142 Duane Street

Seven stories of Italianate store-and-loft construction — masonry with marble, cast iron and stone per LPC's materials record — on a 41-foot Duane Street frontage running 109 feet deep. The building is narrow and deep, which produces long floor-through lofts rather than the wide half-floor plates of the larger SoHo buildings.

Nine apartments were offered in 1997 across floors two through seven, with two penthouse residences at the top; city records now count eight residential units, consistent with one combination. Recorded share transfers run 2B, 3A, 3B, 4A, 4B, PHA and PHB. One penthouse is a substantial residence with private terraces; its shares were held by the sponsor and marketed for more than a decade before they transferred in July 2024.

The roof was built out. LPC issued a Certificate of Appropriateness for a rooftop addition on a 2011 docket, amended in 2013, and DOB filings from October 2011 describe a steel-framed pergola awning and a pool at the roof — an unusual amenity for an eight-unit Tribeca loft building, and one that should be inspected and its maintenance obligation confirmed.

This is the section to read twice.

You are buying shares in 142 Duane Street Owners Corp. together with a proprietary lease to a specific apartment. ACRIS confirms the cooperative form at the transaction level: unit transfers here record as property type SP — single residential coop unit share transfers, not as deeds, and the ground-floor transaction records as CP — commercial cooperative unit.

What the corporation owns is a leasehold, not the land. Per the offering plan on file:

• The corporation acquired the sponsor's leasehold interest under a ground lease dated February 27, 1997.
• The ground lease has an initial term of 48 years, running to roughly 2045, with a lessee option to renew for a further 48 years, to roughly 2093.
• It is a net lease: in addition to ground rent, the corporation pays all real estate taxes assessed against the property and all operating, maintenance and repair expense.
• The annual rent for the first year was $158,736, adjusted each January 1 by reference to the Consumer Price Index for All Urban Consumers.
• The plan states that at the renewal term's expiry the corporation would need to negotiate an extension, enter a new ground lease, or purchase the property in order to retain its interest.
• At closing there was to be no mortgage on either the leasehold or the property, and the corporation retains the right to mortgage its leasehold interest.

The public record is consistent with all of it. ACRIS shows no deed conveying fee title to the cooperative corporation; the corporation appears in the record exactly once, as lessee under a lease recorded July 10, 1998. Fee ownership sits with a private family trust group that has held the property since the 1960s.

Three consequences follow, and they are the reasons this building prices where it does:

Financing is different. Many lenders treat leasehold cooperatives as a distinct product, and some will not lend at all when the remaining term is short relative to the loan. The renewal option, and whether it has been or will be exercised, is a live underwriting question. Establish your lender's position before you sign a contract, not after.

The rent escalates. A CPI-indexed ground rent set at $158,736 in 1997–98 has been adjusted annually for nearly three decades. Some market descriptions of this building assert that there are no scheduled increases through the 2090s; that is not what the plan on file provides, and the two statements cannot both be right. Get the current ground rent figure, the escalation mechanism as it actually operates today, and any amendment to the ground lease, in writing from the managing agent before making an offer.

The horizon is finite. The renewal term runs to roughly 2093. That is far out, but it is not perpetual, and it is the reason leasehold buildings trade at a discount to fee-owned comparables with otherwise identical apartments. Price the discount deliberately rather than treating it as a bargain.

None of this makes the building a bad purchase. Leasehold cooperatives trade every day in Manhattan, and low or no underlying mortgage debt — which appears to be the case here — offsets part of the structure. It makes it a purchase that requires a lawyer who has done one before.

For an eight-residence cooperative the operating footprint is small, and the capital record is legible from the landmark and buildings files:

• 1997–1998 — Certificates of No Effect for interior alterations and windows, a permit for restorative work, status-update letters for the rooftop addition, and a Modification of Use in November 1998 as the residential conversion was authorized.
• 2001–2006 — general construction on the upper floors, permitted March 2002 and signed off August 2006; new boilers installed under a 2006 filing.
• 2008 — retail space demolition and build-out at the ground floor, with sprinkler and structural work.
• 2011–2013 — the rooftop addition Certificate of Appropriateness and the pergola-and-pool filing.
• 2016 — a Certificate of No Effect for windows; rear-elevation windows reopened under DOB filings the same year.
• 2018–2022 — renovation of the cellar, ground-floor and mezzanine retail space, signed off August 2022.
• 2023 — a Certificate of No Effect covering repointing, facade painting, repair of cast and wrought iron and other extruded ornamental metals, repair of natural and cast stone, and replacement of deteriorated brick, stucco and sheet metal. That is a full facade cycle on a landmarked masonry-and-iron front.
• 2024–2025 — rooftop and through-wall mechanical permits.

The absence of a recorded underlying mortgage is the striking financial fact. A cooperative that has funded a facade cycle, a rooftop build-out and a conversion without recorded first-lien debt is either well capitalized, assessment-funded, or both. Ask which. Ask for the reserve balance, the assessment history, and the current ground-rent line in the budget — in a leasehold cooperative, ground rent is typically the largest single item in the operating statement, and it is the number that moves maintenance.

