Residential design Supplementary Planning Document

What is a Supplementary Planning Document (SPD)?

An SPD provides guidance on planning policies in the Local Plan. It can be:

  • appraisals of particular areas
  • planning briefs for specific sites or
  • topic-based supplementary planning guidance notes.

This SPD guides those involved in the design and planning of new homes, conversions and extensions. It aims to improve the quality of new homes in the borough.

The SPD includes standards for internal and external layout and design. It also includes amenity and streetscape considerations. They aim to improve Harrow's public realm and enhance the local character.

The SPD applies to any proposal in Harrow that creates new homes, such as:

  • new-build development
  • any change of use to dwellings
  • conversions of houses to flats. (Alongside extensions to existing dwellings).

SPDs are non-statutory documents. They are not independently examined. They do not have Development Plan status. But, SPDs are subject to thorough public consultation.

This is in line with our Statement of Community Involvement. It must also be consistent with national and regional planning policies.

SPDs are not statutory documents. But, they are considered in planning applications.

Request a copy of an SPD

You can buy a bound copy of the SPD for £10.00 including postage and packaging. To request a copy, contact our planning policy team.

Supporting documents