Events at The Londoner

A vast, pillar-less ballroom in a super boutique hotel, ideal for large receptions and events.

From: £105 per person

Capacity: Up to 800 guests

Business at InterContinental London Park Lane

A grand ballroom for up to 750 guests in a luxury hotel, ideal for conferences and award ceremonies.

From: £2000 per person

Capacity: Up to 1000 guests

Events at The National Gallery

A grand gallery with baroque masterpieces, ideal for elegant events and receptions up to 700 guests.

From: £21600 per person

Capacity: Up to 450 guests

Events at The Dorchester

A grand ballroom in a luxury hotel, ideal for large events, dinners, and receptions.

From: £25000 per person

Capacity: Up to 510 guests

Dining at 8 Northumberland Avenue

From: £58 per person

Capacity: Up to 1000 guests

Business at Sheraton Grand London Park Lane

A grand Art Deco ballroom for up to 1,200 guests, featuring a dance floor and dedicated entrance.

From: £1000 per person

Capacity: Up to 760 guests

Events at The Royal Society

A prestigious venue in Carlton House Terrace, ideal for events from small meetings to large receptions.

From: £10800 per person

Capacity: Up to 500 guests

Dining at Banqueting House

From: £14500 per person

Capacity: Up to 500 guests

Dining at Quaglino's

From: £10000 per person

Capacity: Up to 500 guests

Events at Westminster Abbey

Historic cloisters with evening sun and Abbey views. Ideal for outdoor receptions up to 400 guests.

From: £8000 per person

Capacity: Up to 400 guests

Which room layouts work best for a 400-person sit-down dinner?

Use round tables of 10 (40 tables) in banquet style. Set tables in four blocks of 10× tables with 2 m aisles. Leave 1 m between chairs and walls. Ensure a 2 × 4 m platform for speakers or head-table.

How far in advance should I book a private dining room for 400 in Westminster?

For a 400-guest corporate dinner in SW1, book 6–9 months ahead. For peak season (Nov–Dec) or Wednesday/Thursday slots, allow 9–12 months. This secures your preferred date, menu planning and AV requirements.

What licences are required for a private dining event with alcohol for 400 in Westminster?

You must use the venue’s premises licence covering alcohol sales and late-night refreshments. A Temporary Event Notice won’t suffice for 400 guests. Provide SIA-certified door staff at 2 per 100 guests and confirm licensable hours with the council.

How do I manage catering service timing for a 400-person dinner?

Schedule canapés at 18:00, starters served by 18:30 (25 mins), mains by 19:15 (35 mins) and dessert by 20:00 (25 mins). Use 1 server per 12 guests (34 total) plus 8 chefs. Allocate 30 mins for buffet clearance if needed.

What is the typical cost per head for a 400-person private dining event in Westminster?

Expect £100–£150 per head for a three-course set menu with drinks package and venue hire. For premium menus with wine pairing, budget £150–£250 per head. A 400-guest event thus ranges from £40,000–£100,000 total.

What minimum spend should I expect for a private dining room hire for 400 guests in Westmi

Most Westminster venues require a minimum spend of £30,000–£60,000 inclusive of food, drink and room hire. This varies by day (peak Wed/Thu higher) and seasonal demand. Confirm whether corkage or extras are included.

What AV equipment is essential for a 400-person private dining room in Westminster?

Install at least one 8,000-lumen projector or LED wall (min. 3×2 m), two 75″ confidence monitors, PA system with 4–6 speakers, 2 lapel mics, 2 handheld mics and stage lighting. Include a dedicated technician and backup cables.

How much space is needed for a private dining dinner for 400 people?

Allow 1.2 sqm per guest: 400 × 1.2 sqm = 480 sqm minimum. Add 50 sqm for service aisles, buffet or stage. Total recommended space: 530 sqm+. Check floorplans for pillar positions and head-table placement.

Which Westminster stations are most convenient for 400-person private dining guests?

Victoria station (350 m, Victoria line) handles up to 20 tph. St James’s Park (400 m, Circle & District) and Westminster station (550 m, Jubilee, Circle, District) are also within 8 minutes’ walk. Coach drop-off on Storey’s Gate.

What hygiene and staffing levels are recommended for large private dining events?

Adopt Level 2 Food Hygiene standards. Deploy 8 chefs (1 per 50 guests), 8 kitchen porters (1 per 50), 34 waiters (1 per 12), plus 4 event managers. Schedule briefing 2 hours pre-event for service flow and safety checks.