How We Get House Extensions Approved
At Notion Architects, we achieve a 98% first-time planning approval rate, rising to 100% on resubmission, giving our clients confidence from the outset. We guide you on the most appropriate design, layout and materials to maximise your chances of approval, while keeping your project aligned with your budget and goals. From initial concept through to submission, we manage the entire planning process on your behalf, handling all drawings, applications and communication with the local authority so you can move forward with clarity and peace of mind.
Why clients choose us
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98% first-time approval rate
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Experience with Plymouth and surrounding areas planning policies
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Clear, practical design advice
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End-to-end service
Single Storey Rear Extension Approved – Beacon Down Avenue, Plymouth
Type: Single storey rear extension
Location: Plymouth
Stage: Planning approved April 2026
A single storey rear extension at Beacon Down Avenue, Plymouth was successfully granted planning permission, delivering the additional living space the client wanted while navigating local planning requirements.
The proposal was generally well received; however, the planning officer raised concerns regarding the use of white render. To address this, we worked proactively with the council and revised the external finish to a more suitable pebble dash, ensuring the design aligned with local character.
Importantly, the overall form, layout, and proportions of the extension were retained, including the window and door sizes that were key to the client’s vision. This meant the design intent remained intact while still achieving a successful outcome.
Planning permission was approved without the need for further changes, and the client was very pleased with both the process and the final design.
“This project demonstrates how early design decisions and clear communication with the local authority can secure approval without compromising what matters most to the client.”
Big win for a small utility room extension
Type: Single storey rear extension
Location: Tavistock
Stage: Planning approved June 2026
An application for a larger, full-width rear extension was initially refused. We took the decision to appeal, but unfortunately the refusal was upheld.
We then submitted revised proposals for a smaller extension under permitted development rights. However, the rear of the property was classified as the principal elevation, meaning that permitted development rights did not apply.
Following discussions with the planning officer, a compromise was reached to submit a householder planning application for the smaller extension, which was subsequently approved.
The client was delighted with the outcome and is now looking forward to starting construction later this year.