Slough/Windsor Marriott Hotel
Slough/Windsor Marriott Hotel has 3 meeting/event spaces for 120–400 delegates (theatre), largest: Grand Ballroom (400).
- Up to 550 delegates
- 3 meeting spaces
- On-site parking
1 photosPhotography pending verification1 photosCapacity overview
3 spaces · capacities by layout · floor area in m²
| Room | Theatre | Cabaret | Boardroom | Classroom | U-shape | Banquet | Reception | m² |
|---|---|---|---|---|---|---|---|---|
| Grand Ballroom | 400 | — | 60 | 250 | 80 | — | — | 460 |
| Windsor Suite | 120 | — | 30 | 70 | 40 | — | — | 180 |
| Executive Boardroom | — | — | 16 | — | — | — | — | 45 |
At a glance
The Slough/Windsor Marriott Hotel is a contemporary 4-star business hotel strategically located between Windsor and Central London. The hotel features 382 modern guest rooms and comprehensive conference facilities including 14 flexible meeting rooms and a grand ballroom accommodating up to 550 delegates. Located just minutes from Windsor Castle and offering excellent transport links to London Heathrow and Central London, the hotel combines business functionality with leisure accessibility. Premium amenities include a fitness centre, restaurant, bar, 24-hour room service, and extensive parking facilities, making it an ideal choice for corporate events, conferences, and social occasions.
Best suited for
- Corporate Events
- Conferences
- Business Meetings
- Training Sessions
- Wedding Receptions
Why book with us?
- Independent venue sourcing
- Free to event organisers
- Access to negotiated rates
- Alternative venues included
- Human expert support
Know before you book
Provenance shown for every factMeeting spaces at this venue
Pricing & packages
Exact rates are confirmed on your proposal — our experts negotiate on your behalf.
Meeting room, equipment, lunch & refreshments.
Half day, full day and evening rates available on request.
Bespoke menus and exclusive-use packages for private events.
Food & catering
- Restaurant on site
- Bar on site
Dietary options catered for
Top facilities
- Free WiFi
- AV Equipment
- Air Conditioning
- Parking
- Accessible
- Restaurant
- Bar
- Fitness Centre
AV & production
Accessibility
Always confirm specific access requirements with our team — we check on your behalf.
- Wheelchair accessible
- Step-free access
- Accessible parking
- Accessible restrooms
Location & getting there
Ditton Road, Slough, SL3 8PT, United Kingdom
Venue Intelligence™
Every rating below is computed from verified platform data — never marketing copy.
Slough/Windsor Marriott Hotel is a verified hotel in Slough, hosting up to 550 guests. Its profile rates most strongly for Corporate, Historic, Hybrid Ready. Verified on-site: wi-fi, av & production, food & catering, bedrooms. Best suited to corporate conferences and board meetings.
Best for: corporate conferences and board meetings, memorable events in a heritage setting, hybrid and streamed events.
Sustainability credentials are not yet evidenced in the profile data.
Venue profile ratings
- Corporate★★★★★
- Luxury★★★★★
- Historic★★★★★
- Creative★★★★★
- Eco★★★★★
- Hybrid Ready★★★★★
- Networking★★★★★
- Training★★★★★
- International★★★★★
- Accessibility★★★★★
Verified on-site
- Wi-Fi✓ Verified
- AV & production✓ Verified
- Food & catering✓ Verified
- Bedrooms✓ Verified
- SustainabilityNot listed
- Accessibility✓ Verified
Venue IQ™
A living intelligence record — every entry is generated from verified platform data, not marketing copy.
- Oct 2025Venue verified and listed
Added to the InternationalVenues.com verified directory.
- Oct 2025Photography refreshed — 2 images
Latest venue imagery reviewed and published.
Frequently asked
How many meeting rooms does Slough/Windsor Marriott Hotel have?
Slough/Windsor Marriott Hotel has 3 meeting and event spaces in Slough, seating up to 400 delegates theatre-style in the largest room.
What is the capacity of Slough/Windsor Marriott Hotel's largest event space?
The largest event space at Slough/Windsor Marriott Hotel is Grand Ballroom, with a maximum capacity of 400 guests.
What conference facilities does Slough/Windsor Marriott Hotel offer?
Slough/Windsor Marriott Hotel offers Free WiFi, AV Equipment, Air Conditioning, Parking, Projector, Screen, PA System across its 3 meeting and event spaces.
What is the maximum capacity?
Up to 550 guests in theatre style, 300 for dinner, multiple breakout rooms available
What AV equipment is available?
Full AV equipment including projectors, screens, sound systems, microphones, and high-speed Wi-Fi throughout
Is catering available?
Comprehensive catering services from coffee breaks to full banquet dining, dietary requirements accommodated
Is there parking available?
Complimentary on-site parking available for all guests and delegates
About Slough/Windsor Marriott Hotel
The Slough/Windsor Marriott Hotel is a contemporary 4-star business hotel strategically located between Windsor and Central London. The hotel features 382 modern guest rooms and comprehensive conference facilities including 14 flexible meeting rooms and a grand ballroom accommodating up to 550 delegates. Located just minutes from Windsor Castle and offering excellent transport links to London Heathrow and Central London, the hotel combines business functionality with leisure accessibility. Premium amenities include a fitness centre, restaurant, bar, 24-hour room service, and extensive parking facilities, making it an ideal choice for corporate events, conferences, and social occasions.
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