About Vallis & Hall Conservation Architects

Vallis & Hall Conservation Architects is the new name for Jane Jones-Warner Associates, an award-winning RIBA Chartered Practice based in Chichester, West Sussex.


The Practice specialises in the conservation of historic buildings, heritage consultancy and new build projects, often in historic or sensitive settings.


West Dean College

Conservation and repair of the roof to West Dean House, focusing on the roofs of the historic college buildings. The repairs required a scaffold with temporary roof and due to the construction of the House, an independent scaffold had to be designed to span the existing building without taking any load off the existing structure. As

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Historic Mill

Works started on site in spring 2017 to this lovely grade II listed private house, formerly a working mill. Insensitive modern alterations were removed whilst carefully considered contemporary additions were introduced and conservation repairs carried out to enhance and protect the building’s heritage. Works included bespoke staircases, a contemporary roof structure and new finishes to

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Latest News

Vallis & Hall Conservation Architects

New year, new name!

We are starting 2023 with the news that from 1 January, the Practice has changed its name to Vallis & Hall Conservation Architects. After running her own practice for 30 years, Jane Jones-Warner has handed the reins over to Julian Vallis and Laurence Hall, who are both already partners in the business. Jane has become

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St Mary's Church, Thakeham new annexe

Highly commended at the Sussex Heritage Trust Awards 2022

Our run of success at the Sussex Heritage Trust Awards has continued this year with our project for the new annexe building at St Mary’s Church, Thakeham receiving Highly Commended.

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North Park Furnace Fernhurst conservation projects completed

Conservation projects completed at North Park Furnace

We are delighted to share photos of the two conservation projects we have recently completed at North Park Furnace in Fernhurst.

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