HOUSE EXTENSION DESIGN LIMITED - Architectural Designer
HOUSE EXTENSION DESIGN LIMITED is a verified architectural designer, established for 19 years, serving East Midlands, Yorkshire and The Humber.
About HOUSE EXTENSION DESIGN LIMITED
House Extension Design Ltd is a Sheffield-based architectural design practice specialising in domestic house extensions. Led by Francis Collumbine, the company has over 45 years of experience and has completed more than 5,000 local authority approved designs since 1981, offering a complete service from initial concepts through to obtaining planning approvals with a 98% success rate.
The company focuses exclusively on private householders seeking residential extensions in the Sheffield area. They handle small to medium-scale domestic projects, providing a comprehensive service that includes both design and structural engineering calculations to satisfy local authority requirements, suggesting they work on typical household extension projects rather than larger commercial or multi-unit developments.
Track Record
4+ planning projects · 2 councils served · Established 19 years · Active in 2026
Service Areas
HOUSE EXTENSION DESIGN LIMITED serves East Midlands, Yorkshire and The Humber.
Councils
HOUSE EXTENSION DESIGN LIMITED has worked with North East Derbyshire District Council, Sheffield City Council.
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