top of page

Seth White Architects are an RIBA chartered practice based in St Albans, Hertfordshire that were established in 2020. We are a design-led studio that specialises in residential new builds, extensions & refurbishments and also have experience in education, commercial and mixed use projects. We are passionate about the work we do and provide a personalised service to all our clients.

201204_External perspective Insta timber.jpg

Why choose Seth White Architects?

- We listen carefully to our clients and love to work with them to create their dream homes

- We provide a design-led approach to architecture and interiors that is tailored to meet the needs of each and every client

- We create high quality designs that provide soulful environments to live and work in whilst providing best value for money

- We draw from over 20 years experience of delivering complex projects from inception to completion, across a broad range of sectors and project types

- We are passionate about sustainability and well considered design for a changing world

- Testimonials from past clients demonstrate their positive experiences working with SWA

CreativeCollective-80 square reduced.jpg

Seth White


BA (Hons) Dip Arch ARB RIBA

Jayakar square.jpg



BArch MAArch 



Seth is the director and founder of Seth White Architects with over 20 years working experience. Prior to establishing the studio, Seth studied at Portsmouth School of Architecture where he completed his architectural BA degree and Diploma, which he was nominated for the RIBA silver medal for the latter.

He moved to London in 2004 and worked on some exciting education and laboratory projects before pursuing roles at well renowned practices John McAslan & Partners and Squire and Partners, where he progressed from Project Architect to Associate Director.


Seth has led a range of high profile residential, mixed use and educational projects from inception to completion. His extensive experience means he is able to provide clients with innovative solutions to their briefs within any given budget. Seth's proven track record for delivering award winning buildings provides his clients the assurance that their project is in safe hands.

arb logo black.jpg

Jayakar joined the practice in 2022 and works as an Architectural Assistant. After graduating in India and Germany, Jayakar relocated to the UK with his wife.

He has worked across a wide range of SWA projects and heads up the office BIM development & CPD programmes.

Stefanita joined the team in 2024 and also works as an Architectural Assistant. After completing her Architecture and Urban Planning degree and Masters course in Bucharest, Stefanita worked in various practices across Romania, Poland and London. She is currently working on a new build development in Bedfordshire and she brings a wealth of knowledge within Revit and 3D rendering software's to the team.

Xena square.jpg



BArch MAArch


Sustainability is an inherent part of the work we do, and we recognise the impact that architectural design, construction and operations can have on our environment. Our objective is to create buildings that can be constructed and operated in a sustainable manner, which are able to adapt over time and meet the changing needs of our clients.

We take a holistic approach to sustainability in all our projects and strive to integrate it rather than allowing it to be the primary driver for the building’s design.

A number of our current projects are incorporating modern methods of construction and sustainable technologies that will boost the building’s credentials. We often work with Sustainability Consultants that can develop innovative solutions to meet the needs of each individual project.


Passivhaus is a certified standard for energy-efficient building design and construction that originated in Germany in the early 1990s. It has gained international recognition as one of the most rigorous and successful approaches to achieving energy efficiency in buildings.

The Passivhaus standard aims to create buildings that have exceptional energy performance, superior indoor comfort, and minimal environmental impact. The key principles behind Passivhaus include:

  1. Super Insulation: Passivhaus buildings have a highly insulated building envelope, which minimises heat loss and reduces the need for heating or cooling.

  2. Airtight Construction: The building envelope is carefully sealed to prevent air leakage and drafts. This ensures that the heating or cooling energy remains inside the building.

  3. Energy Recovery Ventilation: Passivhaus buildings utilise a mechanical ventilation system with heat recovery. This system supplies fresh air while recovering the heat from the exhaust air, further reducing energy demand.

  4. Thermal Bridge-Free Design: Thermal bridging, which occurs when heat transfers through materials with higher conductivity, is minimised in Passivhaus construction to maintain consistent temperatures throughout the building envelope.

  5. High-Quality Windows: Passivhaus buildings feature triple-glazed windows with insulated frames to reduce heat loss and improve thermal comfort.

  6. Passive Solar Design: Passive solar techniques are employed to maximise natural heat gain from the sun during winter while minimising overheating in summer, reducing the need for mechanical heating or cooling.


By integrating these design principles, Passivhaus buildings can achieve an extremely low energy demand, typically 80% to 90% lower than conventional buildings. This reduced energy consumption not only leads to significant cost savings but also contributes to a substantial reduction in greenhouse gas emissions and environmental impact.

Certification for Passivhaus standards involves rigorous testing and verification, ensuring that the buildings meet the required performance criteria. The certification process evaluates factors such as energy demand, airtightness, ventilation performance, and thermal comfort.

Passivhaus has gained popularity globally, and its principles are applied to various building types, including residential, commercial, and institutional buildings. It has proven to be an effective approach for achieving sustainable, comfortable, and energy-efficient structures.

bottom of page