Regarded as Charles Rennie Mackintosh’s domestic masterpiece, the Hill House was built in 1904 for publisher Walter Blackie. Since then the house has been absorbing rain, putting the building and its unique interiors at risk.

An innovative structure to protect an architectural masterpiece

As part of the National Trust for Scotland’s ambitious restoration plans for the Category A listed property, we are constructing the pioneering box structure that has been designed to envelop and save the house. Robertson is also building a temporary visitor centre to ensure visitors from around the globe can still view what is commonly known as Mackintosh’s residential masterpiece.

This construction project sees an innovative chainmail box structure erected around the building. The mesh pavilion – designed by architects Carmody Groarke – will help the Hill House dry out after more than a century of absorbing rain, allowing further conservation work to be carried out on the house.

Collaborative procurement process

The Hill House Box project was procured through Scape Venture, a collaborative procurement consultancy and construction route, which supports public/private partnerships and helps the charity sector achieve best value in their programmes of work.

“These careful conservation works will preserve and celebrate an important piece of our culture and history. Robertson has a strong track record of restoring heritage sites, a great example of which is the Spanish City restoration in Whitley Bay.”

– Mark Robinson, Scape Group Chief Executive

Returning a national treasure to visitors

The Box is currently open to visitors to allow them to use raised walkways to see the Hill House from a new angle while offering views over the Clyde estuary.



Project team

Architect: Carmody Groarke
Principal contractor: Robertson Central West


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