http://www.english-heritage.org.uk/ English Heritage protects England's historic environment and ensure that the past is underdood and preserved.
http://www.nationaltrust.org.uk/ The National Trust protects the nations heritage in order that it can be enjoyed both now and in the years to come.
http://www.spab.org.uk/ Organisation commited to saving ancient buildings, providing home owners with practical knowledge.
http://www.jonathan-rhind.co.uk/ Jonathan Rhind Architects are based in Devon and Somerset and focus on conservation projects for listed and historic buildings throughout the South West.
http://www.swarch.net/ South West Archaeology is a well established practice based in South Molton, Devon. Services include specialist reports on individual houses.
http://www.richardgreenecology.co.uk Provides ecological consultancy services in surveys, assessments, management and design
http://www.greenbuildingpress.co.uk/ Information and publications to help you create healthy and ecological homes and buildings