Services

Dormer · Hip-to-gable · Mansard · Velux

Loft Conversions

A loft conversion is one of the most effective ways to add space and value to your home. We design the right type of conversion for your property — whether that is a rear dormer, a hip-to-gable, a full mansard or simple Velux rooflights — and take it through planning or a Lawful Development Certificate.

What you receive

• Measured survey of the existing property
• Design drawings with 3D views
• Planning application or Lawful Development Certificate
• Building regulations drawings
• Structural coordination with our engineer

Single storey · Double storey · Wraparound · Side return · Mansard · Garage conversion · Porch

Rear Extensions, Side Returns & Garage Conversions

A rear extension can open up the ground floor of your home — creating a generous kitchen-diner and connecting the interior to the garden. We also design side returns, wraparounds, garage conversions and porches. We design extensions that are light-filled, practical and in keeping with your property.

What you receive

• Measured survey of the existing property
• Design drawings with 3D views
• Planning application, Prior Approval or Lawful Development Certificate
• Building regulations drawings
• Structural coordination with our engineer

Conservation area · Article 4 · Heritage statement · Mansard · Rear dormer · Side return

Conservation Areas & Period Properties

Many London homes sit in conservation areas or are covered by Article 4 directions, which remove some permitted development rights. We design extensions and roof alterations that respect the character of period streets — including mansard roof extensions, rear dormers on terraced houses and side return extensions — and prepare the heritage and design statements councils expect.

What you receive

• Design drawings sensitive to the conservation area character
• Heritage and design statement
• Planning application to the local planning authority
• Handling of all correspondence and queries

Full planning application · Prior Approval · Lawful Development Certificate

Planning, Prior Approval & Lawful Development Certificates

Larger single-storey rear extensions — up to 6m on semi-detached and terraced houses, or 8m on detached houses — usually go through Prior Approval, a 42-day decision process. Many loft conversions are confirmed with a Lawful Development Certificate, which councils aim to decide within 8 weeks of validation. Other schemes need a householder planning application, which takes 8 weeks from validation. We prepare and submit all three types, handling all correspondence and queries on your behalf.

What you receive

• Existing and proposed drawings to planning standard
• Design and access statement where required
• Submission to the local planning authority
• Handling of all correspondence and queries

Technical drawings · Structural coordination

Building Regulations Drawings

Once planning is approved, your builder needs detailed technical drawings to price the work and build from. We produce building regulations drawings that are clear, complete and coordinated with your structural engineer. Building regulations drawings usually take 4–6 weeks after planning, and can run alongside the planning process to save time.

What you receive

• Detailed technical drawings for building control
• Structural coordination with our engineer
• Specification notes and construction details

3D views · Design presentations

3D Visualisations

We produce clear 3D drawings on every project so you can see the proportions, light and layout of your proposed extension or loft conversion before any building work begins. This helps you refine the design with confidence and arrive at a scheme you are happy with.

What you receive

• 3D views of the proposed design
• Presented alongside 2D drawings for clarity