The Royal Observatory Greenwich is one of London’s most important historic science attractions and the home of the Prime Meridian. Founded by King Charles II in 1675, the Observatory helped transform astronomy, navigation and timekeeping. Today, visitors can explore Flamsteed House, stand on the Prime Meridian and see historic instruments while enjoying panoramic views across Greenwich and London.
Quick Answer
As of September 2026, Royal Observatory Greenwich tickets cost £24 for adults, £18 for students with valid ID and £12 for children aged 4–15; under-4s enter free. Admission includes the Prime Meridian, Flamsteed House and other open historic areas. The Peter Harrison Planetarium is currently closed for refurbishment.
Key Takeaways
- Standard Royal Observatory admission currently costs £24 for adults, £18 for students and £12 for children aged 4–15.
- The ticket includes access to the Prime Meridian line, Flamsteed House and other open parts of the historic Observatory.
- The Peter Harrison Planetarium and Astronomy Centre are closed during the First Light transformation project.
- The Observatory is scheduled to enter a temporary closure in November 2026, so check current opening information before travelling.
- Guided tours, group discounts and a Royal Museums Greenwich Day Pass are available, but some require separate or advance booking.
The Royal Observatory forms part of the Maritime Greenwich UNESCO World Heritage Site, which was inscribed in 1997. The Observatory itself was founded in 1675, with John Flamsteed appointed as the first Astronomer Royal. Sir Christopher Wren and Robert Hooke were involved in designing the original Observatory building, now known as Flamsteed House.
Ticket prices for the Royal Observatory Greenwich
The old £16 adult ticket price is no longer current. According to Royal Museums Greenwich’s current ticket information, standard Royal Observatory prices in September 2026 are:
| Ticket type | Current price |
|---|---|
| Adult, age 16+ | £24 |
| Student with valid ID | £18 |
| Child, age 4–15 | £12 |
| Child under 4 | Free |
A separate general senior concession is not currently listed in the standard Royal Observatory price table. Students do receive discounted admission with valid ID.
Other discounts are available. Royal Museums Greenwich currently lists £3 tickets for qualifying visitors receiving benefits including Universal Credit, Pension Credit, Income Support and several other eligible benefits. A carer accompanying a disabled visitor can receive free admission. Discounts are also offered through selected schemes and memberships such as Art Fund, Museums Association and English Heritage.
Note: Ticket prices, opening areas and availability can change during the First Light transformation. Check the official ticket calendar before paying or travelling.
What does a Royal Observatory Greenwich ticket include?
Standard admission gives you access to the open historic areas of the Royal Observatory. Current highlights include:
- The Prime Meridian line at longitude 0°
- The Meridian Courtyard while it remains open during the current phase of work
- Historic Flamsteed House
- John Harrison’s marine timekeepers and displays about longitude and timekeeping
- The Great Equatorial Telescope when that area is open
- Historic astronomy, navigation and Greenwich Mean Time displays
- An audio-guide experience
The Great Equatorial Telescope is a 28-inch refracting telescope installed in 1893 and is one of the Observatory’s best-known historic instruments.
The Peter Harrison Planetarium is not currently included or available at the Observatory because it is closed for refurbishment.
Current opening status and the First Light project
The Royal Observatory is undergoing a major transformation called First Light. Work began in autumn 2025 and is due to continue until spring 2028.
As of September 2026, the historic Observatory remains open, but Royal Museums Greenwich says the site will enter a temporary closure in November 2026 as the next phase of construction begins. Current Royal Observatory tickets are being sold only for dates before that closure.
Warning: If you are planning a visit for November 2026 or later, do not assume normal Royal Observatory admission will be available. The main site is entering a temporary closure. Royal Museums Greenwich plans to reopen the Meridian Courtyard in summer 2027, while completion of the full First Light project is expected in spring 2028.
In September, the Observatory’s published summer schedule is generally 10am–6pm with last entry at 5pm. Standard opening hours outside the extended summer schedule are normally 10am–5pm. Special events, construction work and private events can cause earlier closures, so check the official Observatory closure page shortly before visiting.
Guided tours at the Royal Observatory Greenwich
A guided tour can add useful context to the historic clocks, telescopes, people and scientific discoveries associated with Greenwich. Rather than relying on a generic tour, visitors can currently choose from specific Royal Observatory tours while the relevant areas remain open.
Royal Observatory Treasures Tour
The Royal Observatory Treasures Tour is currently scheduled daily at 11am and 3pm and lasts approximately 60 minutes.
Current additional tour prices are:
- Adult: £5
- Student: £3.50
- Child: £2.50
- Royal Museums Greenwich Members: free
You must also have Royal Observatory admission to join the Treasures Tour. The experience explores the Observatory’s history, the astronomers who worked there and important objects connected with time, space and navigation.
