TSBP Architecture

Founded in 2004, TSBP Architecture is a multi-sector architectural design practice in Portsmouth, Hampshire.


The practice has established a growing reputation for delivering the highest quality of service to clients and is a CIAT Chartered Practice of the Chartered Institute of Architectural Technologists, listed on the Register of CIAT Chartered Practices. The practice continues to maintain Full Professional Indemnity Insurance appropriate to the scale and type of work that it undertakes whilst complying with the CIAT’s Code of Conduct and Continuing Professional Development obligations.


TSBP Architecture is a team of collaborative, innovative thinkers who enjoy contributing to our dynamic, rewarding studio culture.



We’ve come together from many backgrounds, united by our passion for working critically and passionately with curiosity, integrity and camaraderie.

Our shared goal: to design elegant, effective and environmentally responsive solutions for a broad range of clients.

SB Principal Photo Mono 11-05-19

Steven Barlow FCIAT,
Chartered Architectural Technologist

Team Principal and Founder,

The Principal has over 30 years’ unrivalled experience for his age actively involved in a wide spectrum of building types based on full and partial architectural services from conception to completion for individual private clients, developers through to national and international companies.


Steven received his architectural training in Portsmouth and was elected Full Member of the Chartered Institute of Architectural Technologists (MCIAT) in 1998, becoming one of the youngest to achieve Full Membership at 24. He began in private practice in 2004.


In 2021, Steven received recognition for his work and was made a Fellow of the Chartered Institute of Architectural Technologists (FCIAT), the global membership qualifying body of for Architectural Technology. Becoming a Fellow Member is an acknowledgement of a Chartered Member’s significant contribution to and/or excellence in Architectural Technology from the Institute and peers, and forms part of the continued profile-raising of Architectural Technology as a discipline and profession.

GB Finance Photo Mono 11-05-19

Gemma Barlow


Utilising her experience in finance, governance and management, Gemma is pivotal to ensuring any financial activity follows a robust governance approach to meet aggressive targets and deadlines.


Gemma is an expert in financial analysis, forecasting, excel modelling, identifying new opportunities and implementing internal controls to ensure adherence to compliance whilst minimising business risk.

SR IT and Marketing Photo Mono 26-04-20

Stephen Roebuck

IT & Marketing


Evening Standard

New Homes Awards 2020

Hunters Hill and Stockhouse Farm

Winner of Best Boutique Development

Winner of Eco Living Award



LABC Building Excellence Awards 2018

Skyridge House

Regional Finalist

Finalist Best Individual New Home

For building excellence in the delivery of outstanding construction and workmanship


INCA Awards 2018 – Architecture

Skyridge House

Highly Commended Architectural Design Award




Guildford Design Awards 2017

Skyridge House

Commended for its Environmental Sustainability



Evening Standard

Hunters Hill House and Stockhouse Farm

Featured in the Homes and Property section of the Evening Standard

22 October 2020 edition.


Surrey Advertiser 2018 –

Hunters Hill House

Luxury Eco-Tech House featured in the Surrey Advertiser.

Evening Standard New Homes Awards 2020