United Kingdom Accreditation Service, certifying your timber frame project is manufactured and erected to reliable and quality ISO 9001:2000 procedures SGS - Society General de Surveillance ensures that quality systems and procedures are used in the design, manufacture and erection of your engineered timberframe structure is of the highest standard FSC - Forest Stewardship Council - FSC Timber Frame certification. Benfield ATT hold Chain of Custody certification for the Design, Sales, Manufacture & Distribution of Engineered Timber Structures – FSC endorsed by Greenpeace, Friends of the Earth and WWF and EcoHomes Investors in People, Benfield ATT are one of a few timber frame companies to hold an award for the training and ongoing development of their people and service   Examples of timber frame homes

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Benfield ATT 'Roof Room' Loft Conversions

Most people have a romantic view of their attics, from the cobwebbed rafters to the boxes upon boxes of long-forgotten memories. But for the majority of homes, the loft is just a wasted space, with the average household visiting their loft between one and two times per year...


Benfield ATT are experts at designing, engineering, producing and fitting Roof Room loft conversions, even when trussed rafters are involved. We can do this because we have full on-site Technical and Engineering teams who can work with you to design a roof structure with few or no internal diagonal members.



To get your FREE Estimate send your drawings to The Benfield ATT Group, Castle Way, Caldicot, Monmouthshire, NP26 5PR or info@benfieldatt.co.uk



attic loft conversion off-site manufacture


Cost Effective, and National
Loft conversions are not a simple process but can be extremely cost-effective and, with the right builder, can be a very rewarding process. With building space at such a premium, Benfield ATT Roof Rooms are an increasingly popular choice, offering significantly reduced building costs per square metre. With a little help from Benfield ATT, you can transform your dusty, unused loft into a wonderful and spacious living area, study, a space for older children to relax away from their parents or a spare room, perhaps with an extra bathroom, Velux-style windows and a staircase.


A Benfield ATT Roof Room conversion will transform loft space into one or more useful rooms and is likely to increase the value of your home by about 24% and provide between 30-60% extra floor space. Benfield ATT have a national coverage through our network of quality Chartered Builders throughout the UK.


Planning Permission
Planning Permission is not typically required for Roof Room conversions but we recommend you contact your local planning office in the first instance. However, in the interests of good design and privacy, dormer (extruding) windows should normally be confined to the rear, be set in a minimum of 1 metre from the main wall of the dwelling and should not exceed the height of the existing roof.


'Trussed' the Experts!
A Roof Room requires skilled and experienced Trussed Rafter engineers. For more technical information, please ask for our free TRADA information leaflet on Roof Room construction, or speak to our dedicated Roof Design & Manufacture Department on 01291 437050.


Chartered Building Consultancy - timber frame, OSM (off-site manufacture) and engineered timber structure advisors. Timber Research and Development Association – our work with TRADA ensures high quality, eco-friendly engineered Timber Frame build projects. The Green Register of Construction Professionals - Benfield ATT's membership demonstrates our passion for environmentally sustainable timber frame self-builds, new homes, schools and social housing for local housing authorities AECB - Association of Environment Conscious Building – our FSC certified timber frame is endorsed by The Ecology Building Society Impact Upon Society Big Tick Award from Business in the Community – BITC – award-winning timber frame company within the Timber-frame industry TRA - Trussed Rafter Association – our membership assures Timberframe Trusses, Trussed Rafters, roofs and complex and innovative roofscapes are quality HBF - the only developer partnering timber frame company to be members of the House Builders Federation. Wales Quality Centre – members and committee members, we ensure the highest quality, especially when coupled with ISO 9001, FSC certification and Q-Mark Plus standards RICS - Royal Institute of Chartered Surveyors, assures our customers of our professionalism in wood and timber frame building and developing and surveying
Benfield ATT FSC-Certified Engineered Timber Structures do not cost the Earth.
Chain of Custody TT-COC-1928. FSC Trademark (C) 1996 Forestry Stewardship Council