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.

Customer care is at the heart of everything we do. We put our customers first. Our flexible approach means we can work on any work stage, be it at inception, exploring challenges and opportunities, masterplanning, through to delivery of large scale projects. We’re building hospitals, schools, housing, we want to build projects that we can tell our grandchildren about.

CLTH is an equal opportunities employer.

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 Director in charge of our education, cultural, healthcare and higher educational projects. He is also a CABE Design Council appointed Built Environment Expert and serves on several regionally based design review panels. Current clients include Alfreton School Derbyshire, Homerton University Hospital, Trinity College Dublin, Hornsey Library Haringey and the Harrow Foundation John Lyon School.

He is an RIBA Client Adviser and has been an RIBA Part 3 professional practice examiner for over 5 years. He is also a regular critic at the Bartlett School of Architecture and Westminster University School of Architecture.

His 20 years’ experience spans healthcare, schools, further education and universities, to infrastructure and master planning. He has led six projects which have achieved RIBA awards, he recently led the Creative Arts Hub in Norwich which won a Civic Trust National Award and AJ Excellence Award. This year he led the team to deliver a new educational facility in the Listed Peckham Rye park, the building won a Blueprint Award and is shortlisted for the Architects Journal Public Building of the Year.

Wayne also maintains a particular interest in promoting sustainable and eco-friendly design and is currently a member of the London Energy transformation Initiative Task Force. LETI is developing a technical guidance roadmap which will set out the approach, targets and benchmarks that developments in the UK need to achieve to reach Net Zero in operation.

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, Chairman & 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.

Frehiwot Gebremichael, Practice Manager 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 is 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 CLTH 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.

Ruth James, Senior Healthcare Consultant

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 CLTH to be part of the school projects team, last year Clara became Associate in the group. Before joining CLTH Clara studied architecture and worked in Madrid, Spain, Sweden, Mexico.

Currently Clara plays a leading role in CLTHs education group and has recently delivered a major new build SEN school for Essex Council. She is now managing a further SEN school with housing provision and developing detailed design proposals for a new zero carbon school in the Derbyshire Hills. She has excellent on site experience of dealing with various typology of buildings from community housing, office spaces to public realm.

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 Coleccion ARCO at the Matadero Madrid.

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

Peter Liddell, Senior Architect

Peter, formerly an Associate and Sector lead for Healthcare at Penoyre & Prasad, recently completed the New QE2 Hospital in Welwyn Garden City and Grade II listed Oddfellows Hall’s extension and refurbishment as part of Manchester University MECD project, with Mecanoo.

Peter has also worked on refurbishment of the original QE2 cruise ship interiors, Wolverhampton Civic Hall refurbishment and Southwark Underground Station as part of the jubilee line extension.

Peter joins us to work on our Brent mixed-use scheme, Isleden House, and Wolverhampton Public Sector Hub, the City’s largest mixed-use project to date.

Jason Edwards, Part II Architectural Assistant

Jason has graduated from Oxford Brookes University having studied Part Two Architecture Diploma through an office based course whilst working at CLTH.

Jason is currently working with the CLTH residential team delivering housing for the London Borough of Sutton. He has also worked extensively on varied CLTH educational buildings across London and the south east.

Jason has the role of IT manager within the office, implementing and administering the office IT strategy.

He has extensive knowledge of all RIBA project stages from inception through to completion. In the past he has project lead numerous residential schemes that comprise a broad spectrum of housing such as social, community and high-end residential projects. Jason also has experience within other architectural sectors that includes community, hospitality, and mixed use projects.

Adam Telfer, Part II Architectural Assistant

Adam studied at the Mackintosh School of Architecture and received the Mackintosh School of Architecture Portfolio Award. He has previously worked for award winning practices in London with a focus on private residential projects. Since joining Curl la Tourelle Head, Adam has been able to further pursue his passion for quality residential work and sustainability.

Alastair Porter, Part I Architectural Assistant

Alastair joined CLTH 2018, having graduated from the Sheffield School of Architecture. He is currently working on the exciting refurbishment of the Grade II Listed Hornsey Library in Haringey London as well as Alfreton School, a new zero carbon facility for students with special educational needs set in the beautiful Derbyshire Hills.

Lorraine Simmonds, Finance
Marianne Christiansen, Architectural Designer & Urbanist Consultant

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 Kanouté, Architectural Designer

Brahim (BA, DipArch, DE) received his masters from Ecole Nationale Supérieure d'Architecture de Paris-Belleville (ENSAPB) in 2013. He is dedicated to working with the CLTH residential group and has worked with Wayne and Oliver on recent major social housing projects for London Boroughs Sutton and Brent. His previous experience included several residential schemes of varying scales within London including Islington, Barnet and Croydon.

Rashad Al-Karooni, Architect

Rashad (BA, MArch, ARB) studied Architecture at the University of Liverpool and the University of Westminster. He is Project Architect on a number of schemes within the office, including working closely with the London Borough of Greenwich on a new 2FE Primary School – Kellaway Road, Relocation of Kidbrooke Park. Rashad also has Contract Administration experience and has worked in a variety of sectors including residential, hospitality and education.

Gabriella Watkins, Part I Architectural Assistant

Gabriella is a Bartlett School of Architecture undergraduate with exceptional design and drawing talent! She is currently working with director Wayne on a the John Lyon Independent School Harrow-on-the-Hill and Alfreton School a new zero carbon facility for students with special educational needs set in the beautiful Derbyshire Hills.

William Henley, Architect

Will studied architecture at the University of Liverpool and the Royal College of Art. He joined CLTH in 2019 and is Project Architect for a major mixed-use scheme for the London Borough of Brent. Will has experience of public realm, museum design and housing at all scales in his previous roles at Metropolitan Workshop and Rick Mather Architects.

Archie Darroch, Part II Architectural Assistant

Archie graduated in 2018 with a diploma from The Mackintosh School of Architecture in Glasgow. He joined CLTH in January 2019 as a Part II Architectural Assistant. He is currently working with director Oliver and the residential team delivering social housing for the London Borough of Sutton. His previous experience includes working on a large residential scheme in Croydon and working on the renovation and conservation of period and Listed buildings in the Lake District.

Giorgia Pierleoni, Part II Architectural Assistant
Simon Bumstead, Architect
Richard Taylor, Architect

Richard is interested in community projects and is currently working with a childhood obesity charity project to design and build a mobile food bike to be used in schools.

Richard studied at Newcastle, Westminster and Sheffield University, on a unique course combining RIBA Part I and MEng Structural Engineering, with his thesis being nominated for RIBA North East Hadrian’s medal.

Having worked previously at Ben Adams Architects on a variety of projects in the Office, Residential, Leisure and Healthcare Sectors, Richard joins us to work on Wolverhampton Public Sector Hub, the largest mixed-use project the city has to date.



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

Whitehall Museum
• AJ Retrofit Awards Shortlisted 2018
• Civic Trust Award Shortlisted 2018

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

Black Country Museum
• RIBA Competition Shortlisted 2018

Shinfield Community Centre
• RIBA Competition Shortlisted 2018


  • 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
  • D:SE Kent Masterclass speaker in Februrary. Guest lecturers include Michal Cohen of Walters & Cohen and Simon Henley of Henley Halebrown.
  • D:SE Design School tutor in March
  • J&A Cafe exhibition Clerkenwell


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