201 West 70th Street (One Sherman Square)

The building is a brown-and-beige brick tower with strong vertical piers, a broad set-back base and a heavy balcony rhythm — the late expression of the 1960s Upper West Side slab, built when the Broadway blocks between Lincoln Center and the 70s were still being rebuilt. Architectural records and the cooperative's own building history credit S. J. Kessler & Sons, a New York firm with a long apartment-house practice; one architectural database instead credits Der Scutt. We have flagged the conflict rather than resolving it, because the DOB record that would settle it is not digitized.

The unit mix runs from studios and alcove studios through one-, two- and three-bedroom lines, with the largest apartments created by combination. That combination history is exactly why the unit count varies by source: 387 in PLUTO, 378 in the corporation's audited financial statements, 365 in the cooperative's own current materials. The house rules require that a second kitchen created by a combination be dismantled, with the space converted to a closet, a washer/dryer hookup or a wet bar — a wet bar being explicitly defined to exclude a dishwasher, full-size refrigerator, hotplate or microwave. Buyers evaluating a combination should confirm which of those the apartment actually has.

Two other physical facts matter at offer stage. Air conditioning is through-wall; window units are strictly prohibited, so a renovation cannot solve a cooling problem with a window box. And balconies exist only on floors 5 through 42 — the low floors do not have them.

Full-service and union-staffed: 24-hour doorman and concierge, a live-in resident manager, and building employees covered by a Local 32BJ collective bargaining agreement running through April 20, 2026. The circular drive off West 70th Street is a genuine convenience at this scale. Amenities include a private garden and roof deck (no pets, no smoking, no grills), a fitness room governed with a member-run gym committee, a card-operated laundry room open around the clock, bicycle storage and the on-site garage. Residents are administered through a building portal, and management maintains a bed-bug inspection protocol under Local Law 69. The house rules are a formal manual, revised and version-numbered, and they are worth reading in full before contract — they contain the fee schedule, the fine schedule and the alteration rules.

This is the section a buyer should read twice.

Sherman Square Realty Corp. owns the land, the building, the garage and the retail. It does not operate the garage or the retail. On January 4, 1984 — the conversion closing — the corporation entered a thirty-five-year commercial master lease at an annual rent of $485,000, with three renewal options of fifteen years each. The leaseholder exercised the first renewal in 2017; the renewal term commenced January 4, 2019. Two further fifteen-year options remain, which if exercised would run the arrangement well past mid-century. ACRIS shows the leaseholder subleasing pieces of the commercial space — a garage operation, a national chain retail tenancy — through the 1980s and 1990s, which is the normal mechanics of a master lease.

The effect on the building's income statement is direct. For the year ended December 31, 2024 the corporation received minimum base rent of $939,480 under the master lease, plus escalations calculated at 10 percent of increases in defined expenses over a base year, which came to $162,046 in 2024. Total commercial income was $1,101,526 — about 8.5 percent of the corporation's $12.9 million of revenue. Against that, real estate taxes alone were $7,152,629, roughly 55 percent of revenue, on a 2024/25 taxable valuation of $57,136,500.

That is the arithmetic of the building. Maintenance carries the tax bill because the commercial component cannot be repriced to market — it is fixed by a lease signed in 1984 with escalations that track only a fraction of expense growth. It is not a defect, and it is not hidden; it is disclosed plainly in the audited financial statements on file. But it means a buyer should not underwrite this building as though the garage and the storefronts are a lever the board can pull. They are not, for a long time yet.

From the audited financial statements for the years ended December 31, 2024 and 2023:

• First mortgage: original principal $22,600,000, held by an institutional life-insurance lender, fixed at 4.88 percent, on a forty-year amortization schedule with monthly installments of $107,186. It matures December 10, 2028, with a balloon of approximately $18.6 million.
• Second mortgage: $4,000,000 drawn October 18, 2024, interest-only at 6.20 percent, coterminous with the first on December 10, 2028.
• Reserve fund: $5,309,976 at December 31, 2024, up from $1,504,893 a year earlier — the increase is substantially the second-mortgage draw, held in Treasuries, certificates of deposit and money-market accounts.
• Maintenance: approximately $4.76 per share per month in 2024, budgeted at $4.90 for 2025, a 2.95 percent increase.
• Operating assessment: $7.00 per share in June 2024, budgeted at $7.50 for 2025. It is charged in the same month that the co-op/condo real estate tax abatement is posted to eligible shareholders' accounts — the board times the assessment to the abatement, which is worth understanding when you read a monthly carrying-cost statement.
• Capital assessment: $2.00 per share in June 2024, likewise timed to the abatement posting.
• Recent capital work capitalized: exterior restoration and balconies, mailroom and elevator-hallway renovation, garage restoration and roof replacement, heating and boiler upgrades, a fire-alarm upgrade, sidewalk restoration and a plumbing upgrade.
• The corporation holds treasury stock in two apartments; one is used as the resident manager's unit.
• The corporation has not commissioned a reserve study, and its governing documents do not require one — common for a building of this vintage, and worth noting.

So: a well-capitalized building with a real reserve, a modest maintenance trajectory, and a single dated financing event in December 2028 at which roughly $22.6 million of debt has to be extended, refinanced or retired. That date, and the rate environment on it, is the most consequential open variable at One Sherman Square. Any offer here should be underwritten with it in view.

