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Join us to celebrate the 50th Anniversary of the Welwyn Roman Baths on Saturday 26th July, featuring a special talk by Dr. Kris Lockyear of the Welwyn Archaeology Society and UCL. Click here for more information.

Mill Green Museum and Working Mill

Mill Green Museum

Mill Green Museum

Welwyn Roman Baths

Welwyn Roman Baths

Mini Millers Sessions

Mini Millers Sessions

Mill & Museum

Visit Us

Bush Hall Lane, Mill Green, Hatfield, AL9 5PD
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.

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Welwyn Roman Baths

Welwyn By Pass Rd, Welwyn, AL6 9FG
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 , closed in winter.

Welwyn Roman Baths
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Order Flour Now

BACK SOON - Buy our organic stoneground flour made fresh from the mill.

Miller's Kitchen

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

Visitor to the Watermill, May 2025

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, March 2023

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