Turning 40 is a milestone worth celebrating, and the City of London has just the venues for it! Explore bars on Fleet Street, hotels with stylish function rooms in Bishopsgate, and charming lounges near Leadenhall Street. From the historic charm of Charterhouse Square to numerous historic pubs, our curated listings have you covered. Whether it's a rooftop bash or an intimate private dining affair, our 40th birthday party venues in the City of London will ensure a memorable celebration. Toast to four fabulous decades in style! Make this birthday unforgettable with Tagvenue.
Booking costs of 40th birthday party venues average £1250 minimum spend per event. Costs vary depending on guest capacity, popularity, location, and amenities like sound systems or bar services. Extra charges may apply for custom catering, decor, or event planning services. Packages with add-ons, such as DJs, photo booths, or other entertainment services, can also increase the overall cost. Check out the typical price ranges in City of London, based on Tagvenue data from December 2025:
| From £500 | to £2500 | minimum spend per event |
| From £37 | to £55 | per person |
| From £70 | to £175 | hire fee per hour |
Based on the popularity and user ratings on Tagvenue (updated December 2025), the best options include:
Private Cocktail Lounge at Patch St Paul's
in Blackfriars - rated 4.9/5
Our user said: ‘I would definitely recommend this venue to anyone looking to host a birthday party.’
Whole Venue at St Ethelburga's Centre
in Tower Hill - rated 4.8/5
Our user said: ‘The venue was stunning, really centrally located, and was perfect for the theme of the party (prom).’
The Speakeasy at MNM
in Tower Hill - rated 4.8/5
Our user said: ‘Excellent venue! Love the care and attention that went into planning my birthday party.’
You'll find 40th birthday party venues in various sizes, from smaller spots to larger venues; keep in mind that the type of space and your chosen layout will affect the capacity! Below you can see the typical venue sizes in City of London, together with the standard prices in each size range, based on Tagvenue data (December 2025):
| Small | up to 60 guests | prices average £500 minimum spend per event |
| Medium | between 80 and 120 guests | prices average £1500 minimum spend per event |
| Large | over 150 guests | prices average £1500 minimum spend per event |
Page last updated in December 2025
To provide you with relevant information, our pages are refreshed using an algorithm that aggregates real-time data, including bookings, reviews, and venue updates.