Conversion from Two Flats to a Single Dwellinghouse Approved in Barnet

Project Overview

This project involved the proposed conversion of a property from two self-contained flats back into one single dwellinghouse at 21 and 21a Goodwyn Avenue in Barnet. As part of a lawful development certificate application for a proposed use, our architects in Barnet provided architectural and planning support to demonstrate that the change could be carried out lawfully without the need for a full planning application.

The proposal sought to return the building to use as one family home, improving the internal arrangement and allowing the property to function as a single dwellinghouse. Our architectural design services helped clearly present the existing and proposed layouts, while our design process ensured the application was supported by coordinated drawings and relevant planning evidence.

Whether it’s securing a lawful development certificate, assessing permitted development rights, or confirming the lawful planning position of a property, Detailed Planning’s experience in Barnet helps homeowners manage risk before committing to works.

Design & Planning Strategy

The planning strategy focused on demonstrating that the proposed change from two flats to one dwellinghouse was lawful and could be confirmed through a lawful development certificate for proposed use.

Rather than seeking full planning permission, the application was prepared to establish that the proposed use of the property as a single dwellinghouse would be lawful. This required a clear explanation of the existing arrangement, the proposed use and the planning basis for the certificate.

Our team prepared coordinated architectural drawings and supporting information, submitted the lawful development certificate application to the council and liaised with officers during the determination process.

Project Highlights

• Conversion of two self-contained flats back into one single dwellinghouse
• Lawful development certificate application for proposed use
• Clear existing and proposed drawings prepared to explain the change
• Planning-led strategy avoiding the need for a full householder planning application
• Improved internal arrangement to allow the property to function as one family home

Outcome

The lawful development certificate was granted in May 2024, confirming that the proposed use of the property as a single dwellinghouse was lawful.

The approved scheme allows the property to be brought back into use as one home, creating a more practical layout and improving the long-term usability of the building.

If you are considering converting flats back into a single home, or need to confirm whether a proposed use is lawful, our planning-led architectural team can help you assess feasibility, prepare the drawings and manage the application process from start to finish. Learn more about our services for home owners and how we can support your project.

Project reference: 2402MS_LDC

Next steps: If you’re ready to discuss your own project, schedule a call with our team.

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