12 West 18th Street (The Randolph)

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. Each apartment occupies roughly half of a fifty-three-foot floorplate; the E/W labels alone do not show whether a home faces the street, the rear of the block, or both, so check the floor plan and window locations for the specific apartment. It is a different product from the full-floor loft: smaller, more conventionally laid out, and generally easier to furnish. 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 records reviewed for this profile do not establish the current classification and permitted use of each of the four lower lots; obtain the operative certificate of occupancy and approved plans for counsel’s review — it matters for anyone buying on the lower floors and for anyone underwriting the building's commercial income.

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.

Beyond transfer subject to the Board of Managers' right of first refusal, the records reviewed here do not establish the building’s current policy terms. Ownership by trusts, corporations and LLCs, 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 governing documents and 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.

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.

Market read. Most recent trades (2025) cleared a median $1,480/sf (floor-adjusted) across 2 sales. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. Median listing discount 3.6% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.

Sales sourced from NYC Department of Finance recorded transfers (BBL 1-00819-7501; 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.

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. The E/W labels alone do not establish whether a home faces West 18th Street, the rear of the block, or both; compare each apartment's floor plan, window orientation and any roof or outdoor rights. Neither line 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.

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. The offering plan was not located in the libraries searched for this profile. Assemble the plan, by-laws, house rules and two years of financials for buyer’s counsel; this can assist diligence without guaranteeing the closing schedule.

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.

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) — nearby building with a comparable unit count; confirm its construction history from primary records
• 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