Some parts of the tour involve stairs. Because the site contains historic buildings, areas such as the Octagon Room or Great Equatorial Telescope may not be accessible to every visitor. An alternative route can be requested, and visitors needing a step-free tour should contact the Royal Museums Greenwich Bookings Team in advance.
Lunar Tours and free talks
Royal Museums Greenwich also lists Lunar Tours at 1.30pm daily during the current programme, with the same £5 adult, £3.50 student and £2.50 child supplement. Volunteer talks and selected activities may be included with normal admission.
Tour schedules can change as the First Light project progresses, so confirm the programme for your exact visit date before booking.
Self-guided tours at the Royal Observatory Greenwich
You do not need to join a guided tour to understand the Observatory. Self-guided exploration works well if you want more control over how long you spend with the Prime Meridian, historic clocks or individual galleries.
Royal Museums Greenwich provides an audio-tour option, and its accessibility information also lists a free Royal Observatory audio tour through the Smartify app. The tour contains 17 chapters covering areas and objects including Flamsteed House, the Octagon Room, Harrison’s clocks and the Meridian Courtyard.
Downloading the app before arriving and bringing your own headphones can make the self-guided option easier. BSL-supported material is also available for visitors who need it.
Pro Tip: If your main goals are the Prime Meridian photo, Flamsteed House and the historic timekeeping displays, start with those areas before spending time on optional talks. Construction-related access can change, so prioritizing your must-see exhibits reduces the chance of missing them.
Planetarium shows at the Royal Observatory Greenwich
The Peter Harrison Planetarium is currently closed. It should not be planned as part of a standard Royal Observatory visit in 2026.
The Planetarium and Astronomy Centre closed on 8 September 2025 as part of the First Light transformation project. Royal Museums Greenwich says the refurbishment is expected to continue until spring 2028.
Visitors who still want a planetarium experience can check the temporary astronomy programme at the National Maritime Museum. During the refurbishment, Royal Museums Greenwich has moved its live astronomy and planetarium offer down the hill as part of its Astronomers Take Over programme.
The historic Royal Observatory itself remains a different experience: visitors can still explore its timekeeping, longitude and astronomy heritage while the site is open during the current construction phase.
Special events and exhibitions at the Royal Observatory Greenwich
The Royal Observatory continues to run talks, demonstrations, tours and temporary experiences during the First Light project, although the programme is more changeable than it was before construction began.
Current programming can include Observatory Unlocked sessions with Royal Observatory Explainers, specialist guided tours, astronomy events and temporary installations. Some activities are included with Observatory admission, while others require an additional ticket.
Because events may run for only a few days or weeks, check the Royal Museums Greenwich What’s On listings for your exact visit date instead of assuming an event mentioned in an older guide is still running.
Accessibility and facilities at the Royal Observatory Greenwich
The Royal Observatory provides accessibility support, but its hilltop setting and historic buildings create some important limitations. The official Royal Observatory accessibility guide should be checked by visitors with specific mobility or sensory requirements.
Current support includes:
- Free admission for a carer accompanying a disabled visitor
- A limited number of wheelchairs that can be pre-booked
- An accessible toilet in the Astronomers’ Garden
- Hearing loops at information desks
- BSL-supported and subtitled material at selected locations
- Ear defenders available on request
- A sensory map
- Assistance dogs welcomed
Not every historic room is fully accessible. For example, the Octagon Room does not have lift access. Cobblestones in the courtyard can also be uneven, and some historic routes include stairs.
The Observatory sits at the top of a steep hill in Greenwich Park. The main walk from the National Maritime Museum takes approximately 10–15 minutes and includes a steep section. Royal Museums Greenwich also identifies a less steep route for wheelchair users that takes longer.
Group bookings and discounts at the Royal Observatory Greenwich
Royal Museums Greenwich offers discounted rates for pre-booked groups of 15 or more. Group bookings made through the group-booking system must currently be arranged at least 72 hours in advance, and the discount is not offered to groups simply walking up on the day.
Published Royal Observatory group rates for 15+ visitors are currently:
| Group ticket | Price per person |
|---|---|
| Adult | £20.40 |
| Student | £15.30 |
| Child | £10.20 |
Schools and organized educational groups have separate booking resources and programmes. Because the Observatory’s availability changes during the First Light works, organizers should confirm which areas will be open on the intended date before arranging transport or other activities.
Combined tickets with other attractions in Greenwich
The main combined ticket is the Royal Museums Greenwich Day Pass. It combines admission to the Royal Observatory and Cutty Sark on the same day.
