Commercial to Residential Conversions
The legal process of converting a property from one planning category to another — the bridge between what a building was and what it could be. We design your conversion, guide it through planning, and build it too.
What is Change of Use in Planning?
Imagine you've found the perfect building — an old shop on a quiet street, a former office with character, or a warehouse with endless potential. You can see exactly what it could become: a beautiful home, stylish flats, or a thriving short-term let. But there's one thing standing between your vision and reality: change of use.
Change of use is simply the legal process of converting a property from one planning category to another. It's the bridge between what a building was and what it could be. At Hosannahs, we don't just hand you drawings and wish you luck — we walk with you through every step, designing your conversion, guiding it through planning, and building it ourselves. That's why we achieve a 98% planning approval rate.
Understanding Use Classes
In England and Wales, properties are categorised into Use Classes defined by the Town and Country Planning (Use Classes) Order 1987 (as amended). Changing between certain classes requires planning permission, while others can happen under Permitted Development rights.
Dwellinghouses
Standard residential homes for families or up to 6 people living as a household.
HMOs
Houses in Multiple Occupation with 3-6 unrelated individuals sharing facilities.
Large HMOs
HMOs with 7+ occupants require specific planning permission.
Commercial
Shops, restaurants, offices, gyms, health centres, nurseries.
Learning & Non-Residential
Schools, museums, libraries, public halls, churches.
Local Community
Small shops, community halls, outdoor recreation areas.
Why Our Approach Improves Your Approval Chances
Most applicants hire a designer for drawings, then find a separate builder — and wonder why their application struggles. Here's why our integrated approach achieves better results.
Professional Design Drawings
Clear, compliant drawings that planning officers trust.
Compliance Built In
Building regulations and planning policy considered from day one.
Design & Build Continuity
The team that designs is connected to the team that builds.
98% Approval Rate
A proven track record across 500+ UK projects.
When Do You Need Planning Permission?
Not all changes of use require a full planning application. Some conversions are allowed under Permitted Development Rights. Our team assesses your specific situation and advises on the fastest, most cost-effective route.
Often Permitted Development
- Office (Class E) to residential (C3)
- Retail (Class E) to residential (C3)
- Light industrial to residential
- Agricultural buildings to homes
- Some C3 to C4 HMO conversions
Usually Needs Full Planning
- Large HMOs (7+ occupants)
- Residential to commercial
- Listed buildings (any change)
- Conservation area restrictions
- Article 4 direction areas
The Prior Approval Process
Even when a change qualifies as Permitted Development, you often need Prior Approval from your local planning authority. This lighter-touch process considers specific matters:
This is where professional drawings matter most. Prior Approval applications are often rejected because submitted plans don't adequately demonstrate natural light compliance or noise mitigation. Our detailed interior layouts, window schedules, and acoustic specifications give planning officers confidence that the conversion will create quality living spaces.
Article 4 Directions
Many local authorities have introduced Article 4 Directions to remove Permitted Development rights in specific areas. This is common for HMO conversions in university towns or office-to-residential changes in commercial centres. Always check with your local council before assuming PD rights apply — or better yet, let us check for you as part of our free consultation.
The Hosannahs Difference
When you work with a traditional design practice, they produce drawings and you're on your own to find a builder, manage the project, and hope what gets built matches what was approved. With Hosannahs:
- One team, start to finish. The designer who draws your plans is connected to the team that builds them. No miscommunication, no lost detail.
- Buildable designs. We know construction costs and timelines because we do the building. Your approved plans won't need expensive revisions when construction starts.
- Accountability. Planning officers trust applications from design & build firms because we have skin in the game.
Common Change of Use Projects We Handle
From office-to-flats conversions to listed building restorations, we've delivered 500+ successful change of use projects across the UK.
Why Move Your Project Forward With Us
Move your project forward with a team trusted with 500+ property projects across the UK.
Ready to Start Your Change of Use Project?
Book a free consultation to discuss your property. We'll assess the planning route, provide a cost estimate, and explain how our design & build approach can maximise your chances of approval.