Riverside Towers (263 West End Avenue)

The 125 apartments occupy a setback tower of 22 stories — substantial height for West End Avenue. The setbacks produce a meaningful number of terraced apartments on the upper floors, an unusual amenity for a building of this era and a primary value driver within the building.

The mix runs from studios and one-bedrooms to larger four-bedroom layouts on the upper floors. Apartments combine elements of pre-war planning (the building's bones date to 1929) with the practical finishes of its 1940s completion. Higher floors capture open western exposures toward the Hudson and Riverside Park; lower and interior lines are more sheltered. Layouts, ceiling heights, and terrace configurations vary line to line and floor to floor — worth confirming apartment by apartment.

Riverside Towers operates as a full-service cooperative with a 24-hour doorman and a live-in resident manager. The amenity roster — landscaped roof deck, residents' lounge, bike room, central laundry, and large private basement storage — is deep for the avenue, and the storage rooms in particular are a sought-after feature. The cooperative's policies are notably accommodating: up to 75% financing is permitted with a 40% minimum down payment, and the building allows pied-à-terres, co-purchasing, and guarantors. One dog per unit is permitted with board approval. Subletting is permitted four out of every five years after two years of ownership — a liberal posture by Manhattan co-op standards. A 2% flip tax applies and is paid by the buyer at closing. The 22-story, 125-unit scale supports stable staffing and the building-wide capital planning appropriate to a structure of its age and height, including ongoing facade and terrace-related maintenance under the city's periodic inspection requirements.

Sales context at 263 West End Avenue:

• Turnover is moderate given the 125-unit scale — typically several closings per year.
• Terraced upper-floor apartments and higher-floor western exposures command clear premiums over interior and lower lines.
• The building's sales record is the place to study cadence and pricing; trade-level analysis is best done apartment by apartment.

Terraces, height, and the roof deck are the differentiators. The upper-floor setbacks produce private outdoor space and open views that are scarce on West End Avenue, and the landscaped common roof deck adds river-and-city outlooks for the whole building.

The policies are buyer-friendly. Up to 75% financing, permitted pied-à-terres, co-purchasing and guarantors, and a four-of-five-years sublet allowance make this an unusually flexible co-op; budget for the 2% flip tax, which the buyer pays.

Storage and bike room are real conveniences. Large private basement storage rooms come with apartments — a feature worth confirming at the unit level.

Diligence terrace apartments carefully. Waterproofing, terrace maintenance responsibility, and any related building projects are worth specific review.

Lead with the terrace, the height, and the roof deck. These are the building's scarcest, most marketable attributes; the unusual Hudson-Towers-to-Riverside-Towers history adds narrative interest.

Highlight the flexible policies. The financing allowance, pied-à-terre and co-purchasing permissions, and liberal sublet rule widen the buyer pool meaningfully.

Price at the apartment level. Terrace presence, floor altitude, exposure, and condition matter far more than building-wide averages.

Closing timelines are co-op standard — generally 6–10 weeks from signed contract to closing.

If you're considering 263 West End Avenue, also evaluate:

• 277 West End Avenue — nearby West End Avenue pre-war co-op
• 300 Riverside Drive — nearby park-facing pre-war co-op
• 400 West End Avenue — West End Avenue pre-war co-op
• 525 West End Avenue — Schwartz & Gross pre-war West End Avenue co-op
• 340 Riverside Drive — pre-war Riverside Drive co-op near the park
• 100 Riverside Drive — pre-war park-facing co-op on the Drive

The Roebling Team at Compass specializes in the Upper West Side, Central Park West, and the broader Park-facing Manhattan market. We publish this profile because West End Avenue buyers and sellers deserve building-specific intelligence — architecture, amenities, board policy, and the realities of pricing terraced and high-floor apartments — not generic market commentary.

If you're considering a purchase or sale at 263 West End Avenue, a 30-minute consultation is the right starting point.