Director, Master’s in Architecture & Town Planning ARB RIBA Sketch Design Founder


Kasia Constable

Director, Master’s in Architecture & Town Planning ARB RIBA


Co-founder of Sketch Design, Kasia leads a team of experienced architects and shares responsibility for the design strategy and management of the practice. She is fully involved in the delivery of all projects overseeing quality and production output. Kasia’s varied international experience strengthens her broad outlook and inspires her open-minded approach to problem solving.


After graduating from Poznan University of Technology, Poland, while employed at practices in London and Warsaw, she worked with a wide range of clients including universities, further education colleges and private developers. Passionate about design, she co-created a TV mini-series promoting good residential architecture in Poland.

Guillermo Lavernia

Associate, Architect ARB

Guillermo is an architect with a significant international experience working on residential, retail and commercial projects. He brings great design flair combined with project management and delivery capabilities and is currently running several key projects within the practice.


Educated at the Technical University of Valencia, Guillermo spent a year at Êcole d’Architecture Paris-La Villette Paris as part of the Erasmus exchange programme. He has worked in London since 2013, and previously in Netherlands and Spain.

Associate Architect ARB Sketch Design Interior Design
Associate Director, BA (Hons) 3D & Spatial Design

Heather Miles

Associate Director, BA (Hons) 3D & Spatial Design


Co-founder of Sketch Design, Heather is responsible for the creative direction of the interior design team. Heather's keen design eye and meticulous attention to detail ensure excellence. She has successfully delivered projects for a range of private clients, developers and charities.


Educated at Brighton University of Architecture, Heather has a career history of creating unique interiors & award-winning buildings in the residential, retail, office and leisure sectors. Prior to establishing Sketch, she led Dyer Interiors, and earlier spent 11 years at MPS Architects as senior designer.