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Project

The project at Clandon Park

Heritage bricklayer repointing historic brick arches at Clandon Park
Repointing historic brick arches, Clandon Park | © National Trust Images / Andrew Shaylor

The Clandon Park Project is one of the largest and most complex projects the National Trust has ever undertaken. The fire of 2015 resulted in the sad loss of many important architectural spaces and historic artefacts. At the same time, it also created opportunities to encounter, understand and enjoy a building like Clandon in new and exciting ways. An expert and dedicated team is working tirelessly to preserve the surviving house and seize these opportunities.

Clandon Park has always been a special and much-loved place. Over the years, it was the backdrop to important moments for many people, especially as a popular wedding venue. For this reason, in the years since the fire we have worked hard to enable people to visit or revisit the house and gardens. 

We’ve welcomed over 75,000 people to experience the surviving house – both people local to Clandon and visitors from across the country. Their responses have taught us how powerful and evocative Clandon Park is in its laid bare form. We’ve seen artists, scientists, engineers, designers, tradespeople and young children, all gasping in awe. They’ve consistently asked us questions about how the house was built and crafted – a story dramatically revealed by the fire – and about the community of people who helped make it.  

Our vision builds on these responses with a focus on celebrating what survived the fire and shaping a new people and community-focused chapter in Clandon’s remarkable history.

You normally don’t see the skeleton and get to see how it all began. I’ve seen quite a few properties – this was the icing on the cake.

A quote by Tour Visitor, 2021

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Watch a video about our plans for Clandon Park

Hear about how we're planning to celebrate the many hands who made Clandon from the people caring for this remarkable house.

Our architectural plans for Clandon Park

An insight into the making of 18th-century great houses. Exhibits from the important Clandon Park collection. A cultural venue. A visit to Clandon Park will be a National Trust experience like no other.

The project team is working with award-winning architects Allies and Morrison, and a wider design team including Purcell conservation architects, to make sure the house is preserved and enhanced carefully and sympathetically. 

With plans grounded in the house’s history and character, our vision is to carefully conserve and creatively curate Clandon Park as ‘a country house laid bare’ – a place that celebrates the beauty of the surviving building and the many stories of the community of people who made and crafted it.

Our plans at a glance

Clandon Park Roof Terrace
Illustrative view on the roof terrace looking north past the Marble Hall rooflight, Clandon Park, Surrey | © National Trust Images

How we’re staging the conservation and new-build works 

We’re delivering the conservation and construction elements of the project in two parts: the Essential Works and the Main Scheme.  

The Essential Works are repairs and conservation required to make the surviving building safe and stable and need to happen regardless of any other architectural plans. These works have deliberately been separated from our main plans for Clandon and have already received listed building consent.  

The Essential Works are split into the following packages: 

Pilot Works Package (complete): trialled masonry repairs to the southeastern corner of the building, included dismantling and rebuilding a section of roof-level balustrade and one chimney, to find the best solutions to use in later conservation packages. 

House Works Package (ongoing): preparing the building for Conservation Packages 1 – 3 through surveys and investigations relating to historical significance and structural engineering, including protection of fragile building fabric using internal scaffolding installed ready for the conservation packages. This package also included a survey of the surviving plasterwork in preparation for the Main Scheme Works. 

Conservation Package 1 (complete): small-scale like-for-like masonry repairs to external elevations and internal walls in the southern and central cells of the house. 

Conservation Package 2 (ongoing): structural masonry repairs and work to existing steel structures in the southern and central cells of the house, including repairs to chimneys, new lintols, and balustrade replacement and repair.  

Conservation Package 3: structural masonry repairs to the north end of the house, including protection of fragile building fabric installed from internal scaffolding.  

The Main Scheme Works are the conservation and architectural interventions required to make the house a welcoming and fully functional building ready to fill with historic collections, cultural activities, and social life. Plans include the introduction of stairs, a lift, and generous walkways to enable visitors to move around the building, a new public roof terrace, and the installation of utilities and facilities. These works are subject to a planning application and a listed building consent application, the plans for which have been created by a multi-disciplinary team led by the Trust and lead architects at Allies and Morrison.  

The Clandon Park project: a timeline

2024

Building to the next phase

January 2024

The replacement of the scaffold roof is completed.

