Single storey infill rear extension in Granleigh Road – Planning Approved

Project Ref: 2524CM_HH

Project Overview

Located on Granleigh Road in London Borough of Waltham Forest, this project involved a single storey infill rear extension for one of our clients. The homeowners were seeking to maximise their living space while maintaining the character of their mid‑terrace property. As experienced London architects, we at Detailed Planning provided a comprehensive service – from initial feasibility studies through to securing planning approval with the London Borough of Waltham Forest planning department. Our role encompassed developing a scheme that responded to the client’s brief, respected neighbouring properties and met all local planning policy requirements. We undertook site analysis, prepared drawings and documents, and liaised closely with planning officers to ensure a smooth journey from concept to approval. By identifying planning constraints such as conservation area policies, permitted development limits and neighbour amenity considerations early on, we could steer the design toward a proposal that would be favourably received. This proactive approach saved time and reduced the risk of refusal. Throughout the pre‑application stage we worked collaboratively with the client, refining layouts and exploring options for improving the relationship between the kitchen, dining and living areas. The resulting brief prioritised light, flow and connection to the garden while keeping within the realities of budget and buildability.

Design & Planning

The existing property on Granleigh Road offered potential for extension but also presented constraints such as limited width and a sensitive rear outlook. Our design strategy centred on creating a light‑filled, open‑plan living space that would connect seamlessly with the garden. We proposed high quality materials, including brickwork to match the existing house and slim‑frame aluminium glazing to maximise natural light. A carefully detailed roof with roof lights brings sunshine deep into the plan, while a modest parapet ensures the extension sits comfortably alongside neighbouring dwellings. Internally, the new footprint allows for a generous kitchen and dining zone with views through to the patio and garden beyond. Externally, we selected materials and detailing that complement the host building – for example, matching brick courses, sympathetic mortar colour and discreet lead flashings. Our team also considered sustainability features such as improved insulation, high‑performance glazing and the potential for integrating photovoltaics on the roof. Throughout the planning process we addressed considerations such as overlooking, daylight and massing. By engaging early with the London Borough of Waltham Forest and adapting our design in response to feedback, we secured a swift planning permission. This demonstrates how thoughtful design and clear communication can unlock your home’s potential. We prepared planning drawings, a comprehensive design and access statement and assisted the client in responding to neighbour comments. Our experience navigating the intricacies of planning policy ensured that we could justify every element of the proposal, leading to a successful approval on the first submission.

Project Highlights

• Generous open‑plan layout enhancing flow between kitchen, dining and living areas.
• Slim‑frame glazing and roof lights flooding the new space with natural light.
• High quality materials and detailing complementing the existing house while adding contemporary flair.

Key Drawings

Outcome

The approved single storey infill rear extension has unlocked the full potential of this London Borough of Waltham Forest home. The new extension provides a bright and spacious family hub that flows effortlessly into the garden, enhancing daily living and future resale value. By working with Detailed Planning, our clients gained a design tailored to their needs and a stress‑free planning process. The result is a transformed home with improved functionality, better connection to the outdoors and a contemporary aesthetic that still respects the character of the surrounding area. Beyond the immediate lifestyle benefits, the extension is likely to add significant value to the property, making it a smart investment for the future. Our clients have reported that the additional space has improved family life, provided flexibility for home working and entertaining, and created a stronger link between indoor and outdoor areas. Neighbours have also remarked on the sensitive design and high quality of construction, highlighting how well the extension fits with the existing streetscape.

Project reference: 2524CM_HH

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