420 East 75th Street

ARC Architecture + Design Studio designed a light-gray brick facade with a grid of recessed windows and long balconies on the north elevation, rising seven stories to a roof deck. The developer first planned to keep two existing two-story buildings as the base and build above them; that scheme was dropped for ground-up construction. An earlier Department of Buildings filing for the site showed 10 apartments. The plan as accepted has six.

Published construction reporting gives an average of about 1,525 square feet per home, which reads as an allocation of gross area. Listing records show larger interiors: 2,350 square feet for Unit 2 and 2,117 square feet for the penthouse, which adds a roughly 300-square-foot north-facing terrace and a south-facing balcony off the primary suite. Confirm each home's interior and exterior area against Schedule A, which Amendment 2 replaced along with the floor plans and unit designations.

Finishes in published materials include Shinnoki-paneled cabinetry, Calacatta Caldia marble counters, Wolf, Sub-Zero and Cove appliances, a walk-in pantry with trash chute, pocket doors, programmable lighting, radiant-heated primary bath floors and in-unit laundry.

Per the offering plan filed with the New York State Attorney General (plan CD230323), the plan was submitted November 30, 2023 and accepted May 29, 2024 at $28,665,000 for six residential units. Amendment 1 declared it effective on June 18, 2025, with one unit, or 16%, in contract; it also issued a new Schedule A, updated real estate taxes and offered storage space licenses. The database still records one unit sold, while ACRIS shows two sponsor closings in 2026. Amendment 2, accepted February 9, 2026, carried a new Schedule A, revised floor plans and the temporary certificate of occupancy. Amendment 3, accepted August 6, 2026, updated the temporary certificate and noted a $5,000 escrow for permanent certificate of occupancy items.

Published asks and recorded sales, as of October 2026:

• Unit 2: launched at $3,995,000 in February 2025 for 2,350 square feet, about $1,700 a square foot; listing records later show $4,195,000, about $1,785 a square foot.
• Unit 4: asked $4,395,000; listing records show it went into contract in April 2026 and came off the market in June 2026. No deed is recorded.
• Unit 5: closed at $4,565,000, deed dated April 7, 2026 (ACRIS).
• Unit 6: closed at $4,879,000, deed dated May 29, 2026 (ACRIS). Listing records report $4,735,000 for the same closing; the deed figure may include an accessory room or other consideration.
• Penthouse: asking $4,495,000 for 2,117 square feet, about $2,123 a square foot, down from $4,750,000 (about $2,244). Listing records show common charges of about $2,076 a month and real estate taxes of about $2,018 a month.

The asks sit between about $1,700 and $2,250 a square foot, with the penthouse's outdoor space carrying the premium. The Attorney General record still shows one unit sold; ACRIS shows two closings.

Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.

Recent sales

Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01469-7503; 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.

The plan is effective. Contracts are binding and closings are occurring. Read Amendments 2 and 3 with the plan: unit designations, floor plans and Schedule A changed after acceptance.

Closing costs. In sponsor sales the buyer customarily pays the New York State transfer tax (0.65% at $3 million or more) and the New York City real property transfer tax (1.425% for a residential unit above $500,000), plus the mansion tax, which is 1.5% between $3 million and $5 million in New York City. On a $4.5 million home that is about $93,375 in transfer taxes before any gross-up and $67,500 in mansion tax. The calculators below run your price.

Temporary certificate of occupancy. The building is closing on a temporary certificate. Ask what is open on the permanent certificate and how the $5,000 escrow covers it.

Six owners carry the budget. In a six-unit condominium each owner holds roughly a sixth of the common charges, and any capital cost, from the elevator to the roof, is shared across six homes. Read the plan's budget and reserve line.

Service. The lobby is virtual-doorman with part-time attended hours, per listing records. Confirm the staffing schedule if package and guest handling matter to you.

Storage. Accessory rooms are licensed or sold separately under Amendment 1. Price one with the unit if you need it.

Use rules. Listing records report pied-à-terre use, gifting, co-purchasing and leasing as permitted. Confirm against the declaration and by-laws before you rely on any of them.

If you're considering 420 East 75th Street, also look at these Upper East Side condominiums:

• Elodie (439 East 77th Street) — new-construction boutique condominium two blocks north
• 216 East 75th Street — condominium on the same street, west of Second Avenue
• 200 East 75th Street — newer condominium at Third Avenue
• 201 East 74th Street (The 74) — new-development tower nearby
• 255 East 77th Street — new-construction condominium with full-floor and large-format homes
• The Hayworth (1289 Lexington Avenue) — new-construction Upper East Side condominium
• The Promenade (535 East 75th Street) — established condominium east of York Avenue