Mill House and Studio

Location: Hampshire

, UK

Status: Built

Service: Architecture, Interiors

Area: 456m² / 4,900ft²

2018-23

A Grade II listed water mill on the River Test comes with an obvious constraint: a protected historic structure, a Site of Special Scientific Interest, and a client brief that asks for something entirely new. The couple commissioning the project needed dedicated studio and workshop space for their practices, specialist picture framing and performance design, alongside a reconfigured and extended home. The challenge was to add to an already layered historic site without diminishing it.

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We designed a single-storey studio annexe that mirrors the plan of the existing mill, positioning it in dialogue with the mill house across the garden. Heat-treated sycamore, locally sourced and native to the area, clads the structure; it will weather over time, gradually losing itself against the boundary tree line. Inside, the two studios are planned around specific working practices: a north clerestory brings consistent, glare-free light into the woodworking workshop; a south oculus introduces human scale and marks the relationship back to the river and mill house; large rooflights meet the high light levels needed for detailed studio work. The material language, timber, zinc and corrugated roofing, references the light industrial heritage of the site rather than reaching for something picturesque. Full plywood wall linings give complete fixing flexibility for tools and materials, and a large pocket door between the two studio spaces controls noise and dust without sacrificing floor area.

The mill house itself has been stripped of later accretions and reconfigured to maximise living space. Working closely with Hampshire conservation officers and the SPAB, we exposed and retained a concealed bread oven discovered during enabling works, which set the tone for the kitchen: salvaged materials, lime plaster, linseed oil on lath-and-plaster walls. A water-source heat pump installed in the mill race now powers heating across the site, replacing fossil fuel systems without disturbing the original timber mill mechanism.

The result is a working studio and home that takes the full weight of the site's history and ecology seriously, and adds to it on its own terms.

Awards & Press

  • RIBA South Awards 2025 — Shortlisted link

  • Architects' Journal Small Projects 2025 — Finalist link

  • Wood Awards 2025 — Shortlisted link

  • Architects' Journal, 11 December 2024: Cooke Fawcett completes artists’ workshop by Grade II-listed water mill (Fran Williams) link

  • Conservation and Heritage Journal, February 2024: Cooke Fawcett’s Mill House and Makers’ Workshop, River Test, Hampshire link

  • Building Design, 19 December 2024: Cooke Fawcett reimagines historic mill house with new studio and workshop (Ben Flatman) link

  • Dwell+, 13 November 2024: My House: They Said Farewell to London and Moved Into a 17th-Century Water Mill (Mandi Keighran) link

  • Architecture Today, November 2024: Mill House and Makers’ Workshop link

  • Architects' Journal, 2 February 2021: Cooke Fawcett’s artists’ workshop by Grade II-listed water mill approved (Fran Williams) link

Process

Concept design

Construction photos

Original site observations

Drawings

151.

Mill House and Studio

Year:

2018-23

Restrictions: Grade II Listed, SSSI


CF team: Oliver Cooke, Francis Fawcett, Sebastian Birch, Eden Day

Structures: Philip Cooper (CAR Ltd.)
Heritage: Architectural History Practice
Ecology: Hants Ecology, CA Ecology
Arboriculturalist: David Sykes
Contractor: Paul Roper Traditional Building and Carpentry

Photos: James Brittain (completed), Peter Landers (construction)

Read more about how we work on arts projects.

Read more about how we work on heritage projects.