Is a 1LDK the Right Size for You?
A 1LDK sits between a compact 1K/1R and a family-sized 2LDK: one separate bedroom plus a living-dining-kitchen room large enough for a sofa and dining table. It's the layout most couples and remote workers in Tokyo settle on, because it draws a clear line between sleeping space and living space without paying for a second bedroom neither person may use.
In Shinjuku specifically, a 1LDK trades some of the savings of a 1K for a meaningfully more livable space — and still costs substantially less than a 2LDK in the same area, since you're not paying for a second bedroom. The ward's transit position means a 1LDK here gets you central access most outer wards can't match, though Shinjuku itself isn't the cheapest place to find one — for budget-focused 1LDK options nearby, see our cheap apartments near Shinjuku guide.
Storage is the most common friction point for couples in a 1LDK — look for units with large built-in closets or a separate storage locker (S) to keep the living room from feeling cluttered.
Takadanobaba
Sits at the north end of Shinjuku ward on the JR Yamanote Line and is the home station for Waseda University — one of the highest concentrations of language schools in Tokyo, including ISI Language School. Private 1K apartments run ¥80,000–¥105,000/month, with the area's landlords well-practiced in international student applications.
Kagurazaka
A sophisticated, hillside neighborhood with winding cobblestone streets and a quieter, more residential character than central Shinjuku — popular with renters who want a calmer atmosphere while staying close to the station.
Shinjuku-sanchome
Close to Shinjuku Gyoen Garden, this area balances city-center access with some green space nearby — a common pick for those who want central convenience without the densest commercial blocks.
Nishi-Shinjuku
Home to high-rise towers and the Tokyo Metropolitan Government Building, this side of the ward offers modern buildings with strong train access via the Toei Oedo Line — a good fit for professionals prioritizing newer construction.