About

N4 Architecture


N4 Architecture Ltd is a London-based RIBA Chartered Architectural Practice founded in 2021 by Claudia Rosa-Cervello. Specializing in projects across Central London, we bring extensive experience working with listed buildings while embracing contemporary design.

Our ethos is rooted in a deep understanding of the time and place we live in. We see pre-existing conditions not as limitations but as opportunities, valuing what exists rather than viewing it as waste. For us, sustainability begins with how we live, the spaces we inhabit, and how we design them.

Every project is approached individually, offering a fully bespoke service tailored to each client. We collaborate closely to craft thoughtful, detailed designs that create homes with timeless quality—spaces that adapt and endure to meet our clients’ evolving needs.







Our comprehensive services include:

. Feasibility Plans

. Planning Applications & Permitted Development across London Councils

. License for Alterations Support

. Technical Design

. Construction

. Project Management

. Principal Designer (CDM & BR)





Claudia Rosa-Cervello

Founder, MArchitecture (ESP), ARB 


Claudia is an ARB registered Architect. She graduated from Polytechnic University of Catalonia in 2014 and attended lectures for RIBA Part 3 at Westminster University. 

Prior to setting up N4 Architecture, Claudia worked on a large variety of residential schemes; ranging from masterplans, private residential developments and furniture design.  For the last years she has specialized in private residential and successfully completed different planning, design and construction stages for various projects across London. 

Claudia has also participated in ephemeral architectural competitions where she was able to experiment with alternative spaces and materials. She was awarded a special mention at Premis d'Arquitectura - Comarques de Girona 2019 .  




Get in touch

For any project enquiries please get in touch at claudia@n4architecture.co.uk. We will be happy to assist you with initial enquiries or any questions you may have.