01
Mayfair
The house sits at 14 Half Moon Street, among clubs, galleries and quiet mews.
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Mayfair house
An elegant stay on
Half Moon Street.
Diamond Hotel Casino is a luxury hotel at 14 Half Moon Street, London. Rooms, kitchen, bar, spa and a private casino. Adults only on the floor. No online gambling.
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The house
A hotel first. A floor after dark.
Families are welcome in the rooms and kitchen. The gaming floor admits verified adults only. Address: 14 Half Moon Street, London W1J 7BH. Arrive from 15:00. The desk never closes. The gaming floor is on the hotel premises only. Play in person. No online gambling is offered. Guests must be 18 or over and show photo ID. Help: begambleaware.org
- Cuts
- 03
- Lane
- 21m
- Desk
- 24h
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Four edges
Stay, table, floor, water.
01 / Stay
Chambers
Three cuts of room from £290 a night, including VAT. King beds and quiet glass.
02 / Table
Kitchen & bar
A short European board, a late bar for adults, and in-room plates until 23:00.
03 / Floor
Gaming floor
Wheels, cards, machines and a private poker room. Adults 18+ with photo ID. No remote play.
04 / Water
Pool & still
A 21-metre heated lane, steam, and treatments from 08:00 by appointment.
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Stay
Three cuts of room.
Guide prices start from the amount shown, per room per night, and include VAT. A local occupancy tax and optional extras may be added. A rate is confirmed only when reception writes back.
01
Prism Chamber
King bed, faceted glass headboard, and a quiet outlook over Half Moon Street. Sleeps two.
£290
02
Facet Suite
Separate lounge, walk-in shower, and a Mayfair night view. Sleeps two.
£445
03
Crown Residence
Two bedrooms, a dining table for eight, and a private terrace over Mayfair. Sleeps up to four.
£790
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Table
A short board. A late bar.
Seasonal European cooking. Children are welcome in the kitchen until 21:00. Alcohol is served only to guests aged 18 or over. Private dining on request.
- Breakfast 07:00–11:00
- Lunch 12:00–15:00 · Dinner 19:00–22:30
- Bar until 01:00 (18+) · In-room plates until 23:00
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Floor
Play in the house. Never online.
The gaming floor is on the hotel premises only. Play in person. No online gambling is offered. Guests must be 18 or over and show photo ID. Help: begambleaware.org
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Water
Lane, steam, still rooms.
Hotel guests may use the 21-metre heated lane at no extra charge during opening hours. Steam and private rooms for massage and facials. Treatments from 08:00 by appointment, including for non-residents. Spa services are for rest only and are not medical treatment.
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District
Mayfair, London.
02
Green Park
Park walks are a few minutes on foot. Green Park Underground is the nearest station.
03
Piccadilly
Theatres and shops are a short walk east. Reception will sketch a route.
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Cuts
Season packages.
Optional packages for rooms, dining or water. Subject to availability. Guide prices start from the amount shown, per room per night, and include VAT. A local occupancy tax and optional extras may be added. A rate is confirmed only when reception writes back.
From £310
First Cut
One night in a Prism Chamber for two, breakfast for two, and £50 dining credit. Guide price including VAT.
From £490
Half Moon Two-Night
Two nights for two guests, Saturday dinner for two, and Sunday departure at 14:00 if available. Guide price including VAT.
From £180
Still Water Hour
Pool, steam, and a sixty-minute treatment for one visitor. Hotel stay not included. Guide price including VAT. Non-residents welcome by appointment.
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Clock
07:00
Kitchen breakfast
08:00
Treatments begin
12:00
Lunch board
15:00
Arrivals
18:00
Floor opens
19:00
Dinner seating
23:00
In-room plates end
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Desk
Write for a date.
The desk is open all hours. An enquiry is not a reservation. We reply with availability and the total before you accept. Phone +44 20 7629 4410 or email stay@diamondhotelcasino.com.
- Line
- +44 20 7629 4410
- Arrive
- From 15:00