A hard hat, a borrowed pair of insulated boots, and a thermos of hojicha — that was the kit for the morning walk-up. Aman’s pre-opening team in Hokkaido is small, deliberately, and the local construction lead met me at the gate at 07:40 with the kind of formal apology you only get in Japan when you have arrived exactly on time.
This is a dispatch, not a review. The hotel does not open until 2027. What follows is what I saw, what I heard from the people building it, and what I think will and will not survive contact with the first paying guest.
The drive in
From Hirafu base village it is twenty-two minutes by car to the Moiwa-side approach. The road climbs through silver birch and pine, and the moment you turn off the prefectural route the grade steepens into the cleared site. The site itself is quiet in a way that only mountain construction is quiet — the muffling of fresh snow over plant and rebar — and the framing of the main building is already complete.
Mount Yotei sits across the valley like a stage backdrop. The orientation of the lobby is exact: when the great window goes in, the cone of Yotei will be centered, framed, and uninterrupted. The architects knew what they were doing. The architects, of course, were the late Kerry Hill’s practice. Hill died in 2018. The drawings carry his hand and the studio he founded is executing.
Inside the shell
The structural steel for the wellness wing was up. Three storeys, with the bath levels keyed into the slope so the half-buried lowest floor will read as part of the hillside rather than as a basement. I walked the bath shell with the project’s wellness director — a Swiss-trained physiotherapist who has been with Aman for nine years and was relocated from a property I cannot name because the announcement has not been made. She walked me through the planned sequence: arrival, dry sauna, cold plunge, the long horizontal soaking pool with the Yotei view, then the contemplation room.
There is no piped music planned anywhere in the wellness floor. That is unusual and worth flagging. Several Aman properties have abandoned the silent treatment over the years.
The guest wings are smaller than I expected. Aman has not published a final key count and the working number on the contractor’s wall was lower than what trade press reported. I will not print a number I cannot confirm. What I can say is that the proportion of room-to-public-space leans heavily public — the lobby, the wellness wing, the dining pavilion, and the library are each substantial. The keys are not.
The first wing’s heating
A milestone the day before my visit: the geothermal-assisted heating system was switched on in the south guest wing for the first time. The contractor’s senior engineer let me stand inside a shell room with no doors yet hung, and the floors were warm. Outside the open window frame, snow was falling sideways. Inside, my breath did not show.
The fuel mix is a combination of ground-source heat exchange and supplemental biomass from forestry waste on the wider Moiwa parcel. Aman would not give me the numbers. I asked twice.
Dinner in the foreman’s office
There is no kitchen on the site yet, so dinner was a bento from a Niseko caterer eaten at a folding table in the construction office with the project director and two members of the F&B planning team flown in from the Tokyo office. The conversation was the kind you only get when nothing is built and everyone is still arguing.
A few notes from that conversation, none of them on the record by name:
- The signature restaurant will be a single-chef counter, no more than fourteen seats. The chef has not been announced. The shortlist is short and one of the names is Japanese-Australian.
- The all-day room will be a fire-led concept, with a Hokkaido producer focus. Not kaiseki. Not formal.
- The ski offer will be a guided in-bounds and side-country program with three guides on staff and an additional pool of contractors. The lift access is real — a short ski-out from a designated piste onto the Moiwa system — but the lift back up is a short shuttle.
That last point matters. This is not Verbier-style ski-in, ski-out. It is closer to the St Anton model where the property is on the hill but the lift mechanics require a quick van segment.
What the site already does well
Even with the building wrapped in plastic and the steel exposed, three things were obvious:
- Privacy is engineered, not promised. The angles of the guest wings prevent any room from seeing into any other. I walked it. They prevent it.
- The arrival sequence is going to be the moment. A long, low approach corridor culminates in a single turn onto the Yotei view. Aman is very good at this and the bones here are very good.
- The light is the asset. Hokkaido winter light is different from Honshu light — flatter, bluer, longer in the morning. The fenestration is calibrated for it. The east-facing wellness floor will get a sustained dawn that other Aman properties cannot match.
What I am still uncertain about
The shuttle question is the one. So is the chef. The wellness staffing is the third. The fourth is a question of softness — Aman in Japan has been brilliant at it (Aman Tokyo, Amanemu, Aman Kyoto) and the Niseko building is more structural, more dramatic, more mountain-resort than any of the three. Whether the softness translates is the open question. I will return when it opens.
A note on the dates floating around
There has been confusion about the opening. The current verified target is 2027. Earlier dates that have circulated — including 2026 — are out of date. One aggregator I trust still has 2030 printed; that was an early estimate. Aman’s own communications are now consistent on 2027. Plan accordingly. Do not book non-refundable around either of the wrong dates.
The drive out
I left at 16:10. The light was already going. The driver took the long way back through the village so I could see how the road treatment will look once the final paving is in. The first guests will not see what I saw. They will see a finished building, a working kitchen, a lit lobby, the snow groomed for them.
I saw a steel skeleton with one warm wing. It was enough to know the building will work.
Standing Questions
- When does Aman Niseko actually open?
- Aman has confirmed 2027 as the target opening, not 2026. Several aggregator sites still list earlier dates; ignore them. The lift-served portion of the property may operate ahead of the wellness retreat — the staging is sequenced, not simultaneous.
- Where exactly on the mountain is it?
- Lower slopes of Mount Moiwa, within the protected nature reserve, with Mount Yotei across the valley. It is not in Hirafu village. The drive from Hirafu base to the Aman site took twenty-two minutes the morning I went up.
- Is the wellness retreat the main draw?
- Yes. The wellness wing is the largest structure on the plan and is being positioned as Aman's first full destination wellness retreat in Japan. The ski experience is part of the offer, not the headline.
- Will there be residences?
- Thirty-one Aman Residences are planned on the site, designed to disappear into the topography. Sales materials were circulating during my visit; the resort itself is hotel-keyed and operationally separate.
