Building guide

Castle Mansion Nishi-Shinjuku

A 7-storey, 23-home building in Nishi-Shinjuku 7-chome, Shinjuku-ku, completed in 1983.

Sell in this buildingFree consultation · by email Buy in this buildingWe tell you when a home comes up · by email

Overview

The building

Address: 7-22-48 Nishi-Shinjuku, Shinjuku-ku, Tokyo
Stations: Nishi-Shinjuku (Tokyo Metro Marunouchi Line), 3 min walk; Shinjuku-nishiguchi (Toei Oedo Line), 6 min walk; Shinjuku (JR Yamanote Line and others), 8 min walk
Completed: June 1983
Size: 7 storeys, 23 homes
Structure: Reinforced concrete
Land: Freehold
Contractor: Iida Kensetsu Kogyo

History

History of the building

1983: Completed

Nearby

Around the building

Walking distances from the building

Parks: Shinjuku Gyoen National Garden (19 min, 1,446 m)
Shopping: Isetan Shinjuku (14 min, 1,052 m)
Places to know: Tokyo Metropolitan Government Building (11 min, 844 m)
Museums and cinemas: Sompo Museum of Art (5 min, 398 m), 109 Cinemas Premium Shinjuku (10 min, 734 m), TOHO Cinemas Shinjuku (10 min, 763 m)
General hospitals: Tokyo Medical University Hospital (8 min, 563 m), Tokyo Metropolitan Okubo Hospital (14 min, 1,071 m)
International schools: Waseda International Christian School-Tokyo (Primary Campus) (24 min, 1,844 m), Waseda International Christian School-Tokyo (Secondary Campus) (24 min, 1,859 m)

Area

Area in Numbers

Resale condos, Shinjuku-ku

JPY 1,320,000

Median sale price per sq m of floor area · 2,001 sales in the latest year

Official land price nearby — land only

JPY 1,500,000

Per sq m of land · nearest official point, about 0.9 km away · 1 Jan 2026

A home's price per sq m is on floor area and includes the building; the official land price is per sq m of land alone.

Change over 1 year · public statistics

Area-wide figures, not this building

Residential land

↑ 11.2%

Shinjuku-ku average · 1 Jan 2026 vs a year earlier

Land near this building

↑ 17.2%

Nearest official point · 1 Jan 2026 vs a year earlier

Resale condo prices

↑ 3.8%

Shinjuku-ku · median per sq m of 2,001 sales vs a year earlier

Apartment rents

↑ 6.7%

Tokyo 23 wards · Q1 2026 vs a year earlier

Condominium price index

↑ 9.6%

Tokyo · December 2025 vs a year earlier

Sources and notes

All figures are public statistics for the wider area, not an appraisal of this building, and none of them guarantees future rent, value or performance.

For sale