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About this room

Thinking of hosting a large celebration or maybe even your special wedding day? We offer exclusive hire on Saturdays for larger group up to 200 people. We have great variety of party packages with options such platters, canapés, buffet or sit down set menus that works for all occasions.

We are happy to discuss all individual requirements to make sure that you will have the perfect event!




up to 200



up to 200

Starting prices

Package Per Person - Just pay a fixed price per person


8:00 - 0:00

from £25 Per session

*All guide prices are inclusive of VAT

Note on pricing

Send me a message through Tagvenue for a bespoke quote that's right for your event.
Mentioning your budget will help me propose the best option for your needs.

Sample catering prices

All prices are negotiable depending on day and event so please send us a message to discuss further.

Package per person details

Depending on details of your event, each pack includes various item. Please send us a message to discuss further.


In-house catering

Allows external catering

Approved caterers only

BYO alcohol allowed

Can provide alcohol

Kitchen facilities available

Can provide halal

Can provide kosher

Complimentary water

Extensive vegan menu

Extensive gluten-free menu

Complimentary tea and coffee

Buyout fee for external catering


Alcohol licence until 00:00

Wedding licence

Temporary event notices (TENs) available

Room features

Wi-Fi Wi-Fi

Flatscreen TV Flatscreen TV

Flipchart Flipchart

Air conditioning Air conditioning

Natural light Natural light

Parking available Parking available



Audiovisual (AV) equipment

Conference call facilities

Disabled access

Storage space

Accommodation available

Venue welcomes

Ticketed events

Own music equipment /DJ

VIP events

Enhanced security events

Located in the heart of Westminster, The Loose Box Bar and Kitchen is a contemporary spot where business starts when you do.

From first thing in the morning, enjoy great food and top notch service whether you’re relaxing with friends or doing business. Breakfast, coffee and pastries accompany early morning meets and quick pre-work visits, while lunch and dinner are enjoyed in relaxed, stylish surroundings perfectly matched to the vibrant, delicious menu.

Sourced from quality suppliers, many of them local, the very best ingredients go in to The Loose Box’s menus, each of which provides details on the locality of your dish so you can rest assured you’re not adding to anybody’s carbon footprint. Excellent platters are a particular favourite of The Loose Box’s varied crowd which includes not only local business folk from nearby offices but shoppers, tourists and locals alike.

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