We are a progressive and contemporary community of architects that focuses on sustainable and practical designs through a creative dialogue with our clients, consultants, contractors and communities. We will translate aspirations into appropriate, innovative and joyful buildings through integrated, context-specific design.

Our experienced team will create an individual solution for each project, large or small. Continuous attention to detail ensures the highest quality at each work stage. We welcome new challenges and apply knowledge gained from completed projects to new situations. Our hard-working buildings ensure maximum quality and value. We will listen to you, and we will act on what we hear.

Who We Are

Sarah Curl, Director

Sarah is the Director in charge of our educational projects. She has a very hands-on approach to education work in the practice from concept to completion.

Her school projects range from small nurseries to large secondary schools and academies, including for special needs. Award-winning projects include Fitzjohn’s Primary School, Camden, St Wilfrid’s Secondary School, Crawley, and St Michael’s Catholic High School, Watford.

She is an RIBA Client Adviser, and has advised on projects in Barking & Dagenham, Bournemouth & Poole, Cambridgeshire, Haringey and Tower Hamlets, often managing complex consultation processes.

Sarah has been an RIBA Part 3 professional practice examiner for over 10 years and is the practice’s champion for our graduate trainee programme.

Wayne Head, Director

Wayne is the Director in charge of our cultural, healthcare and higher educational projects. He is also a CABE Building Environment Enabler and serves on design review panels.

Two years ago he joined Sarah Curl and Dean La Tourelle in practice. He and Sarah have worked on a number of important public projects, notably Cambridgeshire’s Building Schools for the Future programme.

His 20 years’ experience spans from healthcare, schools, further education and universities, to infrastructure and master planning. He has led six projects which have achieved RIBA awards, and last year his Creative Arts Hub in Norwich won a Civic Trust National Award and was shortlisted for the AJ Excellence Award.

Wayne also maintains a particular interest in promoting sustainable and eco-friendly design.

Oliver Bulleid, Director

Oliver has over 25 years experience in construction working on a wide range of project types and at all scales with a particular expertise in housing. He has worked on multi award winning projects and has taught architectural construction at a number of UK universities. He is passionate about low energy design and has built his own prototype house as a testbed. Oliver heads our residential sector.

In his previous experience Oliver has led several mixed use and urban regeneration projects including: Somerleyton Road, Lambeth - providing a 10 storey extra care housing block; Brentford Lock, Hounslow - 157 home brownfield regeneration as part of a wider canalside masterplan; over 100 new homes for Brick by Brick Development in Croydon and similar developments in Ealing.

Awards: RIBA Regional Award / NLA Award/ Housing Design Award/ Grand Designs Award/ Hackney Design Award

Dean la Tourelle, Senior Consultant

Dean leads our residential and community architecture, and chairs Directors’ meetings. He has very wide experience in urban renewal and mixed use development, affordable and market housing, offices and education.

Experience in co-operative housing and innovative community action in London’s East End has given him a continuing interest in community architecture. He has also had many years’ experience as a design teacher and researcher in architectural schools, both in the UK and the USA.

His recent community projects include Unity Hub@Craig Park, winner of the 2014 AJ Retrofit Community Buildings Award and shortlisted for an RIBA Award, and the Acacia Intergenerational Centre, finalist in the 2011 British Construction Industry Awards.

Andrew Lloyd, Senior Associate

Andrew manages our large multiple school projects on council frameworks, and oversees technical standards across the office.

His organisational and management abilities are shown in the Brent Primary Expansion programme. This includes seven primary expansions, a new primary and a special school expansion, built in phases using off-site construction and standardised components developed for assembly in various ways to ensure the individuality of each school.

He has led diverse community building projects including The Circle Library, Sutton and Sutton Life Centre, Acacia Intergenerational Centre, Merton, and the award-winning youth centre Unity Hub@Craig Park, Enfield. He currently leads on Whitehall Museum and Russettings Registry Office extension and refurbishment projects in Sutton.

Andrew is also a RIBA Part 3 professional practice examiner.

Frehiwot Gebremichael, Associate

Frehiwot manages our human resources and administrative systems, as well as working on marketing and bids. She is responsible for maintaining our ISO 9001, ISO 14001, health and safety and other business accreditations. She also manages Rapport3, our project and resources management software.

Her architectural training, experience with other practices, efficiency and tact ensure that her colleagues are able to focus on design and delivery of their projects in line with our quality management system, while being confident that our office systems provide the support they need.

Lesley Turner, Senior Architect

Lesley in a key senior architect who concentrates on technical architecture, making buildings buildable, while working to maintain the highest level of design quality within budgets and programmes.

Before joining CLTA in 2009, Lesley developed technical and construction information for schools, hospitals, affordable housing, retail and leisure projects during 25 years.

Lesley previously worked on competition winning Sheltered housing scheme Barnet Lane Elstree and was the competition winner for the Hong Kong Academy for Performing Arts, an urban landmark with refined interior spaces for entertainment, on a site constrained by a matrix of underground utility and transport tunnels and for a private house for a well known music mogul.

She likes to run production teams so efficiently that they have enough time to enjoy life.

Lesley participates in Barnet Fora and local residents association issues in Cricklewood where she has lived for 30 years.

She supports her husbands musical performances whilst preferring to play her saxophones in private.

