Dining at The Landmark London

A luxurious Victorian ballroom in Marylebone, perfect for elegant celebrations and events.

From: £150 per person

Capacity: Up to 650 guests

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 Radisson Blu Hotel, London Bloomsbury

From: £60 per person

Capacity: Up to 332 guests

Dining at Royal National Hotel

A grand, flexible event space in Central London for up to 700 guests, ideal for various occasions.

From: £49 per person

Capacity: Up to 800 guests

Business at The Dorchester

From: £130 per person

Capacity: Up to 1000 guests

How early should I book a Marylebone venue for 300 guests?

Secure your date 9–12 months in advance, especially for peak-season weekends (May–September). A £5,000 deposit (20–30%) confirms booking, with the balance due 8 weeks prior.

Which AV facilities should a 300-person Marylebone venue include?

Look for in-house PA system (4,000–6,000 W), two wireless handheld microphones, stage lighting grid with 12 LED effects and HDMI presentation inputs. Confirm on-site technicians and backup options.

What health and safety requirements apply to a 300-person indoor party?

Ensure at least two emergency-exit routes, fire-rated doors, 300 sqm+ clear escape zones and a licensed crowd-management plan. Provide first-aid trained staff and public liability cover of £10 million.

What is the typical cost to hire a 300-capacity party venue in Marylebone?

Expect a minimum spend of £10,000–£25,000 for exclusive hire of a 300-guest space in Marylebone. Weekend evenings peak at the upper end. This usually includes furniture, basic AV and staff. Add 12.5% VAT and a refundable security deposit of £1,500–£3,000.

What catering budget should I allocate per head for a seated dinner?

Plan £100–£150 per person including three courses, tea and coffee. Allow £40–£60/head for buffet menus. Factor in 12.5% VAT and service charge of 10–12% if not included.

How can I transport 300 guests efficiently to Marylebone?

Charter 4–5 53-seat coaches, timed to off-peak tube hours at Baker Street or Bond Street. Provide digital tickets and assign arrival slots. Supplement with 10 electric minibuses for last-mile drop-offs.

How much space is required for a 300-guest standing versus seated event?

Allocate 0.5–0.7 sqm per standing guest (150–210 sqm) or 1–1.2 sqm per seated guest (300–360 sqm). Add a 20% buffer for staging, buffet tables and dancefloor, totalling 360–432 sqm for best flow.

What staffing levels are recommended for a 300-guest party?

Aim for one server per 15 guests (20–25 staff), plus 2 bar staff per bar (3 bars) and 2 AV technicians. Include a duty manager and two security guards for crowd control.