The commercial unit is separately owned, and roughly 4,800 square feet of the building's income-producing area therefore sits outside the corporation's control. Confirm its share allocation, its maintenance obligation and its payment history.

Treat the published policy stack as unverified. The building is widely described in market materials as operating under condominium-style rules — no board approval, unrestricted subletting from day one, pied-à-terre ownership permitted. That characterization does not appear in the offering plan on file, and the plan's own language points to a narrower explanation: holders of unsold shares are expressly relieved of transfer fees including a flip tax, administrative and processing fees, and legal fees on any assignment, transfer, sublease or alteration. That is a standard sponsor provision, and sponsor units genuinely do transfer without board consent in most cooperatives. It is not the same thing as a building-wide waiver, and with the sponsor's last penthouse shares having transferred in 2024, whatever practice attached to unsold shares may no longer be available.

The same clause implies the corollary: a transfer fee or flip tax applies to transfers that are not by a holder of unsold shares. Its rate and base are not published.

Obtain the proprietary lease, the by-laws, the house rules and the current financial statement from the managing agent, and confirm in writing: whether board approval and an interview are required for your purchase; the financing ceiling and minimum down payment; post-closing liquidity expectations; the sublet policy and any sublet fee; pied-à-terre treatment; whether trusts and limited liability companies are entertained; and the flip tax rate and who pays it. Do not price an offer off a listing description of any of these.

Landmark review governs the exterior. Windows, storefront and street-visible rooftop equipment go through LPC; visible changes require a Certificate of Appropriateness. Build the review into any renovation timeline.

Recent sales

Recent transfers 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.

Market read. Most recent trades (2026) cleared a median $2,193/sf across 1 sale. Median listing discount 5.6% 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 1-00146-0018) 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 on co-ops is not officially recorded, figures shown are approximate.

Engage a lawyer who has closed a leasehold cooperative. This is not a preference. The ground lease, its renewal mechanics, the rent escalation, the corporation's obligations as net lessee, and the remedies on default are the deal. A general residential closing practice is not sufficient.

Get your lender's written position before contract. Many lenders treat leasehold cooperatives differently, and some decline them. Establish loan-to-value, term and pricing against this specific structure early — a financing failure here is expensive and avoidable.

Get the current ground rent number. The plan sets first-year rent at $158,736 with annual CPI adjustment. Market descriptions saying there are no scheduled increases contradict the plan. Resolve the contradiction in writing with the managing agent and price the real figure into your carrying cost. Run the True Monthly Carrying Cost Calculator with the real maintenance line, not an estimate.

Do not assume there is no board. Verify whether board approval and an interview apply to your purchase. The "condominium-style rules" description in circulation is most consistent with the sponsor's unsold-shares exemption, and the sponsor's last shares transferred in 2024. Prepare a full package unless the managing agent confirms otherwise in writing — the Co-op Board Qualification Calculator is the right starting point.

Ask what funded the capital work. There is no recorded underlying mortgage, yet the building completed a facade cycle in 2023 and a rooftop build-out in the 2010s. Assessments are the likely answer. Ask for the assessment history and the reserve balance.

Inspect the roof program. A pool and pergola on a landmarked 1859 building is a maintenance obligation and a leak risk. Confirm its condition, its warranty status and who pays for it.

Lead with the structure, not around it. The leasehold will surface in the buyer's attorney's first hour. Sellers who present the ground lease, the current rent, the renewal terms and the corporation's debt position upfront hold their price; sellers who let a buyer discover it get re-traded.

Assemble a lender list. The single largest source of failed deals in a leasehold cooperative is financing. Knowing which lenders have closed in this building, and providing that to buyers, materially shortens the deal.

Correct the construction date and the policy description. The tax roll says 1920; LPC says 1859–1860. And the "condo rules" shorthand in circulation is, at best, imprecise now that the sponsor's shares have transferred. Accurate materials survive diligence.

Document the 2023 facade cycle. The repointing, ironwork and stone repair permitted that year is exactly the record a diligent buyer's counsel looks for in a 165-year-old landmarked building. Provide it.

If you're considering 142 Duane Street, also evaluate:

• 134 Duane Street — loft cooperative on the same block; the closest like-for-like on street, era and ownership form
• 137 Duane Street — loft condominium directly opposite; the tenure alternative
• 166 Duane Street — Duane Street loft condominium at comparable boutique scale
• 100 Reade Street — Tribeca loft building one block south with similar plate proportions
• 97 Reade Street — small landmarked Tribeca loft building
• 52 Thomas Street — boutique Tribeca loft conversion nearby
• 87 Chambers Street — Tribeca loft building at similar unit count
• 55 White Street — landmarked Tribeca loft building; the historic-district comparison
• 90 Franklin Street — Tribeca loft condominium with floor-through plans
• 155 Franklin Street — boutique Tribeca loft building; the value-tier comparison