to Gronenberg & Leuchtag. Removing and rebuilding a street wall is not a cosmetic job; it is what you do when you are converting a residential building to commercial loft space and need column-free floors and large windows. From that point the building worked as stores and lofts for seventy years.
The conversion back to apartments is dated precisely by the tax record. The Department of Finance's J-51 roll shows a rehabilitation grant with an initial year of 1984 running against fourteen unit lots — 1005 through 1018, which are the residential floors from the third story up. That is the alteration that created the residential use, and it was structured the way loft conversions of that generation almost always were: a J-51 exemption and abatement in exchange for the rehabilitation work, twelve years at 50 percent, extended to fourteen, expiring after tax year 1997. The four lower lots were left out of the grant because they stayed commercial. The condominium apportionment on the tax roll follows in 1988.
There is a small forensic detail in that same record worth mentioning, because it explains the building's present unit count. Lot 1006 — the third-floor west unit — dropped off the J-51 roll after tax year 1987 while its thirteen neighbours ran on to 1997. It reverted to office use. In April 2014 the condominium filed job 121944646 to "convert one existing office at the third floor to one apartment (Apt 3W)" and amend the certificate of occupancy, carrying the building from thirteen dwelling units to fourteen; the certificate was amended through a series of issuances between 2016 and 2019. The fourteen residential units PLUTO carries today are the thirteen that survived the 1984 conversion plus 3W, restored thirty years later.
Finally, a note on the block, because a sibling building here is easily confused with this one. 15 West 17th Street sits on lot 7504 of this same tax block, backing onto the same interior. It is a genuinely different building and a different proposition: 1906–07 rather than 1885, by William G. Pigueron, Beaux-Arts rather than neo-Renaissance, built as store-and-lofts rather than as apartments, eleven stories rather than nine, ten full-floor units rather than fourteen east/west pairs, converted in 2007 rather than 1984, with Loft Board indicators on its early filings and no J-51 at all. This building has the opposite profile on every one of those points. They share a block and nothing else.
Architecture and unit composition
Nine stories of limestone with cast iron, brick and a metal cornice, fifty-three feet wide, on a ninety-two-foot lot — LPC classes the style as neo-Renaissance and dates the fabric to three campaigns: the 1885 original, the ninth story of 1889–91, and the 1911–12 street wall on steel columns. The 1911 rebuild is why the façade reads more openly than most 1880s buildings on the block, and it is the reason the apartments behind it have the window line they do.
Above the commercial floors, the residential units are arranged in east/west pairs — 3E and 3W, 4E and 4W, and so on to 9E and 9W. That layout gives every apartment a single primary exposure, front or rear, across roughly half of a fifty-three-foot floorplate. It is a different product from the full-floor loft: smaller, more conventionally laid out, and generally easier to furnish, at the cost of the through-block light that full-floor buyers are usually paying for. The ninth-floor units sit under the 1889–91 addition and have historically carried roof access; DOB filings from 2000 and 2002 cover a glass-and-metal roof bulkhead and convenience stairs to the roof at units 9E and 9W, together with roof railings and fencing.
The four non-residential lots occupy the ground and second floors — PLUTO splits the commercial area into 2,675 square feet of retail and 3,500 of office. The ground-floor retail has been a food use in recent years; a 2018 DOB filing legalized an existing pizza oven and walk-in cooler in response to an environmental control board violation. Two of the lower lots traded in 2024 and 2025 at prices consistent with residential rather than commercial pricing, which suggests some of that lower space has been put to residential-style use. The exact current classification and permitted use of each of the four lower lots is not resolvable from the public record and should be confirmed with the managing agent — it matters for anyone buying on the lower floors and for anyone underwriting the building's commercial income.
Building operations
This is a small, low-overhead condominium: fourteen residential units, one elevator, no doorman and no amenity program. Publicly documented capital work over the past fifteen years reads as steady rather than dramatic — a boiler and burner conversion from oil to gas in 2003, sidewalk vault repair and sidewalk replacement in 2011, chimney repair in 2012, façade repairs in 2014, and a full roofing system and parapet wall replacement in 2019. The building carries the ordinary obligations of a landmarked nine-story building on a Ladies' Mile block: Local Law 11 façade cycles, LPC review for any exterior work, and the maintenance burden of an 1885 structure with a 1911 street wall.
No offering plan for this condominium was located in either the Compass Offering Plan Library or The Roebling Research Library. That is a real gap and it is worth stating plainly: the plan is the document that would settle the common-charge allocation between the residential and commercial units, the by-laws, the right-of-first-refusal procedure, and whatever the sponsor reserved in 1984–88. We source it on request during diligence, and a buyer's attorney should insist on it along with the two most recent audited financial statements and the current budget.
Policy framework
Beyond the standard condominium framework — unrestricted ownership by individuals, trusts, corporations and LLCs, and transfer subject to the Board of Managers' right of first refusal — nothing about this building's policy stack is published. Pets, sublet notice and approval procedure, alteration agreement terms, move-in fees, storage, bicycle room and any resale capital contribution are all set by the board and change over time. Obtain the current house rules, the by-laws and the alteration agreement from the managing agent before you write an offer, and confirm the common-charge split between the residential and commercial units, which is the single most consequential number in a mixed condominium of this size.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $0 (under cap)
- Per unit / month range
- —
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City record last verified September 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. Facade inspections run on a fixed five-year cycle; future inspection, repair, and any assessment decisions remain building-specific.
