Why Do Great Buildings Become Hotels?

Buildings kept as public facilities are strong in their own way. Tokyo’s former Iwasaki residence gardens, for example, had its Western-style house and billiard room designated Important Cultural Properties in 1961, and opened in 2001 as a metropolitan garden. It is publicly owned and publicly managed; adult admission is 400 yen (per a Tokyo Metropolitan Government release; checked October 2026). Visitors see the building at set hours, along a set route.

A hotel is different: people sleep inside. They meet the morning and evening light, climb the stairs, walk the corridors, close the door. The building is not an exhibit but a container for ordinary life. That is the biggest difference from a museum.

We see three reasons why hotels are chosen. First, the original use is close: stations, guest houses, resorts — buildings that were made to receive people are easy to return to lodging. Second, people are there all day, so more eyes notice when something wears. Third, the building can, in principle, pay for itself: room rates and dining revenue become a repair fund.

Tokyo Station Hotel is the model case. The Marunouchi station building was completed in 1914 to a design by Tatsuno Kingo, and the hotel opened on 2 November 1915. In an air raid on 25 May 1945 the roof and interiors burned, and after the war the building was used as a two-storey structure, having lost its third floor. The hotel closed in 2006 as the station went into a major preservation and restoration project, and reopened on 3 October 2012 with 150 rooms. The station building itself was designated an Important Cultural Property in 2003.

The hotel was inside that station. To save the station was, inseparably, to save the hotel.

Nara Hotel belongs to the same Tatsuno lineage. It was designed by the Tatsuno Kataoka office (Tatsuno Kingo and Kataoka Yasushi) and opened on 17 October 1909. On 16 October 2026 the Council for Cultural Affairs recommended that the main building be designated an Important Cultural Property; formal designation awaits notification in the official gazette. Its operator, JR West, says that it would be the first designated building in Japan that is still operating as a hotel on its own. That is the company’s claim, not an official view. The assessment cited for the building points to how smoothly Japanese and Western design are combined.

When you stay, come back to the lobby once after check-in. If this building did not survive in order to be visited, but because it could be slept in, then the worn floor and the polish on the handrail are also a record, kept over many years, of the guests who came before you.

Becoming a hotel is no guarantee, though. There is a counter-example. The Imperial Hotel by Frank Lloyd Wright, completed in 1923, ceased operating in 1967 and was demolished in 1968; a new main building stood by 1970. The reasons that can be confirmed are age and its inability to meet growing demand for rooms. Only the entrance and lobby were moved to the Meiji-mura museum in Aichi, a project that began in 1976 and was completed in 1985.

A hotel can be a vessel that protects a building, and a reason to let it go. Some buildings survived because they were hotels; some did not, for the same reason. The next chapters look at both sides.

The preservation and restoration of the Marunouchi station building began in May 2007 and was completed in October 2012. The total cost is reported at about 50 billion yen. The source of that money was what is called air rights.

The station’s site allows a floor-area ratio of up to 900 per cent, but the station has only three storeys. The unused floor area — roughly six storeys’ worth of sky that could have been built — was left over. That surplus is transferred to other sites nearby and sold; the buyer may build higher than the limit of its own plot. By keeping the station low, its value is passed to other parts of the city. This is a planning mechanism called the special floor-area-ratio district. On the Marunouchi side, a transfer to Tokyo Building has been confirmed.

So the preservation of Tokyo Station was a circulation of money that involved the whole district. One thing matters here: that roughly 50 billion yen is the figure for the whole station building, not the cost of the hotel alone. The hotel is one part of that larger loop.

The second mechanism is engineering. Tokyo Station is protected by base isolation, which lets the building float on its foundations. Engineers dug beneath the station, supported the building above on temporary piles while a new substructure was formed, and then set the building back on isolation devices: 352 laminated-rubber isolators and 158 oil dampers. Instead of reinforcing the walls, the shaking is kept from reaching them. It was adopted as a way to reduce the strengthening needed in the brick walls.

Public systems have moved too, little by little. As of 9 July 2026 there were 14,884 Registered Tangible Cultural Properties (buildings) in Japan. For a registered building, the taxable base of the property tax on the structure is halved, and the inheritance tax valuation is reduced by 30 per cent. A small but real support for those who keep owning.

One thing is often misunderstood: registration does not automatically exempt a building from the Building Standards Act. To use an old building as lodging, it has to be reconciled with modern fire and escape standards. On 16 March 2018 the Ministry of Land, Infrastructure, Transport and Tourism issued guidelines for local ordinances that let municipalities apply the standards flexibly; at the time only ten or eleven local governments had their own. On 15 June the same year, the amended Hotel Business Act took effect and abolished the minimum number of rooms — ten for hotels, five for inns. The path for small historic buildings to become inns widened a little.

The framework is improving. Even so, for large landmarks, hotel income is often what makes upkeep possible. Nara Hotel carried out seismic work on its main building between 2017 and 2020, and in 2026 closed entirely for about five months, reopening the main building alone on 4 June. The 1984 annex was reborn as the West Wing and reopened on 2 September. With each round of work, the hotel repairs its own building.

A hotel was the vessel in which a building could stay in use the longest.

There is one more power that is easy to overlook: being seen. Guests take photographs, tell others, and come back. A hotel in a landmark builds new supporters every night. As a museum counts visitors, a hotel counts guests, and that number becomes a reason to protect the building.

The price is easier to see if we separate three stances: restoration, renovation and succession. The labels are ours, but they are close to the distinctions used in preservation practice.

