18 minutes to Shinjuku | 2 minutes to the station l 5 rooms with different designs l Maximum 8 peopl Tokyo, Japan · Entire home Rated 4.99 (526 reviews)Airbnb management company12 months to October 2026
Ka So: Airbnb Management Company
Ka So is a short-term rental management company running 23 active Airbnb listings in 5 Tokyo Prefecture markets, most of them in Tokyo, in AirROI's data for the 12 months to October 2026. Ka So's largest market is Tokyo, with 15 listings.
- Where
- Tokyo Prefecture and Chiba Prefecture
- Homes
- Apartments and condos and houses, typically 1.5 bedrooms
- Hosting
- Mostly co-hosts on owners' accounts
Markets
Where Does Ka So Operate?
Ka So runs listings in 5 Tokyo Prefecture markets, and 65% of them are in Tokyo.
Tokyo holds 65% of Ka So's listings
Active Airbnb listings in its largest markets, 12 months to October 2026
Every market it works in
Active Airbnb homes run as host or co-host in each market, 12 months to October 2026. Market data links go to the market's own report, apart from any ranking.
| # | Market | Homes |
|---|---|---|
| Tokyo Tokyo Prefecture · ranked 225th on the Tokyo page | 15 | |
| Nakano City Tokyo Prefecture | 5 | |
| Funabashi Chiba Prefecture | 1 | |
| 4 | Shibuya Tokyo Prefecture | 1 |
| 5 | Toshima-k Tokyo Prefecture | 1 |
A rank is noted under the market's name where it has its own ranking page.
Guest ratings
How Do Guests Rate Ka So?
Ka So's homes hold a median guest rating of 4.99 across 4,077 reviews, and 87% of its rated listings score 4.8 or higher, against 57% for Japan managers with 10–24 listings.
87% of Ka So's rated listings score 4.8 or higher, against 57% for Japan managers its size
Rated listings scoring 4.8+, 12 months to October 2026
Airbnb guest ratings, not owner reviews: the median of the overall ratings of the company's rated listings, and the share of them at 4.8 or higher, in the 12 months to October 2026. Managers its size are those with 10–24 listings in Japan.
Homes
What Kind of Homes Does Ka So Run?
Ka So lists apartments and condos and houses. Its typical home has 1.5 bedrooms.
Studio or 1 bedroom is Ka So's most common size, at 50% of its homes
Share of active listings by bedrooms, 12 months to October 2026
- Ka So's listings
- Across its markets
Apartments and condos: 52% of Ka So's homes, against 73% in its markets
Share of active listings by property type, 12 months to October 2026
Ka So
- House 44%
- Apartment & Condo 52%
- Others 4%
Its markets
- House 20%
- Apartment & Condo 73%
- Boutique & Hotels 7%
Some of its best-reviewed homes
- 18 minutes to Shinjuku | 2 minutes to the station l 5 rooms with different designs l Maximum 8 peopl Tokyo, Japan · Entire home Rated 4.99 (526 reviews)
Ikebukuro 15 minutes | Shinjuku 25 minutes | Higashi-Ikebukuro Station 6 minutes | Private house | 5 Toshima-k, Japan · 1 bedroom Rated 4.98 (51 reviews)
12 minutes from Shinjuku | 10-minute walk from Hatsudai station | Japanese art Shibuya, Japan · 1 bedroom Rated 5.00 (38 reviews)
Shrine-style and room | 75㎡ | Single-family home | Port Funabashi, Japan · 3 bedrooms Rated 4.82 (177 reviews)
15 minutes to Shinjuku | 6 minutes to the station l 2 types of rooms l Maximum 8 people l Maximum 10 Nakano City, Japan · Entire home Rated 5.00 (81 reviews)
Tokyo Kids Castle | 130 ㎡ | 20 minutes from Shinjuku | 1 minute from station Tokyo, Japan · 3 bedrooms Rated 5.00 (263 reviews)
Rated 4.8 or higher by guests over 20 or more reviews.
Size
How Big Is Ka So?
| Rank | Ranking | Listings |
|---|---|---|
| 225 | 225th largest in Tokyo | 15 |
Checks
Is Ka So Legit?
In AirROI's data, Ka So is an active Airbnb business: 23 active listings and 4,077 guest reviews, run from one public Airbnb host account. AirROI checks activity on Airbnb's public listings. It doesn't certify companies or judge how they treat owners, so ask for references and read the contract.
- Airbnb account
- Ka So (23 homes). Accounts updated October 2026.
- Listings and reviews
- 23 active listings, 4,077 guest reviews
- Markets
- 5 markets in 5 Tokyo Prefecture markets
- How it hosts
- 26% on its own accounts, 74% as co-host on owners' accounts
Questions
Questions About Ka So
What does Ka So charge?
AirROI does not publish or estimate any single company's fee, so ask Ka So for its rate card in writing, and what it covers.
Where does this data come from?
AirROI counts the active Airbnb homes run from Ka So's public host account, as host or co-host, over the 12 months to October 2026, each home once. The counts cover Airbnb only, so its full portfolio may be larger.
About the data
About This Data
Every figure comes from AirROI's data on active Airbnb listings over the 12 months to October 2026: listings open to bookings through the year, run by the company as host or as co-host on the owner's account. The company's Airbnb accounts with 5 or more listings are joined by name, so smaller accounts may be missing and the counts are a floor; homes listed only on other sites are not counted. Nothing is self-reported. Profiles are refreshed every month, next in December 2026. The method page gives how homes are counted, how accounts are credited and joined, and how a region is drawn.