The Association of Consultant Architects


The Association of Consultant Architects (ACA) is the national professional body representing architects in private practice – consultant architects – in the UK.

The ACA provides an independent voice and support to architectural practices that promotes high standards in practice. Membership is free and open to registered architects practicing on their own either alone or in partnership or as a Director of a company whose business consists wholly or mainly of an architectural practice or an allied field.

The principal purpose of the ACA is to represent and support architects in providing excellence in practice. The Association lobbies and consults with Government and major industry bodies, arranges events and provides other services in support of this goal.

The ACA promotes the service a consultant architect offers and works to sustain the profession’s reputation and ensure its appropriate place within the building industry, as well as maintaining awareness of its value to clients, domestic and commercial, and the broader community as a whole.

While other benefits are available to members, this collective voice is regarded as the most important function of the ACA and is central to the ethos of the Association.

Core Benefits
1. The exclusive quarterly ACA Newsletter (which has a subscription value of £99 per year)
2. Access to free webinars and content from our partners who offer exclusive discounted offers to Members for their services
3. Free webinars and discounted tickets to ACA and industry events which cover topics such as Building Safety, Planning and developments within the DLUHC
4. Representation on the Construction Industry Council and other industry bodies
5. Additionally, the ACA creates and publishes its own contracts such as the ACA Standard Form of Agreement (SFA 12) and the Appointment of a Consultant Architect; soon to be republished as PSA 22 in the summer of 2022
6. Close collaboration with Professor David Mosey, Centre of Construction Law at King’s College London on the publication and promotion of the frame work alliance contract FAC-1 and the project partnering contract PPC 2000
7. The ACA also benefits from his shared knowledge on ‘Constructing the Gold Standard’ and ‘Collaborative Guidance for Design and Construction to Support Building Safety’.

- Special rates for employment law advice with Short Richardson & Forth Solicitors Ltd, a law firm based in Newcastle upon Tyne and Manchester but operating nationally.  Special rates have been negotiated across tribunals, contract reviews and in-house training sessions.  
- Marsh Commercial is the ACA’s preferred insurance broker and offer our members risk management advice to help navigate the day-to-day risks architects face.  
- Through our collaboration with Management for Design, ACA members have access to their advisory service relating to: Business Planning, Business Management, Performance Management /Business Systems.
- As one of the UK’s leading Research and Development tax experts for Architecture Green Jellyfish have come onboard as the preferred specialists for your R&D tax claims. They are offering a completely free of charge no obligation consultation, along with specially negotiated rates on a no win no fee basis for all ACA members.

Our Members
We are very proud that our Members can offer their Clients a wide range of specialisms in the architectural field; with a large number focussing on Conservation and Heritage.  

Amongst them are Ablett Architects who offer an individual service specialising in repair and alteration work to existing and historic buildings, many of which are listed, dating from the twelfth to the twentieth centuries. They enjoy adding discrete twenty- in first layers as well as more major extensions and adaptions, whether in traditional or contemporary style and are passionate about historic buildings. They seek to understand the phases of change and evolution, the intricacies of the building, the decay mechanisms, the repair and conservation challenges as well as working closely with client representatives to develop the longer-term vision. They’ve worked on beautiful projects from Portsmouth Cathedral through to the Lambeth Palace Library.

Also, based in Wales, is Catalina Architecture who are a private architectural practice offering professional services generally in accordance with the RIBA Plan of Work.
Their projects include contemporary design and historic building conservation, ranging in value from £100K to £5M. Their projects include the Grade I listed Plas Nanteos Mansion and associated stables which saw a comprehensive conversation and upgrade as well as the Grade II listed building named The Iron Room which required full repair, renewal and upgrade.

Then we have Keith Williams Architects founded in 2001 by Keith Williams and Richard Brown , Keith Williams Architects is by reputation one of the UK’s leading architectural design practices with a body of work which incorporates a series of exceptional high profile, sustainable, award winning projects for clients in both the private and public sectors. Based in London, the multi-award winning firm works in the UK and internationally across a broad range of projects including cultural, residential, commercial buildings as well as urban design, place making and city masterplanning. Keith Williams Architects is particularly noted as a leading specialist architect for museum, art gallery, library, civic, theatre, opera, music and performing arts buildings.

The ACA is delighted to have Jonathan Louth as member of our Council, with a highly qualified background in conservation and heritage; he is an architect accredited in Building Conservation, a member of the Cathedral Architects Association (CAA), and a member of the European Association of Cathedral Architects, which is one way in which he maintains his Conservation competence, including papers delivered in Hamburg, Erfurt, Basel then this year in Valetta and Pisa. In 2000, Jonathan was invited to join the Fabric Advisory Committee  of St George’s RC Cathedral Southwark. Then in 2003, saw his appointment to the post of Cathedral Architect which then led him into his third term being charged with designing, specifying and administering the replacement of the Energy Infrastructure to the Cathedral estate. This required repairing and conserving all high level masonry to the church, including the re-leading of the Harry Clarke West Window with Chapel studio, introducing a new Portal (Holy Door) into the West Front at the North Aisle, designing moveable Choir Stalls and developing a new stairwell and lift for secure access and escape in Cathedral House (Grade II). Jonathan is now in his fourth 5-year term!

Membership of the ACA is free so please visit to become a Member; it will only take a couple of minutes! We look forward to welcoming you!

Design for conference centre beside St George’s RC Metropolitan Cathedral Southwark - image credit "John Jones Vis3d"


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