Eartha Members Services

Across East Anglia there are believed to be in excess of a thousand earth buildings mostly of 19th century origin. To ensure their survival these buildings need appropriate maintenance using materials and techniques sympathetic to this unique construction method.  New buildings can also be constructed from earth using a range of building techniques that offer an unrivalled level of environmental sustainability.

EARTHA seeks to bring together professionals and individuals with experience of earth construction and design to create a pool of knowledge and construction services unique in East Anglia.

Each individual or practice takes responsibility for the services offered. But the pool of knowledge represented by EARTHA and the willingness to share knowledge through networking, seminars and meetings means that each individual gains knowledge by association with other EARTHA members.

EARTHA members offer a wide range of professional services, these include:

architecture, structural engineering, surveying, earth block manufacture, courses in earth building, energy assessments and a range of building services

Services Provided

  • Sarah Roberts MA, RIBA

    • Roberts Molloy Associates | Architects and Consultants   
      3 Church Lane
      , Bressingham, Diss, Norfolk. IP22 2AE
      Tel: 01379 687705  | |          
    • Lead consultant and contact: Sarah Roberts MA, RIBA, Chair of EARTHA; RIBA Conservation Register,

      We seek to simplify the use of earth-based construction through the Planning, Building Regulations and Warranty systems. 



     Colin Williams MPhil, FCABE MRICS

    WCK Design and Conservation Ltd., 27 Richmond Place, Lyng, Norwich Norfolk.  NR9 5RF  Tel: 01603 879593  email:

    Colin’s interest in earth buildings stretches back some 20 years.  In 2007 he completed a six year research degree at Plymouth University into contemporary earth building.  His interests are in new build as well as the restoration and conservation of existing earth buildings.  Research papers published include: Earth Block Walling in the UK, The Cost of Sustainable Construction, The Flexural Strength of Earth-Block Masonry for Sustainable Walling, The Feasibility of Earth-Block Masonry for Building Sustainable Walling in the U K. Colin’s interests are in sustainable design, energy conservation including ways of insulating new and existing earth buildings.  He is a Chartered Building Engineer and Chartered Surveyor.

    Services offered include: architectural and structural design, energy assessments (EPC & SAP) and assessments under the Code for Sustainable Homes.


    Malcolm Carrington MSC

    Malcolm Carrington MSC, offers natural building materials including earth blocks, daub, line and linseed oil paint. 

    Contact: Tel: 01487 840305 or go to website


     Kate Edwards and Charlotte Eve

    Edwards and Eve Cob Building | | 01493 369952    07949 241815               

    We specialise in teaching anyone, from architects, to housewives to build new houses made from cob and straw bale. We advocate utilizing passive solar design principles, to make the most of the thermal mass of cob and the excellent insulation values of straw bales.  We use our cob- bale hybrid home as a teaching tool.

    Click here for more information


    Maltby Plastering Contractors

    Father and Son, Bruce and Luke Maltby specialise in the care and repair of Traditional buildings.

    We have been working on period property for a number of years, we are accredited by the Norfolk County Council , and Bruce holds a professional Development certificate from the Institute of  Heritage Building Conservation. We are also fully insured

    From cottages to churches, our sympathetic approach will re-discover and enhance the historic beauty and character of your property.Every property and client is unique, and we are always happy to discuss your particular needs with you. Bruce and Luke are well trained in the care and repair of Clay Lump, Cob, and Wattle and Daub properties.

    Our Services Traditional Lime Plastering | Haired Lime/Chalk plastering | Lime Rendering | Lathe and Plaster work | Renewal of wooden Lathes | Re pointing of brick and flint walls Material matching | Clay Lump repair | Wattle and Daub application and repair | Clay Plastering.

    Located in Hingham, we cover the Norfolk and Suffolk area. To discuss your individual requirements and obtain a no obligation quote please contact:

    Bruce   07500004997     |       Luke 07516771206  Office  01953 853061      |       E-mail   |



    'Rural Land Skills Centre', Starston

    Stephen Letch- Master Thatcher from Laurel Farm, Starston, Norfolk is initially providing/hosting short taster training courses in 2014, with the view of providing more advanced courses once the thatched earth block roundhouse is completed for student accommodation and conferencing in 2015.
    Courses will include earth construction, different forms of thatching, flint knapping, growing thatching straw and a whole load more!
    Tel 01379 852335
    Mobile 07796796200


    Vernacular Architecture Group  

    The Vernacular Architecture Group was formed in 1952 to further the study of traditional buildings, originally those of the British Isles. In recent years, its membership and publications have also reflected a growing interest in buildings from other parts of the world. Members are involved in all aspects of the recording and study of vernacular buildings including:

    Detailed local or regional surveys • Studies of particular types of buildings including houses, farms, industrial and urban buildings • Building materials • Techniques of building, including carpentry and masonry • Documentary evidence

    For More Information about Vernacular Architecture Group visit