Single Storey Rear Extension Approved via Prior Approval in Chingford

Project Ref: 1711LH_PA

Location: Lambourne Gardens, Chingford — London Borough of Waltham Forest

For this mid-terrace home in Chingford, our brief was clear: create a brighter, better-connected family space without overcomplicating the approvals process. We guided the homeowners through the Prior Approval (Larger Home Extension) route, preparing the drawings, forms and supporting information to secure consent efficiently while protecting neighbour amenity.

What We Designed

• Open-plan family hub linking kitchen, dining and living spaces with clear sightlines to the garden.
• Slim-frame aluminium doors and a picture window to maximise daylight and views.
• Flat roof with rooflights to bring light deep into the plan and keep massing neighbour-friendly.
• Materials that complement the host property—matching brickwork/render and discreet detailing for a timeless finish.

Why Prior Approval?

For many terraced and semi-detached homes, a rear extension can qualify under the Larger Home Extension scheme if it meets specific limits and neighbour consultation rules. We assessed feasibility early, then tailored the design so it fits the criteria and respects neighbouring outlook and daylight—key to a smooth approval.

Planning Strategy & Submission

We handled the full submission, coordinating drawings and documents, and responding to any consultee comments. Our approach focused on:

• Accurate measured drawings and clear elevations/sections to evidence height, depth and boundary relationships.
• Neighbour amenity—careful massing, parapet height and rooflight positioning to reduce impact.
• Buildability—details that are practical for contractors and align with the client’s budget.

Key Drawings

Outcome

The approved extension unlocks a light-filled, flexible ground floor that improves everyday living, entertaining and indoor-outdoor flow—while adding long-term value. The design delivers a contemporary feel that remains sympathetic to the terrace and wider street scene.

Tips: Smoother Prior Approval for Larger Home Extensions

1. Talk to your neighbours early. A friendly chat before notices go out can reduce objections and smooth the process.
2. Check feasibility first. Small tweaks to depth, height or roof treatment can keep you within the rules.
3. Prioritise daylight and privacy. Consider rooflights, parapet heights and window placement to protect neighbour amenity.
4. Evidence everything clearly. Clean, scaled drawings and simple annotations help case officers (and neighbours) understand the proposal.
5. Think ahead to Building Regulations. Structure, insulation, drainage and ventilation all matter—design with compliance in mind to avoid redesign later.

Learn More & Next Steps

• Explore insights and homeowner guides on our architectural blog.
• Have a similar project in mind? Get in touch and we’ll assess whether Prior Approval or a full planning application is the best route for your home.
• Discover who we are and how we work at Detailed Planning.

FAQs: Prior Approval (Larger Home Extension)

Will my home qualify?
It depends on property type, previous extensions, depth/height limits and boundary conditions. We can quickly assess your address and advise the most viable route.

What about neighbour objections?
Prior Approval includes a neighbour consultation. Early, open conversations and a considerate design usually minimise concerns. We help you manage this process.

Is Prior Approval faster than full planning?
Often, yes—provided the proposal meets the criteria and is well presented. We’ll recommend the route that gives you the best balance of speed and certainty.

Do I still need Building Regulations approval?
Yes. After Prior Approval, you’ll still need Building Regulations drawings and inspections before and during construction.