All bins will be collected a day later than usual during the week of the Bank Holiday Monday (29 Aug - 3 Sept). Click here for more info.

Welwyn Roman Baths

Tunnel through time to the world of the Romans - with a visit to Welwyn Roman Baths. You can't take a hot bath any more - the boiler went out about 1,800 years ago when the Romans left!

Roman Baths Entrance Tunnel
Roman Baths Entrance Tunnel
But you can see some fascinating remains which have survived from their time. Learn about how the Romans liked to relax with an elegant culture of bathing, and admire their creativity and style. 
Welwyn Roman Baths
Welwyn Roman Baths
The bath house remains are a scheduled ancient monument and were once part of a fine villa. The layout of the cold, warm and hot rooms and the heating system are remarkably well preserved.  The baths are ingeniously preserved in a steel vault under the A1(M) motorway at its junction with the A1000 - just off the central roundabout of the Welwyn By-Pass.  You can find out how this vault was built.

Welwyn Roman Baths
Also on display are archaeological finds from the Welwyn area and an exhibition devoted to the history of the site, which was uncovered during the 1960s and 70s by the Welwyn Archaeological Society.

pdf icon Click here for more information about the bath-house site [2MB]  and the Dicket Mead Villa that it was originally part of.

or pdf icon Click here for more information about the Baths in German [228KB]

or pdf icon Click here for more information about the Baths in French [213KB]

or pdf icon Click here for more information about the Baths in Polish [701KB]

Summer Holiday Activities at Welwyn Roman Baths

Activities take place between 2 - 4pm. No booking required but due to the drop in nature of these activities places are limited and are provided on a first come first served basis.  Children must be accompanied by an adult. Suitable for ages 4+.  Activities cost £3 per child.  Free admission for one adult with each child taking part in a paid activity.  Admission is otherwise £3.50 per adult.

Monday 29 AugustBrilliant Bags!Decorate a canvas bag with Roman designs, for all your shopping needs!


Saturday 10 September Heritage Open Day at Welwyn Roman Baths

For one day only Welwyn Roman Baths throws open its tunnel doors with free access to all visitors on this day as part of our National Heritage Open Day events. Children can try our free Little Diggers Activity and become an archaeologist for an afternoon! Excavate our skeleton and discover amazing finds.


Opening Times

The baths are open to the public from January to November but closed throughout December.

  • Weekends and Bank Holidays (includes Easter 25 - 28 March and Bank Holiday Mondays on 2 an 30 May).   2 - 5pm, (or dusk if earlier).  Last admission is at 4.30 pm.
  • Hertfordshire School Holidays 2 - 5pm (or dusk if earlier) except for the Christmas holidays when we are closed. 
  • The next school holiday opening period ends on 11 September

As the site is open for limited hours please phone to discuss or email Mill Green Museum for more details regarding the bath-house.


  • Children under 16 FREE
  • Adults £3.50
  • Evening and group visits such as Schools, Cubs, Brownies, adult clubs and societies can easily be accommodated by appointment. Please email or phone to book first. We can open for your group or an evening visit by special arrangement - phone to discuss or email Mill Green Museum.

Annual Admission £20.00 *

For one adult for unlimited FREE entry to both Mill Green and Welwyn Roman Baths for twelve months.  Please support us by buying this ticket. A 50% discount is offered for a second adult living at the same address.

* Excluding any special event days.


  • Car parking on site.
  • Visitor toilet facilities are available on site.
  • Picnic area.
  • Refreshments can be bought from nearby Welwyn Village.

Access for Everyone

We are committed to making our activities, premises and exhibitions accessible to everyone. Car parking includes a disabled bay, entrance is approximately 200 metres from car park on a level path.  All areas are fully accessible. Toilets have full access.   Access for Everyone provides more details.


Welwyn Roman Baths,

Welwyn Bypass,



Travelling By Car

Museum map
Museum map
The satnav code for the Roman Baths is AL6 9FG.

Leave the A1(M) at Junction 6.

  • If travelling from the South:
    • At the roundabout at the end of the slip road go forward (2nd exit)
    • Bear left
    • At the next roundabout turn right (3rd exit)
    • Welwyn Roman Baths are immediately on the left
  • If travelling from the North:
    • At the roundabout at the end of the slip road turn right (3rd exit) under the motorway
    • At the next roundabout go right around (3rd exit) to return on the same road
    • Welwyn Roman Baths are immediately on the left

Please note there are no significant buildings to be seen as the museum is underground.  There is parking on site.

Travelling By Train

The Roman Baths are situated 1.3 miles from Welwyn North Station.

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