Permitted Development
Permitted Development & House Extension Services
Maximise Your Space Without the Stress
Dreaming of a bigger kitchen, an extra bedroom, or more room for the family but unsure where to start? At Arch One, we help homeowners across the UK unlock the full potential of their homes through smart, well-designed house extensions. Whether you need full planning permission or can build under permitted development rights, we’ll guide you through every step of the process.
What Is Permitted Development?
Permitted Development (PD) allows homeowners in the UK to make certain changes to their property without applying for full planning permission. This includes many types of home extensions, provided they meet specific criteria around size, height, location, and impact on neighbours.
We’ll assess your property and advise whether your extension qualifies under PD, and if so, we’ll prepare a Lawful Development Certificate application to give you legal proof before you build.
Not all homes qualify for PD, especially flats, listed buildings, and properties in conservation areas. We can advise on the best route forward for your specific case.
Types of House Extensions We Design
Whether your home is detached, semi-detached, or terraced, we can design extensions that are practical, stylish, and compliant.
Rear Extensions
Add valuable space for an open-plan kitchen, dining area, or living room. These can often be built under PD depending on depth and height limits.
Side Extensions
Make use of unused space at the side of your property. Ideal for expanding kitchens, utilities, or creating a downstairs WC.
Wraparound Extensions
Combine side and rear extensions to create a large, L-shaped addition that transforms the ground floor layout.
Loft Conversions
Convert your unused attic into a bedroom, office, or ensuite. Many loft conversions are allowed under PD, provided volume limits are met.
Two-Storey Extensions
Add extra space across two floors for growing families. Bedrooms upstairs, living space below. These may require full planning, but we’ll assess and advise.
Outbuildings & Garden Rooms
Home offices, studios, gyms, or annexes. Outbuildings can often be built under PD, provided they meet size and usage rules.
Our House Extension & Permitted Development Process
We offer a clear, step-by-step service to make your extension project smooth and stress-free.
1. Free Consultation
We start by understanding your goals, budget, and the potential of your property. We’ll explain whether your extension can fall under permitted development or if planning permission is needed.
2. Measured Survey
Our team carries out a detailed survey of your home to capture accurate dimensions and existing conditions. This forms the foundation for your design.
3. Concept Design
We create tailored extension designs that reflect your needs, enhance your layout, and meet planning or PD requirements. You’ll review and refine the design with our team.
4. Planning or PD Submission
If your project qualifies for permitted development, we prepare and submit a Lawful Development Certificate (LDC) to your local council. For projects needing planning permission, we handle the full application process.
5. Building Regulations Drawings
Once approved, we prepare detailed technical drawings that meet Building Regulations, ready for your builder to quote and build from.
6. Support During Construction
We’re here to answer questions and liaise with contractors if needed, ensuring your project stays on track.
Ready to Extend Your Home?
Let’s bring your ideas to life with a well-designed extension that works for you and works within the planning system. Book a free initial consultation today and take the first step toward more space and better living.
Call us: (0) 203 576 3352
Email: info@arch-one.co.uk
Where we Operate: London, Greater Manchester, Leeds, Leicester