No. 4 Hamilton Place

Bright and elegant, the ground-floor Marshall of Cambridge Room suits meetings, private dining and receptions. Its direct connection to the Foyer gives guests a natural place to arrive, collect a drink or catch up between sessions. The two areas also work well for conference refreshments and exhibitions.

Guest capacity

Theatre

60

Boardroom

24

Cabaret

28

Classroom

30

U-Shaped

24

Dining

50

Standing

120

The venue’s largest space puts presentations centre stage, with an in-built stage and flexible layouts for conferences, screenings and dining. Room hire includes an AV technician, projection equipment, screens, microphones, a PA system and stage lighting. The fully accessible room also offers a blank canvas for event styling.

Guest capacity

Theatre

200

Cabaret

100

Classroom

84

Dining

150

Standing

300

The first-floor Argyll Room pairs elegant interiors with direct access to the terrace overlooking Hyde Park. Guests can move from drinks outdoors to dining inside, making it an appealing setting for events that unfold across the afternoon or evening. The adjacent Mezzanine provides additional space for registration, networking or entertainment.

Guest capacity

Theatre

100

Boardroom

25

Cabaret

48

Classroom

60

Dining

120

Standing

200

Hyde Park is the backdrop to this open-air terrace, adjoining the Argyll Room. It’s a welcome spot for drinks and conversation above the bustle of Mayfair, with a heated marquee during the festive season extending its appeal into winter.

Guest capacity

Standing

200

Large bay windows bring plenty of daylight into this second-floor room, creating a comfortable setting for all-day meetings and lunches. Hybrid facilities support remote participation, while the Sopwith Room directly opposite can be booked alongside it for refreshments or breakout sessions.

Guest capacity

Theatre

50

Boardroom

24

Cabaret

28

Classroom

20

Dining

40

Standing

60

Light-filled and adaptable, the Sopwith Room offers a smaller setting for meetings and dining, with large bay windows and hybrid facilities. Its position opposite the Handley Page Room makes the pair a practical choice when an event needs separate spaces for discussion and downtime.

Guest capacity

Theatre

50

Boardroom

24

Cabaret

28

Classroom

20

Dining

40

Standing

60

A contemporary contrast to the townhouse’s period interiors, the third-floor Martin-Baker Room features fixed boardroom furnishings and hybrid facilities. Displays exploring its sponsor’s history give the room a distinct identity and provide a talking point before the meeting begins.

Guest capacity

Boardroom

20

Located within the lower-ground-floor Airbus Business Centre, this modern boardroom supports meetings and training days with hybrid facilities. It can be hired independently or alongside the Lounge and McAlpine Room for an event that needs additional space.

Guest capacity

Boardroom

18

A round table gives the McAlpine Room a conversational feel, suited to small meetings and one-to-one discussions. Hybrid facilities support guests joining remotely, while the adjoining areas of the Airbus Business Centre can be hired alongside it.

Guest capacity

Boardroom

8

Dining

8

The Airbus Lounge offers a comfortable place to catch up, take a call or hold an informal conversation. Available separately or with the Business Centre’s meeting rooms, it gives guests somewhere to pause between scheduled sessions.