4 East 70th Street

Sylvan Bien gave the building a streamlined Art Deco face: beige brick laid in clean vertical bands, a Deco entrance surround, and the kind of measured detailing that lets a 1938 building sit comfortably among its older masonry neighbors. At thirteen stories it is taller than the townhouses flanking it but deliberately slim, with a small footprint on a single mid-block lot.

Inside, the apartments are pre-war in feeling: high ceilings, herringbone hardwood floors, decorative moldings, and wood-burning fireplaces in many homes. The original plan ran to gracious individual layouts, and over the decades shareholders have combined units into larger spreads — including duplexes stacked across the upper floors — so that the recorded count of 36 apartments overstates the number of households actually living there today. The result is a varied stack, from comfortable one- and two-bedroom homes to substantial multi-floor residences with Frick and park outlooks.

This is a full-service cooperative. A 24-hour doorman staffs the lobby, a resident manager runs the building day to day, and shareholders have access to a central laundry room, a bicycle room, and private storage that conveys with the apartment. The scale — one mid-block building, a few dozen homes — produces the tight, personal management that buyers on these blocks expect, with low common areas and a board that knows its building intimately.

On policy, the co-op permits 40% financing, allows pieds-à-terre, and admits small pets with board approval. As at most full-service East Side cooperatives, purchases proceed through a board application and interview, and subletting is permitted on a limited basis at the board's discretion. Buyers should plan for the disciplined, financially conservative posture typical of a small Fifth-and-Frick co-op.

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. Most recent trades (2026 to date) cleared a median $991/sf (recorded) across 1 sale. Median listing discount 1.3% 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 1-01384-0065). 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.

The view is the asset, and not all views are equal — the difference between an apartment that looks at the Frick's garden wall and one that looks over it toward the park is the difference that drives price here. Confirm the exact exposure and floor before you anchor on a comparable.

Expect a traditional co-op purchase: a full board package, financials that comfortably clear the 40% financing ceiling, and an interview. The building's small size means the board is selective and the maintenance covers a real staff, so underwrite carrying costs alongside price. For a pied-à-terre or a part-time New York buyer, this is one of the more accommodating Frick-block co-ops, but the home will still be primary-residence quality and priced accordingly.

Lead with the address and the outlook. "Across from the Frick, between Fifth and Madison" is among the most desirable descriptions a Lenox Hill listing can carry, and upper-floor views over a landmarked museum are a genuinely scarce commodity. A Sylvan Bien Art Deco co-op with wood-burning fireplaces and pre-war proportions sells on character as much as on square footage.

Scarcity works in the seller's favor: with so few apartments and such slow turnover, qualified buyers for this block often have few alternatives at any given moment. Price to the specific home — exposure, floor, fireplace, condition, and whether it is a combination — rather than to a generic neighborhood average, and prepare the buyer for the board process early so the application clears cleanly.

If you're weighing 4 East 70th Street, these nearby Fifth-and-Madison cooperatives belong on the same shortlist:

• 10 East 70th Street — pre-war cooperative on the same Frick block
• 1033 Madison Avenue — Madison Avenue cooperative a few blocks north
• 140 East 81st Street — full-service pre-war East Side co-op
• 133 East 80th Street — classic side-street cooperative in the high 70s/80s
• 175 East 77th Street — the Boak & Paris Art Moderne building converted to the 177 East 77th Street Condominium