At the Paradox Museum, late entry is not permitted. Not discouraged, not subject to a manager’s discretion. Not permitted.
“Please arrive at the time stated on your ticket; late entry is not permitted.”
That is the strictest arrival rule of the three timed immersive venues we have read the small print for. The Mundo Pixar Experience wants you there 10 minutes early and may refuse latecomers. Bubble Planet lets you arrive up to 30 minutes after your slot. The Paradox Museum gives you no grace at all, so budget for the journey from Knightsbridge station and the queue to match.
Under-18s need an adult to sign for the Zero Gravity Room
There are three age rules, and the third is the one that surprises people on the day.
Under 14: “Must be accompanied by a paying adult at all times during the visit.”
Ages 14 to 17: “May visit the museum independently with a valid photo ID. (Purchasable onsite).”
Under 18, Zero Gravity Room: “Must be accompanied by an adult (18+) who consents to the exhibit’s Terms & Conditions on their behalf onsite and supervises them during the experience.”
So a 16 year old can walk round alone but cannot go into the Zero Gravity Room without an adult who has signed the terms at the museum. If your teenager is coming with friends, the best-known room may be off limits to them.
Children under 4 enter free.
Carer tickets do not include Zero Gravity
The provision exists, but the process has more steps than most.
“Guests requiring assistance throughout this experience are entitled to apply for one free pass for their Personal Assistant/Support worker. Please contact us with proof of needing a carer ticket. Once we receive this, we will provide you with the code of a voucher, that you can use to purchase your free carer ticket.”
Three conditions follow, and the first is the one that matters: “Note that carer tickets include general Museum entrance/General admission only; they do not include access to Zero Gravity.” And “Each carer’s ticket will need to be purchased with at least one other full price ticket.” You must show the voucher with your tickets to enter.
So you apply in advance, wait for a voucher code, and the carer cannot enter the Zero Gravity Room on that ticket.
One room is not wheelchair accessible, and there is nowhere to sit
“Yes, the majority of the Paradox Museum London is wheelchair accessible. However, please note: The Zero Gravity Room is not wheelchair accessible. A few exhibits are not step-free or contain uneven flooring or narrow pathways that may be challenging for some wheelchair users.”
It is a walkthrough with no seating at all: “This is a walkthrough experience, so there won’t be any seating available.” That is different from Mundo Pixar, which will take you to a rest area on request.
For deaf and visually impaired visitors the honesty is unusual: “The museum features many optical illusions, which can be challenging for visually impaired visitors. Only one exhibit includes an audio element, and we do not have hearing loops. Therefore, the museum is almost completely accessible to Deaf visitors.”
There is no audio guide, but each exhibit has a QR code that links to a page explaining the science, which can be read aloud to you. And a photosensitivity warning: “Some of our exhibits contain lighting that may trigger individuals with photosensitivity.”
Prams are banned, storage is at the entrance
“The museum space is inaccessible for prams/strollers but pram storage is available at the entrance.”
Small and medium lockers are available for bags. No food or drink is allowed in the museum space, though snacks and drinks are sold in the gift shop. Smoking and vaping are banned everywhere.
Dogs: “Only service dogs allowed.”
The opening hours are marked as tentative
The museum is candid that its own timetable is a guide.
“The information below is tentative. Please verify the schedule in the ticketing app before your visit.”
Monday to Thursday: 10am to 5:30pm.
Friday: 10am to 7pm.
Saturday: 9:30am to 7:30pm.
Sunday: 9:30am to 6pm.
And: “Schedule subject to change on special days.” Given late entry is not permitted, confirm your slot in the Fever app rather than relying on the table.
Since 5 October there is also a seasonal layer: Halloween takes over from 5 October, with an add-on Trail, interactive storytelling and a Potion Lab over half term.
What a ticket costs, and how to change it
Starting prices on the museum’s own page are £18.50 for children and £24 for adults. Be careful with third-party listings, which sometimes swap the two figures.
Tickets are sold through the Fever app and website. Everything is contactless, so there is nothing to print.
Transfers are easy: “you can transfer your tickets to anyone for free. It is as easy as clicking ‘Transfer Tickets’ on your ticket in the Fever App.”
Changes follow the same rule as other Fever venues: “Subject to availability, changes of date and/or time are permitted up to 48 hours before the start time of your experience… Refunds are not allowed under any circumstances.”
There is a box office on site, “however, tickets may be sold out by the time you arrive.”
What is inside
More than 50 interactive exhibits, on a self-guided visit of about 90 minutes. The named rooms are the Zero Gravity Room, the Paradox Sofa, the Camouflage Room, the Reversed Room, the Paradox Tunnel and the Infinity Well.
Photography is encouraged. “Many of the exhibits are intentionally photographic.” There is no dress code, and a casual look is fine.
Where it is
Paradox Museum London, 90 Brompton Road, London SW3 1JJ, directly opposite Harrods.
