10 Leonard Street

The lot runs 50 feet on Leonard Street and 100 feet deep, and the building covers nearly all of it across seven stories. That gives roughly 4,500 square feet of gross floor plate, and with two to three apartments per residential floor the individual homes land in the range Tribeca buyers recognize as a proper loft — long, columned, and lit from the front and rear rather than from a light court.

Apartment designations tell the plan. Floors that carry a single north and a single south apartment appear as 4N/6N/7N and 5S/6S/7S; floors divided into three carry compass-quadrant labels — 3NE, 4SE, 5NE, 5NW. Renovation filings over the last two decades describe interior partition work, plumbing relocations, new air-conditioning systems and sprinkler modifications apartment by apartment, which is the normal picture in a loft co-op where each shareholder renovates on their own schedule and to their own standard. Condition variance between apartments in this building is therefore wide, and it should be underwritten unit by unit rather than building-wide.

The façade is the constrained element. Inside the Tribeca West Historic District, window replacement, storefront changes, rooftop additions and anything else visible from a public thoroughfare require a Landmarks Preservation Commission permit. Two documented façade restoration campaigns in the last fifteen years suggest a board that has kept up with the cycle; a buyer should still ask for the current Local Law 11 filing status and the engineer's report.

10 Leonard runs as a small, unstaffed-to-lightly-staffed loft cooperative. There is no doorman and no amenity program; the common elements are the entrance, the elevator, the stair and the roof. Maintenance in a building of this size is dominated by three things — the underlying mortgage debt service, heat and water, and the periodic façade cycle — and with only sixteen apartments to spread them across, a single capital project moves the monthly number materially.

The commercial unit at the base is part of the corporation's income picture. Commercial rent in a small co-op is a genuine offset to maintenance, and it is also a risk: a vacancy or a below-market renewal shows up directly in shareholder carrying costs. Ask for the commercial lease term, the current rent, and how the board has budgeted for the next renewal.

The building's financial statements and board minutes are the diligence that matters here. A 16-unit corporation with a $1.8 million underlying mortgage taken in 2016 is, on its face, conservatively levered — roughly $112,000 of debt per apartment. But the maturity date is not published, and a maturing underlying mortgage in the current rate environment is the most common source of an unexpected maintenance increase in small Manhattan co-ops. Get the answer before contract, not after.

None of this building's house policies are published, and we do not infer them. For a cooperative of this size the entire policy stack lives with the managing agent and the board, and the terms below are the ones a buyer must obtain in writing before signing a contract.

Financing ceiling and minimum down payment. Small Tribeca loft co-ops range from permissive to restrictive, and the number is not on the public record here. Ask for the maximum permitted financing as a percentage of purchase price, and whether the board applies a lower ceiling in practice than the by-laws permit.

Post-closing liquidity. Boards in buildings this size typically want to see liquid assets after closing expressed as a multiple of annual maintenance plus debt service. Ask what multiple the board has been applying to recent approvals, not what the by-laws allow.

Board package and interview. Expect a full financial statement, two to three years of tax returns, bank and brokerage statements, employment and income verification, personal and professional reference letters, a landlord or managing-agent reference, and the executed contract of sale — followed by an in-person interview with the board. In a sixteen-shareholder building the interview is not a formality; it is a conversation with a meaningful share of your future neighbors.

Subletting. Ask for the seasoning requirement, the maximum permitted sublet term, whether renewals are granted, and the sublet fee. Small co-ops frequently cap the number of apartments that may be sublet at any one time, which can make an otherwise permissive policy unavailable in practice.

Flip tax or transfer fee. Confirm whether one exists, and if so whether it is charged on gross price, on gain, or per share, and who pays it. This is negotiable in a contract only if you know the number before you write it.

Pied-à-terre, trusts and entities. Not documented. ACRIS shows one apartment taken in the name of a revocable trust in 2023, which establishes that trust ownership has been approved at least once; it establishes nothing about LLC purchasers, corporate purchasers, parents purchasing for children, guarantors, or non-primary-residence use. All of that must come from the managing agent.

Pets and house rules. Not documented. Request the house rules and the proprietary lease with the board package.

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 (2025) cleared a median $1,468/sf across 1 sale. Median listing discount 2.8% 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 1-00179-0021) 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.

You are buying shares, not real property. Your closing is a share transfer with a proprietary lease and a recognition agreement, your lender is making a co-op loan rather than a mortgage, and your approval rests with a board that owes you no explanation. Build the timeline accordingly: contract to closing in a co-op of this size commonly runs 60 to 90 days.

Get the underlying mortgage answer first. $1.8 million consolidated in 2016 across sixteen apartments, with no satisfaction recorded since. The balance, rate and maturity date determine your maintenance for the next decade. Ask the managing agent directly.

Underwrite the façade cycle. Two documented restoration campaigns since 2009 on a landmarked masonry and terra-cotta front. Ask where the building sits in the current Local Law 11 cycle, whether an assessment is contemplated, and what the last two projects cost per apartment.

The commercial unit is part of your carrying cost. Its rent offsets maintenance. Its vacancy would not. Read the lease.

Assemble the board package before you offer. Financing ceiling, post-closing liquidity and the interview are the three places small-co-op deals fail. Run the Co-op Board Qualification Calculator before you write an offer, not after.

Qualify the buyer to the board's standard, not the lender's. In a sixteen-shareholder building, one rejected applicant costs a season. Vet financing, liquidity and the shape of the buyer's income before accepting an offer.

Lead with the loft and the district. An 1885 Kendall warehouse inside the Tribeca West Historic District, with two-to-three-apartments-per-floor plates, is a specific and short list. Market against Tribeca loft inventory, not against Lower Manhattan generally.

Have the building's numbers ready. Serious buyers' counsel will ask for the underlying mortgage terms, the last two years of financials, the commercial lease, and the Local Law 11 status. Answering those in the offering package rather than in attorney review shortens the deal by weeks.

Price condition honestly. Renovation standards vary widely apartment to apartment in this building. An unrenovated loft clears when it is priced to the renovation math; run the Renovation Cost Calculator against your asking strategy.

• 14 Leonard Street — the immediately adjoining building on the same block, a useful direct contrast in ownership form.
• 155 Franklin Street — around the corner in the same Tribeca West fabric, same designation, same loft product.
• 100 Hudson Street — a Tribeca West loft cooperative of comparable scale and buyer profile.
• 1 Hudson Street — small Tribeca loft cooperative, closest match on ownership form and size.
• 16 Hudson Street — nearby loft cooperative in the historic district.
• 47 Hudson Street — Tribeca loft cooperative, similar unit count.
• 134 Duane Street — Tribeca South loft cooperative, comparable date and conversion story.
• 25 North Moore Street — Tribeca West loft building, condominium pricing contrast.
• 145 Hudson Street — Tribeca West loft conversion at larger scale.
• 91 Leonard Street — Leonard Street further east; a new-construction contrast for pricing the corridor.