Permitted Development Rights Class AA

Class AA of the General Permitted Development Order (GPDO) presents new opportunities for homeowners to extend their properties by adding up to two additional storeys. Introduced as part of Schedule 2, Part 1 of the GPDO (England) 2015, it allows upward extensions, subject to certain criteria, limitations, and conditions. However, securing approval under this permitted development right has proven complex due to the varying interpretations of key regulations and design considerations.

This document explores the nuances, including key judicial rulings such as the Cab Housing Ltd & Ors v Secretary of State [2022] case, which clarified the scope of “external appearance” and its impact on neighbouring properties. It also highlights the challenges faced by applicants, the importance of contextually responsive design, and the significance of maintaining high-quality design standards within the framework of permitted development.

By analysing recent planning appeals and court judgements, this guide provides a comprehensive overview of the considerations involved in pursuing upward extensions under Class AA. Whether you’re a homeowner or a developer, understanding the intricacies is crucial for successfully navigating the approval process and achieving your design goals.

For more detailed insights, click the link below to access the full guide.