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Local Development Framework evidence base for housing

LDF evidence base: housing.

Strategic housing market assessment

An updated south-east London sub-regional strategic housing market assessment 2014 (SHMA) has been prepared for the Council by Cobweb Consulting.

In 2009 a local SHMA was prepared for the Council by consultants Opinion Research Services (ORS). The local SHMA was further supported by a previous south east London sub-regional SHMA prepared by ORS for the London boroughs’ of Bexley, Bromley, Greenwich, Lewisham and Southwark.

Affordable housing viability study

The Affordable Housing Viability Study (AHVS) was published in June 2009 tested the ability of a range of sites throughout the borough to provide 50% affordable housing, with and without grant and with various tenure mixes.

Strategic housing land availability assessment

In 2008 the Council began work on a strategic housing land availability assessment (SHLAA) at the local level in accordance with national planning policy Planning Policy Statement 3 Housing (PPS3). The primary role of the SHLAA was to identity as many sites as possible with the potential for housing development and estimate when they were likely to be developed, in order to assess how Lewisham could meet its housing requirements for a minimum ten year period.

Soon after the consultation period on the Lewisham SHLAA finished (March 2008) a decision was made to undertake a London wide SHLAA (which included a Housing Capacity Study) coordinated by the Greater London Authority (GLA) with input from all London boroughs. Lewisham agreed to this approach and the work that had been completed for the Lewisham SHLAA was incorporated into the London SHLAA, most notably the identification of potential sites. The SHLAA identified large sites across London. Large sites were defined as those greater that 0.25 ha.

An assessment of capacity was made by entering data into the GLA model. For potential housing sites, the study system uses the mid-point of the density ranges in the SRQ matrix in the London Plan to generate a default density for each site. This is based on the site area, the accessibility to public transport (PTAL) and the setting of the site.

Housing conversions study

The consultation during the production of the Core Strategy identified local concern about the number of conversions from single residential dwellings to create multiple flats. In response to these concerns, the Council has undertaken this study to assess the impact of residential conversions and provide recommendations for policy within the forthcoming Development Management Local Plan.

The purpose of this study is to:

  • assess the extent of residential conversions in the borough, the impact on the housing supply and availability of family housing

  • assess the ability to achieve and maintain mixed and balanced communities in the context of national, regional and local policy

  • make recommendations on the future treatment of conversion activity on the basis of the information presented.

​Housing implementation strategy

The Housing Implementation Strategy describes the approach to managing the delivery of the housing and previously-developed land targets and trajectories. The housing implementation strategy indicates what ranges of housing delivery and previously-developed land performance are acceptable and what action may be taken in what circumstances, so that there are clear and transparent points that will trigger management action.