Hiroo: A Massive 326sqm Single Floor Rarity. One Of Only Six In Tokyo’s Elite International Enclave.

① Property Highlights
In Tokyo, space is the ultimate currency. Privacy is its highest denomination. Most developments in this city chase vertical height. This residence defines itself by something rarer: horizontal scale — 326.29 sqm across a single floor. In central Tokyo, at this address, that number is not a specification. It is an anomaly.

Within this address, six residences. Not six per floor. Six in the building — two private lounges and four residences, across four floors of reinforced concrete, completed June 1982. The scale renders the concept of neighbors almost theoretical — the discretion of a private mansion, held within the structure of a managed estate.

The interior was reimagined by OEO Studio, Copenhagen — their philosophy of Compelling Minimalism, a precise fusion of Scandinavian restraint and Japanese spatial logic, executed by Shimizu Corporation, Japan’s most consistently trusted general contractor. Four balconies. Each principal room — living, dining, both bedrooms — opening to its own outdoor space, dissolving the boundary between interior and the greenery of one of Tokyo’s quietest residential streets. A master suite arranged with the logic of a boutique hotel, its own walk-in closet and en-suite bathroom. A kitchen island designed for those who cook with intention and entertain without effort.

326.29 sqm. 4LDK. 6 units total. Freehold. Hiroo, Minato-ku.

② The Neighbourhood
Hiroo’s diplomatic enclave is home to more than 50 embassies. Arisugawa-no-miya Park — 63,000 sqm of mature woodland — borders the neighborhood to the east. National Azabu, Tokyo’s most internationally stocked market, is within walking distance. The register here is immediate and instinctive to anyone who has lived in South Kensington, the 7th arrondissement, or Orchard Road. It does not need to be explained. It simply is.

Hiroo Station, on the Tokyo Metro Hibiya Line, is nine minutes on foot. Roppongi, Shibuya, Daikanyama, and Tokyo Tower are all within the immediate surrounding radius — Ginza and the Imperial Palace a short drive beyond.

Embassies do not relocate. International schools do not move. The community built around them is permanent — and so is the value it sustains.

③ Why TonTon
This is the kind of asset that does not reach the open market through conventional channels. As the exclusive Japan licensee of Forbes Global Properties, TonTon operates at the precise intersection of deep local knowledge and a truly global network — giving our clients access not only to properties of this nature, but to the discretion, due diligence, and cross-border expertise that a transaction of this significance demands.

Our advisory team brings together backgrounds in international finance, Japanese property law, and cross-border transaction management — fluent at a native level in Japanese, English, Mandarin, Hindi, and Korean. From corporate structure establishment and tax advisory coordination to post-acquisition asset management, we provide end-to-end support across the full acquisition journey.

For clients whose ambitions extend beyond the visible, our private portfolio awaits.