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Mill Green Museum and Welwyn Roman Baths are now closed for winter. We are still running small craft event sessions, warm spaces afternoons and Pier Pressure's exciting escape room. See the What's On section and the link below for more details.

Visit us for an Escape Room Adventure in December! https://welwyn.pierpressure.co.uk/escape-room/a-christmas-carol/

Check out our What's on page for events and upcoming activities!

Mill Green Museum and Working Mill

Mill & Museum

Mill & Museum

Welwyn Roman Baths

Welwyn Roman Baths

Mill & Museum

Visit Us

Hatfield's 18th Century restored working watermill on the River Lea is a great day out for all the family. See the mill in action and learn about this ancient craft from our friendly Miller. Explore the history and culture of the local area through our changing exhibition programme.

More about the Mill
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Explore our Events

Join us for our events, from family crafts to baking workshops and live performances. Click below to find out more.

Book an Event
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Miller's Kitchen

Open Saturdays and Sundays... Enjoy a cream tea with homemade scones made from flour fresh from our mill and other light refreshments.

Find about Miller's Kitchen
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Browse our range of flour

Buy our organic stoneground flour made fresh from the mill.

Shop now

Welwyn Roman Baths

Visit our sister site and step back in time 1,800 years to discover the fascinating remains of this ancient Roman Bath house in Welwyn village.

Open Saturdays 10am - 4pm.

Please note, Welwyn Roman Baths are CLOSED on Saturday 18 November.

Find out more

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Excellent talk from the miller! Really enjoyed looking round the mill

Visitor to the Watermill, May 2022

Low tech interaction gave the children lots to engage with. Excellent curation of artefacts gave a visual experience of a Roman Baths.

Visitor to Welwyn Roman Baths, May 2022

Friendly and knowledgeable staff. We all found it so interesting and the children really enjoyed the interactive displays and games

Visitor to Welwyn Roman Baths, February 2022

The lemon drizzle cake is as soft as a cloud and the scones are delicious warmed or not. I love the Emperor Grey tea, never had it before

Visitor to the Miller's Kitchen, May 2022