Internal scaffolding is erected in the Saloon and State Bedroom ready for Pilot Works trialling masonry repairs to begin in February.

The specialist consultant leading on plaster stabilisation trials investigates a way of introducing structural physical support behind the surviving plaster where timber lathe and battens have burnt away.

February 2024

Work begins to dismantle a chimney to be rebuilt as a pilot for the conservation methods to be used on the remaining chimneys.

Cores are taken from basement ceiling timbers in a dendrochronology survey, which will enable us to date the construction of this part of the house more accurately.

Recruitment of new youth volunteering roles in partnership with local youth charity and roles in the Access Group is completed, ready for consulting on the Main Scheme design for RIBA Stage 3.

March 2024

Public exhibitions are held in Guildford and West Clandon where we share our plans for Clandon, followed by focus groups for engagement with specific audiences.

The curatorial team visit site to inform their ongoing work to develop the design of the visitor experience layout and displays.

Contractors carry out strength testing of the bricks and mortar to understand the need for future structural interventions during Conservation Package 3.

Work begins on the restoration and repair of the external brickwork.

Conservation of the State Bed textiles continue at the Trust’s Textile Conservation Studio at Blickling Hall.

The curatorial team visit the Royal Oak Foundation Conservation Studio at Knole to see the progress of a conservation trial of ceramic fragments.

May 2024

The Main Scheme design team review the dismantled balustrades at roof level to understand the fire damage.

A specialist timber consultant surveys the floorboards in the sole-surviving first floor room ahead of their removal and storage, allowing access to survey the back of the Speaker’s Parlour ceiling.

June 2024

The statues of Discophorus and Venus, strikingly visible in the Marble Hall for centuries, are removed from their niches for conservation. The conservator cleans the sculptures and carries out emergency consolidation in-situ from the scaffold platform before they are moved out of their niches into a bespoke crate with strapped support. The crates are moved onto a hoist and lowered from the scaffold platform to the ground floor, then down a set of steps at the entrance before being lifted into a lorry. Discophorus and Venus are in their temporary home at the collection store, before being sent to the Conservation Studio 

July 2024

Public exhibitions are held in Guildford and West Clandon where we share our plans for Clandon.

Work continues on the brick and masonry repairs included in Conservation Package 1.

The dying oak tree that stood for decades next to Hinemihi, the Māori meeting house, is felled. The hope is to use the timber in the house and for the new meeting house frame.

August 2024

Pilot Works trialing masonry repairs to the southeastern corner of the building, including a finished chimney with new pots, are completed.

Cleaning trials take place on the marble busts salvaged from the Marble Hall after the fire. The curatorial team are researching who they represent, who made them, and how they can be used as creative inspiration for future community art projects.

International plaster experts from the University of Applied Sciences and Arts of Southern Switzerland (SUPSI) visit to assess the condition of the Speakers’ Parlour ceiling.

The large twentieth-century steel truss at second-floor level in the Marble Hall is removed by specialist contractors.

September 2024

Conservation Package 1 covering small-scale like-for-like masonry repairs to external elevations and internal walls is completed.

Two public workshops are delivered led by heritage stonemasons as part of our heritage skills and training pilots.

Our free open days for Heritage Open Days attended by 400 people include talks, displays, art workshops, and handling collection items from the house.

Trials of ceramic conservation continue.

October 2024 

Conservation Package 2 covering structural masonry repairs and work to existing steel structures in the southern and central cells of the house starts on site. 

The exhibition ‘The Lounge’, our first creative commission from our partnership with the Lightbox Gallery in Woking, opens.

Twenty stonemasonry and joinery apprentices from our stonemasonry contractors, the National Trust, and Historic England, attended our heritage skills and training pilot focused on careers in the heritage sector. After seeing stonemasonry and joinery onsite, they took part in practical workshops.

November 2024

Listed Building Consent for Conservation Package 3 is granted. Work on CP3, which focuses on structural masonry repairs to the north end of the house, will start in the new year. 

Following years of meticulous research, much consultation, and a detailed design process following RIBA Stages 1 to 3, the Main Scheme Planning and Listed Building Consent applications are submitted to Guildford Borough Council. The applications we have submitted reflect our vision and plans for Clandon and have been shaped by the many conversations – with specialists, locals and the public – held since the fire.

Frequently asked questions

Children walking through the meadow in July at Clandon Park, Surrey

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