By tube: the Piccadilly line to Knightsbridge, Harrods exit. By bus: Harrods stop, routes 14, 74, 414, N74, N97, C1 and DL-1.
There is no car park, though several multi-storey car parks are within a short walk.
How to plan it
Arrive on time. Late entry is not permitted.
Confirm your slot in the Fever app. The posted hours are tentative.
Teenagers aged 14 to 17 can enter alone with photo ID, but need an adult to sign for the Zero Gravity Room.
Carer: apply in advance for a voucher, and it does not cover Zero Gravity.
Wheelchair user: the Zero Gravity Room is not accessible, and a few exhibits are not step-free.
No pram inside: storage is at the entrance.
No refunds. Change a booking more than 48 hours ahead.
Paradox Museum London
- Address
- 90 Brompton Road, London SW3 1JJ
- Nearest
- Knightsbridge on the Piccadilly line, Harrods exit. Harrods bus stop for routes 14, 74, 414, N74, N97, C1 and DL-1. No car park, though several multi-storey car parks are a short walk away
- Hours
- Tentative, to be verified in the ticketing app: Monday to Thursday 10am to 5:30pm, Friday 10am to 7pm, Saturday 9:30am to 7:30pm, Sunday 9:30am to 6pm, and subject to change on special days. Late entry is not permitted
- Booking
- Online through Fever, or at an on-site box office subject to availability. Changes are allowed up to 48 hours before the start time, subject to availability, and refunds are not allowed under any circumstances
- Price
- From 18.50 pounds for children and 24 pounds for adults. Under 4s free. Tickets are sold through Fever and can be transferred to anyone for free
- Standing
- An interactive museum of more than 50 optical illusions and paradox-inspired exhibits opposite Harrods, taking about 90 minutes, including the Zero Gravity Room, the Paradox Tunnel and the Infinity Well
How to get in
Late entry is not permitted, so arrive at the time on your ticket. Children under 14 need a paying adult and 14 to 17 year olds can visit independently with photo ID, but anyone under 18 needs an adult who consents to the terms on site before entering the Zero Gravity Room. Carer tickets are free by voucher, must be bought with another full price ticket, and do not include the Zero Gravity Room, which is also not wheelchair accessible. Prams cannot enter and are stored at the entrance. There is no seating and no hearing loop, and some exhibits contain lighting that may trigger photosensitivity.
Where to go next
Harrods is directly opposite, and Bubble Planet and the Mundo Pixar Experience are the other timed immersive walkthroughs.
Frameless and Outernet London cover the rest, and unique things to do in London has more.
Questions we get asked
Can you arrive late to the Paradox Museum London?
No. The museum states that you should arrive at the time stated on your ticket and that late entry is not permitted. That is stricter than other timed immersive venues: Bubble Planet allows arrival up to 30 minutes after your slot, and the Mundo Pixar Experience asks you to arrive 10 minutes early and may refuse latecomers.
How old do you have to be to go in the Paradox Museum alone?
14, with valid photo ID, which can be purchased on site. Children under 14 must be accompanied by a paying adult at all times, and children under 4 enter free. Anyone under 18 who wants to enter the Zero Gravity Room must be accompanied by an adult aged 18 or over who consents to the exhibit's terms and conditions on site and supervises them.
Is the Paradox Museum wheelchair accessible?
Mostly. The museum says the majority is wheelchair accessible, but the Zero Gravity Room is not, and a few exhibits are not step-free or contain uneven flooring or narrow pathways. There is no seating, as it is a walkthrough. There is no hearing loop and only one exhibit has audio, so it is almost completely accessible to Deaf visitors, but many optical illusions are hard for visually impaired visitors.
How much is the Paradox Museum London?
Starting prices on the museum's own page are £18.50 for children and £24 for adults, with children under 4 free. Tickets are sold through the Fever app and website and can be transferred to anyone for free. Changes of date or time are allowed up to 48 hours before, subject to availability, but refunds are not allowed under any circumstances.
Does the Paradox Museum offer a free carer ticket?
Yes, one free pass for a Personal Assistant or support worker, but you must contact the museum with proof first and they send a voucher code to buy the free ticket. Carer tickets cover general admission only and do not include the Zero Gravity Room, and each must be purchased alongside at least one other full price ticket.
Can you take a pram into the Paradox Museum?
No, the museum space is inaccessible for prams and strollers, but pram storage is available at the entrance. Small and medium lockers are available for bags. Food and drink are not allowed inside, though the gift shop sells snacks and drinks.
What are the Paradox Museum London's opening hours?
The museum lists them as tentative and asks you to verify your slot in the ticketing app: Monday to Thursday 10am to 5:30pm, Friday 10am to 7pm, Saturday 9:30am to 7:30pm and Sunday 9:30am to 6pm, subject to change on special days. Since late entry is not permitted, confirming your slot matters more here than elsewhere.
Written by Robert J Wills, no. 406 in the guide.
Last checked 10 October 2026 against the venues' own published information. Nobody pays to appear here and we take no bookings.