Current Day Pass prices are:
- Adult: £38
- Student with valid ID: £28.50
- Child: £19
- Under 4: free when registered with a paying adult
The National Maritime Museum and Queen’s House are also nearby, but their standard general admission is free, so they do not need to be treated as paid components of the Day Pass.
The Day Pass can be useful if you want a full Greenwich sightseeing day built around both the Observatory and Cutty Sark. Both attractions use timed admission, so check the selected entry times carefully when booking.
How to purchase tickets for the Royal Observatory Greenwich
The easiest option is to buy tickets through the official Royal Museums Greenwich booking system. Select your visit date and timed-entry slot, choose the correct ticket types and complete payment online. Tickets are then sent by email.
On-the-day admission can sometimes be purchased at an admissions desk, but Royal Museums Greenwich recommends booking online in advance because same-day availability is not guaranteed.
This is particularly important in autumn 2026 because the Observatory is approaching its temporary First Light closure and available dates are limited.
Before booking, check three things:
- Your visit date: confirm that the Observatory is open.
- Your ticket type: check whether you qualify for student, benefits, membership, carer or other discounted admission.
- Your extras: guided tours can require an additional ticket on top of Observatory admission.
Tips for visiting the Royal Observatory Greenwich
Plan around the historic site’s layout rather than treating the Observatory like a single indoor museum. You may move between historic rooms, the Meridian Courtyard and outdoor areas, and Greenwich Park itself includes steep paths.
- Book ahead: advance booking reduces the risk of arriving when your preferred time slot is full.
- Check closures again shortly before travelling: construction and special events can affect individual areas or opening times.
- Wear comfortable shoes: the Observatory sits on a hill and Greenwich Park involves substantial walking.
- Allow time for the views: the hilltop setting provides one of Greenwich’s best panoramas across London.
- Download the audio guide before arrival: this is useful if you prefer exploring independently.
- Plan planetarium activities separately: the Peter Harrison Planetarium at the Observatory is currently closed.
- Tell the venue about access needs in advance: some historic rooms and stair routes cannot accommodate every visitor.
The Royal Observatory is most rewarding when you combine the famous Prime Meridian photo with the story behind it. Flamsteed House, Harrison’s marine timekeepers, the historic telescopes and the development of Greenwich Mean Time explain why this hill in Greenwich became central to global navigation and timekeeping.
Frequently Asked Questions
What are the ticket prices for Royal Observatory Greenwich?
As of September 2026, standard admission is £24 for adults, £18 for students with valid ID and £12 for children aged 4–15. Children under 4 enter free.
What does a Royal Observatory Greenwich ticket include?
Standard admission includes the open historic parts of the Royal Observatory, including the Prime Meridian line, Flamsteed House and displays about longitude, timekeeping and astronomy. The Great Equatorial Telescope is also included when its area is open.
Is the Peter Harrison Planetarium open?
No. The Peter Harrison Planetarium and Astronomy Centre are closed for the First Light transformation project. The refurbishment is expected to continue until spring 2028. Royal Museums Greenwich is providing a temporary planetarium experience at the National Maritime Museum during the closure.
Are guided tours available at the Royal Observatory Greenwich?
Yes, while the relevant parts of the site remain open. The Treasures Tour is currently scheduled daily at 11am and 3pm and lasts about 60 minutes. It costs £5 for adults, £3.50 for students and £2.50 for children in addition to Royal Observatory admission.
Can I purchase Royal Observatory Greenwich tickets in advance?
Yes. Royal Museums Greenwich recommends advance online booking because it guarantees your selected entry slot, while tickets purchased on the day are subject to availability.
Are there discounts for Royal Observatory tickets?
Yes. Students receive reduced admission, qualifying visitors receiving certain benefits can obtain £3 tickets, and carers accompanying disabled visitors receive free admission. Additional discounts may be available through selected membership schemes such as Art Fund, Museums Association and English Heritage.
Is the Royal Observatory closing in 2026?
Yes, temporarily. The Observatory remains open during the current phase of the First Light project, but Royal Museums Greenwich says the site will temporarily close in November 2026. The Meridian Courtyard is planned to reopen in summer 2027, with the wider transformation due for completion in spring 2028.
Sources
- Royal Museums Greenwich — Tickets and Prices — current admission, Day Pass and discount information.
- Royal Museums Greenwich — First Light Transformation — construction, closure and reopening timeline.
- Royal Museums Greenwich — Royal Observatory Tours and Talks — current guided-tour schedules, duration and prices.
- Royal Museums Greenwich — Royal Observatory Accessibility — mobility, sensory and facility information.
- Royal Museums Greenwich — History of the Royal Observatory — founding, longitude, Greenwich Mean Time and Prime Meridian history.
- UNESCO World Heritage Centre — Maritime Greenwich — World Heritage status and the Observatory’s role within the historic site.