The lot received a J-51 benefit initiated in 1985 — a 90 percent abatement against qualifying alteration costs of $16,100, running with a 12-year (later 14-year) exemption. City records show the abatement running out at approximately $738 in tax year 1996. It has been fully burned off for three decades. There is no J-51 exemption or abatement on this property today, and nothing in the carrying cost of an apartment here is being propped up by one.

The only tax benefit flowing through is the standard Co-op/Condo Property Tax Abatement, which the corporation collects and passes to eligible shareholders — $464,425 payable at December 31, 2024 — and which, as above, the board recaptures through its annual operating and capital assessments.

Every line below comes from the current house rules on file in The Roebling Research Library or the audited financial statements; none of it is published by the building, and all of it should be re-confirmed with the managing agent at offer stage, because a board can change policy at any time by resolution.

• Board approval: required. A prospective purchaser must satisfy the board as to suitability, with a full application — employment and salary verification, two years of federal returns, a statement of net worth, and two personal and two financial reference letters — and full board review.
• Financing: 75 percent maximum, fixed for at least the first three years, institutional lenders only. All financing requires a recognition agreement in a form acceptable to the corporation.
• Post-closing liquidity: the house rules do not publish a numeric post-closing requirement. Boards at this size and financing posture typically apply one. Ask the managing agent for the board's current financial guidelines before you write an offer.
• Working capital contribution: three months of maintenance plus capital assessment, paid by the purchaser at closing. This is the building's transfer charge; there is no separate percentage flip tax.
• Subletting: discouraged; permitted for demonstrated need; three years out of five maximum; two months' maintenance and capital assessment per year as a sublet fee; short-term rental platforms prohibited.
• Pied-à-terre: listing and management-sourced records describe pied-à-terre purchases, co-purchases and gifting as permitted with board approval. This is not stated in the house rules on file, so treat it as board practice rather than written policy, and confirm it before offering.
• Trusts and entities: trust purchases are permitted case by case with legal review, board approval and a trust consent agreement. We have seen nothing permitting an LLC or corporate purchaser; assume individual ownership unless management says otherwise.
• Alterations: governed by an alteration agreement and engineer review; material deviation from approved plans carries a $5,000 fine per violation.

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. $/sf is measured on the latest sales with reliable square footage (2025): a median $1,240/sf across 2 sales. The building has traded as recently as 2026. Median listing discount 1.4% 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 1-01162-0029) 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.

Underwrite December 2028. Roughly $22.6 million of first and second mortgage debt matures on the same day. The building's reserve is healthy and its maintenance trajectory is modest, but the refinancing is the live variable. Ask your attorney to read the mortgage notes and the most recent board minutes, and ask management what the board's plan is.

Understand the master lease before you price the garage. The commercial component is fully let under a 1984 master lease at a base rent that is fixed, with escalations limited to 10 percent of expense growth over a base year, and with two fifteen-year renewal options still outstanding. The garage and the storefronts are not a future maintenance offset. Real estate taxes are about 55 percent of the corporation's revenue and maintenance is what carries them.

The financing ceiling is 75 percent and it is not negotiable. Fixed rate for three years minimum, institutional lender, recognition agreement. Get the loan structured correctly before the board package, not after.

Read the sublet policy if you have any thought of renting. Three years out of five, demonstrated need, two months' maintenance per year in fees, and a real penalty regime for doing it without approval. This is not an investor's building.

Budget the working capital contribution. Three months of maintenance plus capital assessment, buyer-paid, at closing. Run it through the Buyer Closing Cost Calculator alongside the assessment schedule, not after.

Check the balcony and the exposure, then check the second kitchen. Balconies start on 5. Combinations must have had the second kitchen dismantled. Both are five-minute questions that change the price.

Lead with carry, not just price. In a building where taxes are the dominant expense line, buyers are comparing monthly numbers across the corridor. Present maintenance, the operating assessment and the capital assessment together, and explain the abatement timing — most buyers do not understand that the assessments are charged in the abatement month.

Get ahead of the 2028 maturity. Buyers' attorneys will find it. A seller who can hand over the audited financials and describe the reserve position and the board's plan converts a question into a non-issue. We supply those documents from the Research Library to serious buyers' counsel.

Price the line, not the building. With 378 apartments, comparables inside the building are abundant and buyers will find them. Balcony, floor, exposure and renovation are the four variables; be honest about all four and the apartment clears.

Prepare the buyer for a real board package. Tax returns, net worth statement, four reference letters, full board review and a 75 percent financing ceiling. Screening a buyer's financing structure before accepting an offer is the single highest-return thing a seller does here.

If you're considering One Sherman Square, also evaluate:

• 230 West End Avenue — the 1927 co-op two blocks west; the pre-war alternative on the same blockfront
• 243 West 70th Street — a mid-1920s co-op on the same block; boutique scale, same corner
• 155 West 70th Street — the 1990 condominium two blocks east; the condo alternative in the same micro-market
• 135 West 70th Street — the Pythian; the loft-scale condo conversion nearby
• 2000 Broadway — the Copley, 1987; the Broadway-corridor condo comparison
• 15 West 72nd Street — Mayfair Towers, 1964; the closest like-for-like in scale, staffing and post-war co-op economics
• 160 West End Avenue and 170 West End Avenue — Lincoln Towers; large-scale share ownership in a condominium wrapper, a useful structural contrast
• 245 West 74th Street — a 1990 conversion of a 1920s building; the smaller-scale co-op alternative
• 120 West 70th Street — the 1917 co-op on the same street; the pre-war boutique end of the block