77 Park Avenue (The Griffon)

The building rises on the east Park Avenue blockfront between 38th and 39th Streets — 14 floors per city records (brokerage records cite 15–16; verify against the floor plans) — with roughly 106 residences running from studios through three-bedrooms. Layout quality is classic Margon & Glaser-era 1920s work: defined foyers, high ceilings, crown moldings and beamed ceilings in preserved units, and the wood-burning fireplaces that anchor the building's marketing in every cycle. Renovation quality varies widely across 106 units and five decades of condo ownership — from preserved-original interiors to full gut renovations with high-end kitchens — so unit-level condition, light, and fireplace presence drive the spread far more than floor count. Avenue-facing units carry the Park Avenue address premium; rear and side exposures trade quieter and lower.

Full-service in the pre-war sense: doorman, concierge, and a service tradition that has included attended elevators since the rental era — the 1973 offering plan on file budgeted seventeen staff, including five elevator operators — supported today by a landscaped roof deck with Empire State and Chrysler Building views, a fitness center, central laundry, bike room, and storage per brokerage records. There is no garage. The offering plan and by-laws are on file in The Roebling Research Library; current financial statements, the staffing model, and the administration of the lease-consent and right-of-first-refusal provisions should be confirmed with the managing agent during diligence.

Recent sales

Recent closings 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 $1,226/sf (floor-adjusted) across 4 sales. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. Median listing discount 4.2% 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 1-00894-0201; each condominium apartment is its own tax lot). 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 from recorded condo declarations and offering plans.

The condo structure is the headline — with an early-condo asterisk. No board interview and condominium transfer mechanics, but the offering plan on file documents a board right of first refusal on sales and board consent for leasing — provisions closer to co-op practice than modern condo norms. Have your attorney confirm how the board currently administers both before you underwrite flexibility, especially for investor or pied-à-terre use.

Buy the unit, not the average. With 106 units across five decades of independent renovation, condition dispersion is wide. A preserved fireplace, a renovated kitchen, and an avenue exposure are each independently priced by this market; same-line history matters more than building-average $/sf.

The service model is the quiet differentiator. A doorman-concierge building with an attended-elevator tradition and a roof deck at Murray Hill pricing is a genuine scarcity. Weigh the payroll-driven common charges against amenity-building alternatives with the True Monthly Carrying Cost Calculator.

Verify the documents, not the folklore. The 1969 conversion date and 127-unit count that circulate in brokerage records are contradicted by the offering plan on file and city records (1973; 106 units). We provide the primary documents to your attorney — small discrepancies like these are exactly what diligence is for.

Price the corridor honestly. Grand Central proximity is the convenience and the caveat: weekday foot traffic on the avenue's commuter blocks is real. Spend time at the entrance at rush hour and on a weekend before deciding.

Lead with the structural scarcity. "Pre-war condominium, lower Park Avenue" is a three-word market thesis — there is almost no competing inventory that offers 1920s proportions, wood-burning fireplaces, and condo transfer mechanics in this corridor. Name it explicitly; your buyer's alternative is a co-op board.

Document the provenance. Margon & Glaser, 1924, Condominium Plan No. 9, the 1973 offering — the building's history is specific and verifiable, and we market it from the primary documents in the Research Library rather than listing-site boilerplate.

Condition and fireplaces drive the spread. Renovated units with working fireplaces and avenue light clear at meaningful premiums; original-condition interiors should be priced to the renovation math. Run the Renovation Cost Calculator against your asking strategy.

Mind the mansion-tax thresholds. The tax starts at $1 million and steps up at $2 million. Run the Mansion Tax Calculator at the intended ask and price around buyer psychology at the thresholds.

If you're considering 77 Park Avenue, also evaluate:

• 67 Park Avenue — the Schwartz & Gross pre-war co-op at the 38th Street corner of the same block; the like-for-like pre-war alternative with attended elevators and co-op mechanics
• 50 Park Avenue — pre-war co-op at East 37th Street; the corridor's other classic pre-war full-service house
• 20 East 35th Street (Goodhue House) — the neighborhood's pre-war condop benchmark off Madison
• 160 East 38th Street (Murray Hill Mews) — the post-war full-service alternative on the same street
• 10 Park Avenue — the corridor's larger pre-war co-op anchor near 34th Street
• 80 Park Avenue — post-war building at 39th Street; the modern-layout alternative directly north
• 35 Park Avenue — post-war full-service co-op two blocks south
• The Morgan Library blocks of the Murray Hill Historic District — the townhouse-scale alternative for buyers trading service for charm