

Feel safe. Be bold.
A 50-year-old Japanese house, 2 minutes from the sea in Tateyama, Chiba (about 1.5 hours from Tokyo), turned into a "secret base" with ideas from local kids.
Private rental for one group per day, up to 10 guests. Opening March 1, 2027.
This is where the secret base begins.
All photos show the house before renovation. We are rebuilding it bit by bit with the kids, and will post photos of the finished house before we open.
Before
Before
Before
Before
Before
BeforeDesigned by kids,
built for families.
Our kid co-founders decide what goes into the house at their monthly meetings. Here are some of their ideas so far:
- A big upstairs playroom with a slide, trampoline, monkey bars and a climbing wall, plus room for soccer and basketball
- A block-world room with a ball pit
- Capsule-hotel-style kids' bunks, each themed like a game world
- A real kids' kitchen where children cook right next to the adults

Prices
Price per night for the whole house. Same price for up to 10 guests, from babies to adults.
- Tax and cleaning included, room only. One group per day.
- Peak = nights of Jul 20–Aug 31, Dec 29–Jan 3 and Apr 29–May 5
- Multi-night discount: ¥5,000 off each night from the 2nd night
- BBQ grill free to borrow (charcoal included; bring your own food)
- Craft beer plan: one bottle (about 7 glasses) on a beer server, ¥7,000, up to one per night (age 20+ only)
- Cancellation: weekday nights free up to the same day. Weekend and peak nights: 50% the day before, 100% on the day. No-shows are charged in full.
Request a reservation
We are accepting reservation requests for stays from March 1, 2027, currently through the night of Apr 30 (on the 1st of each month we open dates 2 months ahead). We will check your request and reply by email. Payment details follow once your booking is confirmed.
Check availability and requestGet opening news
We will email you when photos of the finished house are up and when we open.
- Location
- 322-22 Funagata, Tateyama, Chiba, Japan
3-minute walk from Nako-Funagata Station (JR Uchibo Line) · 2-minute walk to the sea · about 1.5 hours from Tokyo - Opening
- March 1, 2027
- Operated by
- inclutia Inc.