Change of Use
Convert non-residential spaces into habitable property.
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Benefits of a Change of Use.
Change of use projects transform buildings from one purpose to another - typically converting commercial, industrial, or agricultural buildings into residential homes. Whether you have purchased a former shop, office, chapel, or warehouse, we navigate the planning complexities and design challenges to create unique living spaces.
What's Included
Every change of use project includes architect-led design and full technical documentation.
- Feasibility assessment and planning research
- Pre-application advice with local authority
- Change of use planning application
- Building Regulations strategy for residential conversion
- Design drawings sensitive to building character
- Construction package for your builder
Why work with us?
- Architect-led from day one
- Fixed fees, no surprises
- Planning success rate over 95%
- Direct communication throughout
Common Change of Use Projects
We work on a wide range of conversion types:
- Office to residential - Class O Permitted Development or full planning
- Shop to residential - Class M Permitted Development (with limitations) or full planning
- Agricultural to residential - Class Q Permitted Development or full planning
- Light industrial to residential - Usually requires full planning permission
- Chapel, church, or school - Full planning with heritage considerations
- Pub to residential - Full planning, often with community objection considerations
Permitted Development Rights
Several Permitted Development classes allow change of use without full planning:
- Class O (office to residential) - Prior approval for transport, contamination, flooding, and noise impacts
- Class M (retail to residential) - Limited to 150m² floor space, prior approval required
- Class Q (agricultural to residential) - Maximum 5 dwellings, strict structural criteria
These routes have limitations on external changes, so the building must be suitable for conversion largely as-is. Where Permitted Development does not apply, full planning permission is needed.
Building Regulations Challenges
Non-residential buildings rarely meet residential Building Regulations:
- Fire safety - Escape routes, fire doors, detection, and compartmentation
- Sound insulation - Between units in multi-dwelling conversions
- Thermal performance - Insulation to current standards, often challenging in historic buildings
- Ventilation - Habitable rooms need openable windows and extract ventilation
- Natural light - Minimum window areas for bedrooms and living rooms
We develop strategies that achieve compliance while respecting building character.
Common Questions
How long does a change of use application take?
Prior approval applications (Class O, M, Q) take 56 days. Full planning applications take 8-13 weeks. Allow additional time for pre-application advice and Building Regulations.
Can any building be converted to residential?
Not necessarily. Some buildings are protected from conversion by planning conditions, Article 4 directions, or Conservation Area restrictions. Others may be physically unsuitable due to contamination, flooding, or structural issues.
What about minimum space standards?
Since 2021, homes created through Permitted Development must meet Nationally Described Space Standards (37m² for a 1-bed, 50m² for a 2-bed, etc.). Full planning applications may also impose these standards.
Do I need to pay Community Infrastructure Levy?
Possibly. CIL applies to new residential floor space but credits existing floor space in lawful use. If the building has been vacant for some time, full CIL may be payable. We advise on liability early in the process.