Eight practices — two RIBA-chartered (Tyrrell Dowinton, Arch+), two MCIAT-chartered (Matt's, Jason Hobbs), and Torode as the sole RICS-regulated surveying practice. Spread across six parishes; four limited companies. Jason Hobbs, established 1996, is the oldest; Altered Homes (2021) the newest. Tyrrell Dowinton runs a seventeen-strong team. —
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St Sampson·Professional Service·Est. 2003
✦Largest team: 17
Tyrrell Dowinton Architects (TDA) is a RIBA Chartered Practice in St Sampson offering architectural design across residential, commercial, heritage, and leisure sectors.
St Martin·Professional Service
Chartered Architectural Technologist practice in St Martin, offering residential and commercial design and construction services.
Vale·Professional Service
RIBA Chartered Architect and RIBA Chartered Practice with 17+ years of experience, specialising in 3D visualisation, accessible design, and planning consultancy.
St Sampson·Professional Service·Est. 2021
✦Most experience: 30+ years
Architectural design practice specialising in residential extensions and renovations, founded in 2021 by Aiden Potter who has over 30 years of experience.
St Sampson·Organization·Est. 1980
✦Oldest in this niche
Multi-disciplinary architectural practice established in 1980, undertaking alterations, extensions, new builds, refurbishments, and re-developments.
Vale·Professional Service·Est. 1996
Chartered Architectural Technologist practice in the Vale, offering domestic and commercial architectural design, planning, and building control services since 1996.
Castel·Professional Service
RICS-regulated sole practice offering residential surveys and property valuations across Guernsey.
St Peter Port·Organization·Est. 2013
Architectural firm with 11 staff, designing buildings and interiors for private homeowners.
St Peter Port·Professional Service
Architectural design firm in St Peter Port, specialising in home extensions, conversions, and new builds.
Forest·Professional Service
Geoffrey E. Le Friec is a sole-practitioner architectural and building technologist offering residential design and planning services.