SXKON Capsule House D9 Opens Today: First Guest Checks in at 3 p.m. in Osaka Bay

Osaka, Japan — August 12, 2025 — SXKON announced this morning that its newest capsule house, the D9, is ready for overnight guests. Booking opened at 9 a.m. JST and the first reservation was confirmed within four minutes. The D9 sits on a floating platform in Osaka Bay, giving visitors a 360-degree view of the water and the city skyline.

What the D9 Looks Like

The capsule house is shaped like a white egg, 4.5 meters long and 2.8 meters high. The outer shell is made from three layers of clear ETFE plastic, the same material used in the Eden Project domes in the UK. Inside, the space is 18 square meters and includes:

A double bed that folds into the wall when not in use
A compact shower and dry toilet behind a sliding door
A small kitchen with an induction cooktop, microwave, and bar fridge
Floor-to-ceiling windows on three sides
A roof hatch that opens for fresh air or emergency exit

SXKON Capsule House D9

Power and Water

Electricity comes from 12 rooftop solar panels and a 5 kWh battery. Drinking water is pulled straight from the bay, filtered through a reverse-osmosis unit, and stored in a 200-liter tank. Waste water is treated on site and released back into the bay after meeting Japanese environmental standards.

Safety Checks Passed

The D9 passed inspections by the Japan Coast Guard and the Osaka Prefecture Building Department last week. Each capsule house carries a life raft, two oxygen masks, and a satellite beacon. A support boat circles the platform every hour from 6 a.m. to 11 p.m.

Cost and How to Book

Nightly rates start at $420 on weekdays and $520 on weekends. Guests book through SXKON’s official website or Airbnb. Only one group—up to two adults and one child—is allowed per night. Check-in is by boat from the Tempozan Harbor ferry dock; the ride takes six minutes.

Guest Reviews from Test Stays

During the soft-launch phase, 22 guests stayed in the D9. Average rating: 4.9 out of 5. Frequent comments praised the “quiet lapping of the waves” and the “sunrise over the bay.” One guest noted the Wi-Fi speed at 220 Mbps, fast enough for video calls.

Expert Opinion

Hiroshi Tanaka, a civil engineer at Kyoto University who reviewed the design, told reporters, “The floating platform uses flexible joints that let the capsule house move with the tide. This cuts stress on the shell by 30 % compared to a fixed pier.”

Future Plans

SXKON says it will add three more D9 units in Okinawa by March 2026. The company also confirmed that buyers of its upcoming $150,000 near-space balloon flights will receive a free one-night stay in any capsule house as part of training.

Bottom Line

For travelers who want privacy, water views, and a look at future living technology, the SXKON Capsule House D9 is open for business. Book early—only one night per guest is allowed to keep the experience fresh.