Ruth James, Senior Healthcare Architect

Ruth James is a Senior Healthcare consultant Architect with a demonstrated history of working with clients, user group, establishing a brief, design documentation to the production of fully co-ordinated project information including schedules and specification, programming, and leading complex healthcare, science and technology and interior refurbishment project to completion.

Ruths recent project experience includes:
A&E Reconfiguration at UCLH: Enlarging the existing majors department and a new RAT suite (Rapid Assessment/Treatment)
Anida Development of Postnatal Facility at UCLH: Stage 1 and 2 design for transforming the Fitzrovia Suites into a private post-natal facility including a family area and mothers feeding room.
Private Patients Diagnostic & Chemotherapy Treatment Centre for the Royal Marsden Hospital: Complete Design stages through to Tender for the fit out of a Grade II listed building.

Clara García González, Associate

Clara joined CLTA to be part of the school projects team. ARB registered, Clara studied architecture and worked in Madrid, Spain, Sweden, Mexico and India, designing buildings at the same time as leading urban research programmes.

Clara has experience of dealing with different scale and typology of projects, from community to housing, from office spaces to public realm. Amongst the extensive knowledge Clara brings to CLTA there is a deep understanding of concrete construction systems too.

In the past she took part in projects such as the Madrid Logytel Headquarters, applying numerous sustainable innovations to the design, and the award winning Contemporary Art Centre Coleccin ARCO at the Matadero Madrid.

Clara was selected to represent the Lund University for the Schindler Awards 2008 competition.

Clara has a passion for travelling, trying always to learn about the local architecture. Her interest to explore new places and working cultures is an important part of her job and life.

Alex Jones, Senior Architectural Technologist

Alex graduated from the University of the West of England with a First-Class Honours degree in Architectural Technology and Design and is a Chartered Member of the MCIAT Institute.

Alex has recently joined CLTH and is a leading member of the BIM and Technical team. Having previously worked in a variety of sectors, Alex has particular experience in Healthcare developments and has played a prominent role in taking a range of schemes from design to site and through to completion

Theclalin Cheung, Architect
Jason Edwards, Architectural Assistant
Bethany Penman, Architectural Assistant
Adam Telfer, RIBA Part 2 Architectural Assistant

BArch (Hons) DipARCH

Alastair Porter, Architectural Assistant
Lorraine Simmonds, Finance
Marianne Christiansen, Architectural Designer & Urbanist

Marianne was taught at the Aarhus School of architecture in Denmark. She has worked with urbanist practices in London including EAST, MUF and Publica. She has also taught architecture at the University of East London for ten years.

Brahim Kanoute, Architectural Designer
Rashad Al-Karooni, Architect
Gabriella Watkins, Architectural Assistant



Revitalise Peckham Rye
• 'Public Building of the Year', AJ Architecture Awards 2018 (Finalist)
• 'Best Public-Use Project with Public Funding', Blueprint Awards 2018, (Highly Commended)
• ‘Architect of the Year’, Structural Timber Awards 2018 (Shortlisted)
• ‘Civic Building of the Year’, Spaces Awards 2018 (Highly Commended)

Whitehall Museum
• AJ Retrofit Awards 2018 (Shortlisted)

Unity Hub at Craig Park
• AJ Retrofit Awards, Civic and Community 2014 (Winner)

Black Country Museum
• RIBA International Competition (Shortlisted)

Shinfield Community Centre
• RIBA Competition (Shortlisted)


  • Details Series Volumes 1–4, The Everyday Press
  • Thames Tidal School Project, Dezeen
  • Details at the Sir John Soane's Museum, Architecture Today
  • Unity Hub at Craig Park, Products in Practice

Talks & Exhibitions

  • Director Wayne Head has held talks on Details in architecture at the following practices:
  • The Sir John Soane's Musuem as part of a series celebrating his publication Details. Guest lecturers included Professor Charles Holland and Armstrong Yakubu
  • Glasgow, Mackintosh School of Architecture
  • Duggan Morris Architects
  • De Rosee Sa Architects
  • AHMM Architects
  • Wayne has also led tour groups on City of London Architectural Tour with Professor Marian Muller of Casper Mueller Kneer Architects with Students from Munster School of Architecture, Germany.
  • Upcoming talks to be held at _ Fosters + Partners


Local Authority Clients

  • City of London Corporation

  • London Borough of Barking and Dagenham

  • London Borough of Brent

  • London Borough of Camden

  • London Borough of Croydon

  • London Borough of Enfield

  • London Borough of Hackney

  • London Borough of Haringey

  • London Borough of Merton

  • London Borough of Redbridge

  • London Borough of Southwark

  • London Borough of Sutton

  • Royal Borough of Greenwich

  • Derbyshire County Council

  • Folkestone & Hythe District Council

  • Contractor Clients

  • Graham Construction

  • Bouygues UK

  • Morgan Sindall plc

  • Willmott Dixon Construction Ltd

  • Neilcott Construction

  • Schools and Education Bodies

  • London Diocesan Board for School

  • Thames Partnership for Learning

  • The Girl's Day School Trust

  • Private Clients

  • Scott Developments

  • Delfont Mackintosh Theatres Ltd

  • Trinity College Dublin

  • WestGreen Studio

  • John Lyon Independent School Harrow

  • Girls' Day School Trust

  • Al Noor Foundation

  • London Fields Solutions

  • Landrise

  • Dr Daniel Turton

  • Mr Todd Taylor

  • NHS Trusts

  • University Hospitals Plymouth NHS Trust

  • Homerton University Hospital NHS Foundation Trust