Build Your Extension Without Planning Permission
Maximise your space using Permitted Development—designed properly, approved efficiently, and built to a premium standard.
Design • Planning • Build • Project Management — All Under One Roof
What Can You Build Under Permitted Development?
Key Limits
- Rear: 3m (semi/terraced) / 4m (detached)
- Larger scheme: 6m / 8m (prior approval)
- Max height: 4m
- Eaves: 3m near boundary
- Side extensions restricted
- Max 50% land coverage
Important Notes
- Not applicable to flats
- Restrictions in conservation areas
- Measured from original house (1948 rule)
- Neighbour consultation required for larger builds
Why Work With Uno Home?
We don’t just design extensions—we make them happen. Seamlessly.
Design-Led Approach
Architectural thinking that maximises space, light, and value.
Planning Expertise
We navigate Permitted Development and approvals with precision.
Turnkey Delivery
From concept to completion—fully managed, no stress.
Our Process
1. Consultation
Understand your vision and feasibility
2. Design
Concepts tailored to your property
3. Approval
PD or planning handled correctly
4. Build
Delivered to a premium standard
Ready to Explore Your Extension?
Get expert advice tailored to your property—before you commit to design or build.