56 Warren Street

The apartments are true lofts. Two per floor on floors two through five, lettered East and West — the pairing is confirmed by recorded share transfers and by decades of DOB alteration filings on individual units. Ceilings are high, windows are oversized on both the Warren Street elevation and the rear, and interiors typically retain exposed brick, timber structure and wide-plank flooring. Because the lot is nearly 46 feet wide and 100 feet deep, the plates are broad rather than narrow, which is what allows two genuinely separate apartments per floor rather than the long shotgun layouts common in narrower Tribeca loft buildings.

Renovation activity in the building has been steady and unit-by-unit rather than building-wide: individual apartment gut jobs appear in the DOB record across 2005, 2006, 2007, 2008, 2010, 2012, 2013, 2014 and 2020. Several carry per-apartment boilers and independent mechanical systems, which is worth understanding before underwriting a purchase — heating and cooling responsibility in a building like this is often unit-level, not central.

The rear elevation abuts development on West Broadway; a 2007 DOB filing at this address was made in conjunction with new construction at the adjoining 85 West Broadway site. Rear light and air on this lot should be checked window by window rather than assumed.

This is a self-managed-scale building run through a managing agent, with a part-time superintendent and no doorman. Amenity is minimal by design: a passenger elevator, intercom entry, and oversized basement storage assigned per apartment. What the building spends money on instead is fabric. The DOB record shows rear-façade repair in 2012, sidewalk and vault reconstruction in 2015, an alteration filed in 2016 for structural steel framing to carry a landscaped roof deck (a filing that required a new certificate of occupancy), and a domestic water booster pump system filed in March 2026. Boiler work in individual apartments appears in 2020 and 2021.

An underlying mortgage of $500,000 was recorded against the cooperative in October 2002 with a cooperative-specialist lender, with assignments recorded in 2002 and 2003. That is a small underlying debt by Manhattan co-op standards, but it is more than two decades old and the current balance, rate and maturity should be read out of the audited financial statements rather than inferred from the recorded instrument.

Ownership form: Cooperative. Purchase is a share transfer accompanied by a proprietary lease, with a full board package and interview.

Everything else is unpublished. We could not verify a flip tax, a financing ceiling, a sublet policy, a pied-à-terre position, or a pet policy for this building from any source we are prepared to stand behind. Have counsel reconcile current rules and management responses with the operative proprietary lease, bylaws, plan and valid amendments; board authority depends on those documents. Request them in writing from the managing agent before you make an offer, not after.

Recent sales

Recent transfers 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. $/sf is measured on the latest sales with reliable square footage (2023): a median $1,481/sf (recorded) across 1 sale. The building has traded as recently as 2024. Median listing discount 1.6% 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 1-00136-0012). 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 on co-ops is not officially recorded, figures shown are approximate.

Get the policy stack in writing first. Flip tax, financing ceiling, post-closing liquidity expectation, sublet rules, pied-à-terre position, and whether trusts or LLCs are entertained — none of it is published. Current board practice does not by itself supersede the operative lease, bylaws or valid amendments. Ask the managing agent for the current house rules, the sublet policy, and the most recent two years of audited financials before you write an offer, and run the Co-op Board Qualification Calculator against whatever ceiling comes back.

Eight shareholders is the risk and the appeal. Capital assessments in a building this size are shared among few apartments. Read the reserve position and the retail lease terms together — the net retail income may offset charges, but its actual contribution requires current accounts, and its renewal date is a number you should know.

The Loft Law question is open. DOB filings from 2003 through 2008 carry a Loft Board indicator and later filings do not. We could not confirm whether any apartment ever held Interim Multiple Dwelling status. If it matters to your unit, have counsel ask the Loft Board and the managing agent directly.

Landmark designation constrains the exterior. The building sits in the Tribeca South Historic District Extension. Exterior alterations, including window, storefront and roof changes, generally require LPC permits; eligible work may receive staff approval and ordinary maintenance may be exempt. Confirm DOB requirements for the actual scope. The 2016 roof-deck filing is a useful precedent to ask about — including whether the resulting certificate of occupancy was ever issued.

Verify the elevator, then verify the tax class. The Department of Finance carries this lot as building class C6, a walk-up cooperative code, while market records describe a passenger elevator. Check an identified valuation model's actual inputs and comparables before relying on its estimate; a disputed classification alone does not prove an incorrect output.

Lead with the two things that are structurally scarce: a designated 1880s store-and-loft envelope with two apartments per floor, and cooperative-owned retail income in an eight-unit building. Both are verifiable and neither can be replicated by newer inventory nearby.

Correct the record before a buyer's attorney does. PLUTO's 1915 year-built and C6 building class are both misleading here. Present the LPC record — 1880–1881 and 1887–1888, M. G. Lane and John B. Snook & Sons — up front.

Assemble the diligence package early. The reviewed materials do not establish all policies. Obtain the financials, operative house rules, sublet policy and current retail lease summary early so counsel can identify outstanding diligence questions.

If you're considering 56 Warren Street, also evaluate:

• 12 Warren Street — nearby Warren Street conversion on block 135; the condominium alternative a short walk east
• 8 Warren Street — the Trinity Stewart Condominium, also block 135; boutique Tribeca condo with a different policy framework
• 41 Warren Street — The Admiral Warren, block 133; loft condominium at similar scale
• 37 Warren Street — Warren Lofts; the closest like-for-like loft building by size and street
• 9 White Street — small prewar Tribeca loft cooperative; the nearest peer on ownership form
• 142 Duane Street — boutique Tribeca loft co-op in a designated district
• 134 Duane Street — Main Duane; small co-op with comparable staffing and amenity posture
• 10 Leonard Street — landmarked Tribeca loft cooperative of similar vintage
• 105 Chambers Street — The Cary Building; the Civic Center-edge landmark alternative
• 85 West Broadway — the immediately adjoining West Broadway building; useful for understanding rear exposures