Restoration brings back a lost appearance, and Tokyo Station Hotel is the example. It was not an exact return, however. The outer walls of the third floor, lost in the war, were recreated on a new frame. Because of a shortage of bricklayers and the current building code, brick construction itself was abandoned; the structure is steel-reinforced concrete and similar, faced with brick. The first and second floors of the north and south domes are not restoration but new design. It returned to the appearance at opening, but not to the building at opening. That is the cost of restoration.

Renovation keeps using the building by making changes, and asks where to draw the line between what stays and what changes. At Mampei Hotel, only the Alps Building is a Registered Tangible Cultural Property: three timber storeys completed in 1936, whose stained glass and coffered ceilings were kept. The neighbouring Atago Building, by contrast, was rebuilt entirely as a new 30-room wing. After the renovation the room count is reported as 86 — 12 in the Alps Building, 30 in Atago and 44 in Usui — against 109 announced before, though the two figures may be counted differently and cannot be compared directly. Behind those numbers, still, is a line: protect the wing that is a cultural property, change the one that is not.

Kasuien, at The Westin Miyako Kyoto, is a sukiya-style guest wing designed by Murano Togo in 1959. The renovation of the whole hotel, which began in 2018, was an investment of 19.8 billion yen, and the room count of the hotel as a whole fell from 499 to about 270. The exterior was reportedly to follow the original design, and Kasuien combined pairs of rooms to enlarge them, leaving 12. Fewer rooms and more value per room became the way to make the numbers work. We could not confirm any legal heritage designation for the Kasuien building itself; its selection by DOCOMOMO Japan is an honour, not a designation.

Hotel New Grand is different again. The Yokohama landmark, opened in 1927 to a design by Watanabe Jin, is protected not by national designation but as a Yokohama City certified historic building, since 1992. Seismic work in 2014 and 2016 added steel braces, shear walls and steel jackets around columns, and the relief ceilings of the second-floor banquet hall and lobby are reported to have kept their main elements while meeting safety requirements. Where legal protection is weaker, whether to keep something depends on the owner’s operating judgement.

Succession passes on the memory of a place by building anew. Benesse House on Naoshima is not a renovation or conversion. Opened in 1992 to a design by Ando Tadao, it was conceived from the start as a museum and a hotel in one, and has 65 rooms: 10 in the Museum, 6 in the Oval, 41 in the Park and 8 on the Beach. It is a case that never chose between hotel and museum.

Even city hotels are forced to renew. Park Hyatt Tokyo, which opened in 1994, is not a heritage building but a working high-rise hotel; after about 19 months closed from May 2024 it reopened on 9 December 2025, with rooms said to have gone from 177 to 171. Even renewal costs time and rooms.

When a hotel uses a historic building, the room count becomes a big question, and overseas examples are similar. The St Pancras Renaissance London was opened in 1873 as a railway hotel, closed in 1935 and used as offices, was given Grade I listing in 1967 and reopened in May 2011. To make it viable at least 240 rooms were needed, so a new wing of 207 rooms was added and the old building became 38 suites. The original building is said to have had only eight bathrooms for 300 rooms. To protect a building, sometimes new rooms have to be added outside it.

Japan has comparable stories. Hotel Kawakyu in Shirahama, Wakayama, cost about 40 billion yen at the height of the bubble and opened in 1991. According to press reports it went bankrupt in 1995 and was later bought for about 3 billion yen. The building stayed as it was, and it shows that viability and architecture are not always joined in a straight line.

Laid out as a timeline, the turning points of preservation come into view: the chaos of the post-war years, demolition and relocation, municipal certification, national designation, and the institutional changes of the 2010s. Over time the protective power of hotels has come to rest on technology and institutions. But that power works only while the hotel stays open. If the hotel closes, the building suddenly has no defence. This plain fact is the heaviest of all the costs.

Use it to protect it. Change it to use it. And with every change, let something go.

What is let go may be a number of rooms, an original wall, or the shape of an old bathroom. We believe guests have a right to stay knowing what it was. A cost that a museum hides is, in a hotel, right in front of the guest.

1. Read the name of the wingHistoric hotels often have wings of different ages. At Mampei Hotel the Alps Building dates from 1936 and Atago is new. Nara Hotel splits into the 1909 main building and the wing built in 1984 that reopened as the West Wing in 2026. At Benesse House the Museum, Oval, Park and Beach differ in construction. First check whether the room name on the booking site includes the wing.
2. Look for what was keptChoose from what can be confirmed in official materials. At Tokyo Station Hotel the third-floor facade is a restoration, while the first and second floors of the domes are new design. At Hotel New Grand, look at the relief ceilings of the second-floor lobby and banquet hall. At the Alps Building of Mampei Hotel, the stained glass and coffered ceilings. Walk and compare what is then and what is now.
3. Check operating status and worksPreservation sits next to closures and renovation. Nara Hotel closed completely in 2026, Park Hyatt Tokyo for about 19 months, Mampei Hotel for about a year and a half. Benesse House has announced maintenance closure from January to March 2027. Before you stay, check the news on the official site.

What can be confirmed about orientation and floor level is limited in official materials, so we make no claims here. If a particular room interests you, the surest way is to ask the hotel before booking: is this room in the original wing?

Finally, back to the first question. Why do great buildings become hotels? Our answer is this. A hotel was one of the few uses that let a large building be used every day and pay for itself. So some buildings survived. And in order to survive, they let something go.

That is why staying means something. Part of the price of your night goes toward keeping an old building standing for a few more decades. What did that building keep, and what did it let go? On your next night away, choose by reading the architecture.