Our Role: Project Architect and Contract Administrator

Crosby Granger Architects were invited to design, tender and oversee the replacement of the dilapidated glasshouse and loggia at Leighton Hall, Lancashire.

Leighton Hall is a historic house dating from the 18th century, altered twice within the 19th century, with earlier remains, all set within extensive grounds, near the town of Carnforth in Lancashire. It is a family home which welcomes the public to visit the house and garden along with events including educational visits, weddings, venue hire and others.

 

The Victorian Glasshouse was part of the Paley and Austin works along with the west tower. This project proposed to restore the timber portion of the conservatory that was replaced in 2000. The replacement was in modern softwood, which had completely rotten, and the building had become unusable. Whilst carefully considering the overall appearance and heritage of this historically significant Grade II* listed building. The proposal sought to restore the aesthetic of the original Glasshouse and provide additional ancillary facilities within a new build extension.

 

All the of the existing metal work was carefully retained and refurbished for reuse. The existing open loggia was enclosed with painted timber doors that will match the existing window style. Under floor heating fed by a biomass unit has been installed to improve the thermal efficiency of the new building and in doing so the existing stone flags were recorded, carefully lifted and reinstated after the UFH was installed.

The proposed works needed to retain the original design of the glasshouse as a part of the overall aesthetic of the main front to Leighton Hall. A modern extension at the rear also provided discreet ancillary facilities for visiting groups.

The overall design of the extension to the rear is some-what modern and includes a shallow five degree pitched zinc standing seam roof contained within the service yard that will contrast yet compliment the adjacent historic building fabric and the new glasshouse.

Ancillary to the glasshouse, a new extension provides supporting facilities to the rear of the conservatory where it will be hidden from the front elevation of the hall. An existing stone wall to the rear of the conservatory forms one side of a service yard and had various lean-to buildings removed to accommodate the new design. A new opening in the stone wall with a Gothic arch allows access between the ancillary accommodation and the glasshouse which includes a new kitchen, toilets, disabled WC and small store.

RELATED PROJECTS

Eshton Hall

Eshton Hall

Crosby Granger Architects is honored to have led the award-winning restoration of Eshton Hall, a Grade II* listed country house in North Yorkshire. Our work addressed previous substandard repairs, focusing on roof and guttering systems to prevent water ingress and structural damage. This project exemplifies our commitment to preserving historic estates through sensitive, sustainable interventions.

Furness Abbey & Piel Castle

Furness Abbey & Piel Castle

We were appointed to carry out the historical research, assessment, and strategic management review, and develop and publish a Conservation Management Plan for Furness Abbey and Piel Castle, both in the Guardianship of English Heritage.

Grasmere St Oswald’s

Grasmere St Oswald’s

Appointed to work on the renowned St Oswald's Church in Grasmere, set within the idyllic village in the Lake District, Crosby Granger Architects is undertaking sensitive conservation efforts. Our focus includes preserving the church's historic features and ensuring its structural integrity, allowing this iconic place of worship to continue serving the community and visitors alike.

Thornthwaite Hall

Thornthwaite Hall

Crosby Granger Architects led the restoration of Thornthwaite Hall, a historic residence in the Lake District National Park. Our work includes addressing structural issues, conserving original features, re-rendering and updating its modest facilities to meet contemporary standards. By carefully balancing preservation with modernization, we ensure the hall's historical character is retained while enhancing its functionality for future use.

INSTAGRAM

A bold yet respectful transformation, rooted in the heart of the Lake District.

This film captures our journey in reimagining a long-overlooked home into a contemporary, design-led retreat — one that honours its agricultural past while opening up expansive views of the surrounding fells.

At the heart of everything we do is one simple idea: excellence in everything. That means being:

Technical – Experts in traditional materials and methods
Understated – Always respecting buildings and their surroundings
Committed – Designing sustainably and sensitively
Experienced – From castles to cottages, we’ve done it all
Specialist – In heritage conservation and contemporary interventions
Hands on – With care and attention at every step

From thermal upgrades using vapour-open materials to a discreet yet dramatic extension, this project is about harmony: between old and new, form and function, home and landscape.

#heritage #conservation #woodlandtrust #snaizeholme #vernaculararchitecture #nationalpark #craftsmanship #crosbygranger #traditionaltechniques #lakedistrict #historicbuildings #sustainablearchitecture
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