725 Riverside Drive (The Imperator)

The building rises 11 stories in beige brick on the corner of 150th Street, with the restrained classical detailing of its date — bandcourses marking the base, middle, and crown where the original cornice once ran, and a light-court entrance recessed off the Drive. The 74 units run from ground-floor studios and one-bedrooms through full-scale pre-war three- and four-bedrooms; the larger lines retain the original program of long entry galleries, windowed kitchens, and 15-to-18-foot living and dining rooms. West-facing upper-floor units take Riverside Park and Hudson light. Because the conversion subdivided some of the original 55 apartments, plan quality varies by line — the intact pre-war layouts are the building's best inventory, and the renovation spread between sponsor-basic and owner-renovated units is wide.

This is a lean, value-tier operation rather than a full-service one: part-time door coverage in the afternoons and evenings, a live-in superintendent, central laundry, and bike storage. Common charges and taxes are correspondingly modest — frequently abated further at the unit level where J-51 history applies, which buyers should have verified rather than assumed, since abatement schedules expire. The 2014 amendment and certified financial statement on file in The Roebling Research Library provide the documentary baseline; your attorney should pair them with the current budget and financials from the managing agent.

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 $715/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 3.1% 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 1-02096-7501; 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. There is no co-op board admission; purchases run through the condominium's application and right-of-first-refusal process. Financing up to 90% of the purchase price, leasing with conditions and pied-à-terre use with conditions are documented; confirm LLC and trust rules in the declaration and bylaws. In a neighborhood where the prestige pre-war alternatives are co-ops, this is the building's core advantage; use it deliberately.

Ask the sponsor-concentration question first. A large block of units was sponsor-held and tenant-occupied for years after the 2006–07 conversion. Lenders care about owner-occupancy and single-entity concentration; get the current numbers from the managing agent before you go to contract, and have your lender confirm the building is warrantable for your loan.

Verify the tax line, not the listing's version of it. J-51 history means unit tax bills can be abated, expiring, or fully phased out depending on the schedule. Run the True Monthly Carrying Cost Calculator with the post-abatement figure.

Buy the layout. The subdivided units and the intact pre-war plans are different products at different values. Decorative fireplaces, gallery entries, and windowed kitchens mark the original fabric; price accordingly.

Price the services honestly. Part-time door coverage and central laundry affect the service experience. Compare current charges, taxes and assessments with full-service alternatives before assuming monthly savings.

Sell the scarcity, not just the unit. Pre-war condominium ownership on Riverside Drive is a thin category — most of the competition is either co-op stock with board friction or new construction without the bones. Name the structural facts in the marketing.

Renovation condition drives the spread. The gap between sponsor-condition and renovated units is wide and visible in the building's history. Price to your side of it; run the Renovation Cost Calculator against your ask if your unit needs work, because your buyer will.

Expect a financing-literate buyer pool. Entry-tier Manhattan buyers are rate- and underwriting-sensitive; clean building financials and current owner-occupancy data presented up front shorten contracts. We provide the documentary package from the Research Library to serious buyers' counsel.

If you're considering 725 Riverside Drive, also evaluate:

• The Riviera (790 Riverside Drive) — the grand 1910 co-op at 156th Street; the corridor's prestige pre-war alternative, with a board
• The Grinnell (800 Riverside Drive) — the triangular 1911 co-op landmark of Audubon Park; same era, co-op mechanics
• 555 Edgecombe Avenue — the landmarked Paul Robeson residence atop Coogan's Bluff; Sugar Hill's historic pre-war anchor
• 409 Edgecombe Avenue — Sugar Hill's other landmarked address; the co-op comparison east of the Drive
• Graham Court — the Clinton & Russell courtyard landmark on Adam Clayton Powell; central Harlem's pre-war benchmark
• 1485 Fifth Avenue — the full-amenity modern Harlem condo alternative for buyers weighing pre-war character against new systems
• 100 West 119th Street — boutique modern condo stock in south Harlem; the other direction of the same value thesis