How to read this, and where it comes from
QEWI = Qualified Exterior Wall Inspector — the licensed engineer the city requires to sign 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 record last verified September 2026.
Recent sales
12 West 18th Street trades as a Ladies' Mile loft condominium at boutique scale. The residential units have changed hands repeatedly since the conversion, in arm's-length resales to separate, unrelated purchasers running from the mid-2000s through 2025, with several units trading two and three times over that span. Both the residential and the commercial lots are held individually rather than in a single ownership, and the residential lots are assessed as condominium units rather than as class RR rentals — this is a genuine for-sale condominium, not a rental in a condominium wrapper.
Pricing here should be read in dollars per square foot against the Flatiron and Ladies' Mile loft conversion stock rather than against new development, and east-facing and west-facing lines should be compared separately. The absence of any tax abatement means carrying costs are directly comparable to other mature buildings without adjustment, which is not true of newer Chelsea and Flatiron condominiums. Index any market statement to the last complete year. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
Recent closings at this building, curated by The Roebling Team research desk. 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 |
|---|---|---|---|---|---|
| Mar 14, 2025 | 9W | 2 BR · 2 BA · 1,750 sf | $2,700,000 | $1,543/sf | -1.8% |
| Jan 31, 2025 | 6E | 2 BR · 2 BA · 1,750 sf | $2,500,000 | $1,429/sf | -9.1% |
| Dec 10, 2024 | 8W | 2 BR · 2 BA · 1,750 sf | $2,229,000 | $1,274/sf | -0.9% |
| Jun 25, 2024 | 1W | 1,375 sf | $1,750,000 | $1,273/sf | off-mkt |
| Oct 24, 2023 | PHE | 2 BR · 2 BA · 1,800 sf | $3,400,000 | $1,889/sf | -2.7% |
| Apr 20, 2021 | 6E | 2 BR · 2 BA · 1,750 sf | $2,425,000 | $1,386/sf | -5.8% |
| Feb 24, 2020 | PH9E | 2 BR · 2 BA · 1,800 sf | $2,999,999 | $1,667/sf | +0.2% |
| Jun 26, 2018 | 7E | 2 BR · 1,750 sf | $2,825,000 | $1,614/sf | -19.2% |
Market read. Most recent trades (2025) cleared a median $1,486/sf across 2 sales. Median listing discount 3.6% 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 1-00819-7501) 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; square footage from recorded condo declarations and offering plans.
What to know if you’re buying
The J-51 is long gone, which is good news. Loft conversions of this generation frequently still carry buyers into a tax step-up. This one does not — the benefit expired after tax year 1997. What you see on the current bill is the mature number.
Get the offering plan and the commercial allocation. Fourteen residential units share a building with four commercial lots. How common charges and real estate taxes are allocated between them, and what the commercial units are permitted to do, is the difference between a quiet building and a difficult one. This is the first question, not the last.
Understand which unit line you are buying. East and west units face opposite directions across a mid-block lot. Rear units look into the interior of the block; front units face West 18th Street. Neither is inherently better, but they are different apartments and they should not be priced as interchangeable.
Landmark review governs anything exterior. Windows, storefronts, rooftop additions and even railings on a Ladies' Mile building require LPC review. If your renovation plan touches the envelope, price the approval time as well as the work. Run the Renovation Cost Calculator with that in mind.
Confirm 3W's paperwork if you are buying it. The third-floor west unit was converted from office back to residential use between 2014 and 2019 under an amended certificate of occupancy. That work is signed off, but a purchaser should have counsel confirm the certificate reflects it.
What to know if you’re selling
Lead with the history, because it is genuinely unusual. An 1885 apartment house on Ladies' Mile, a ninth story attributed to Hardenbergh, a 1911 street wall on steel columns, and a return to residential use a century later. That is a better story than "loft conversion," and it is documented in LPC's own database rather than in marketing copy.
Have the building's documents assembled before you list. With no offering plan in general circulation, the seller who can hand a buyer's attorney the plan, the by-laws, the house rules and two years of financials removes the main source of delay in this building.
Price against the pair layout, not the full-floor stock. Buyers comparing this building against full-floor Ladies' Mile conversions are comparing different products. Position it on its own terms — scale, ceiling height, light, condition — and against the east/west loft stock that actually competes with it.
Comparable buildings
If you're considering 12 West 18th Street, also evaluate:
- 15 West 17th Street — the other condominium on this same tax block; a 1906–07 store-and-loft with full-floor units, converted in 2007. The closest neighbour and the clearest contrast
- 32 West 18th Street (Altair 18) — also on Block 819, a few doors west; the newer condominium alternative on the same street
- 14 West 17th Street — the cooperative comparison in the same Ladies' Mile loft stock
- 113 West 17th Street — Flatiron loft condominium conversion of comparable scale
- 16 West 19th Street (Jade) — Ladies' Mile loft building one block north
- 27 West 19th Street (The Emory) — loft conversion with a comparable unit count
- 105 Fifth Avenue (The Folio House) — the Fifth Avenue loft alternative two blocks north
- 108 Fifth Avenue — Ladies' Mile loft ownership on the avenue
- 129 Fifth Avenue — the boutique Fifth Avenue conversion comparison
- 111 West 16th Street — the boutique alternative two blocks south
- 126 West 16th Street — small Chelsea condominium at similar scale
The neighborhood
For the full corridor — architecture, schools, 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.
Considering a move at The Randolph?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at The Randolph 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.