The National Planning Policy Framework (NPPF) requires all planning authorities to identify and update annually a supply of specific deliverable sites sufficient to provide five years' worth of housing against their housing requirements, taking in to account any previous shortfall in delivery and with an additional buffer to be moved forward from later in the plan period.

East Dorset 2019/20 Five Year Housing Land Supply

Previously, Christchurch and East Dorset published a joint five year supply position reflecting the jointly adopted Local Plan covering the two former Dorset local authority areas. Since the formation of the unitary councils of Dorset Council and Bournemouth, Christchurch and Poole Council, the two former local planning authorities now form part of the larger unitary authorities.

Given the above position and to move towards the calculation of the five year housing land supply on the basis of the new unitary authorities, the Councils have taken the decision to produce separate five-year housing land supply figures for the former local planning authority areas of East Dorset and Christchurch. 

For the period 2020 to 2025, the East Dorset area can currently demonstrate a supply of deliverable sites equivalent to 5.36 years. The calculation for this is available in the East Dorset Five-year housing land supply Report 2019/20, page 24, Figure 4.1.

East Dorset 2018/19 Five Year Housing Land Supply

For the period 2019 to 2024, East Dorset did not have a sufficient supply to meet the five-year supply requirement as required by national policy and can only demonstrate a supply of deliverable sites equivalent to 4.91 years. The calculation for this is available in the East Dorset Five-year housing land supply Report 2018/19, page 24, Figure 4.1.

Christchurch and East Dorset Core Strategy - 2017/18 Five Year Housing Land Supply

Housing land potential has been assessed for the plan area as a whole in line with the housing provision set out in Policy KS4 of the  Christchurch and East Dorset Local Plan part 1 - Core Strategy, adopted in April 2014. The following document sets out the supply for the period 2018 to 2023 and a schedule of all the sites that make up the supply:

This document takes into account the results of the Housing Delivery Test published by the Government in February 2019. As a result of the Housing Delivery Test this shows that Christchurch and East Dorset have a 5 year supply of 4.77 years when a 20% buffer is applied. The document also sets out that when a 5% buffer is applied Christchurch and East Dorset demonstrate a supply of 5.45 years. 

Calculating Christchurch and East Dorset's 5 Year Supply

The prediction of housing completions has been informed by evidence in the Strategic Housing Land Availability Assessments, pre-application meetings with the prospective developers and planning permissions where they have been issued. This information is supplemented with residential monitoring information and discussions with Development Management and policy colleagues. It has identified a 5 year supply of 4,384 units. 

The 5 year housing requirement for Christchurch and East Dorset is calculated at 4,598, which incorporates a 20% buffer and Core Strategy plan shortfall.  Against our identified housing supply, this results in a shortfall of 214 units.

Applying buffers and shortfall to the housing target

The Councils have previously delivered the necessary housing to meet historic targets, and prior to the publication of the Housing Delivery Test (HDT) applied a 5% buffer.  However, following the publication of the HDT in February a 20% buffer has now been applied as delivery has fallen below 85% of the Core Strategy's annual housing target over the past 3 years

For the Core Strategy plan shortfall, Christchurch and East Dorset Councils use the 'Sedgefield' methodology to address the previous years under delivery of houses.  This is to best clarify the Councils' position against national guidance and to use a more simplified approach to calculating the 5 year supply.

The Strategic Housing Land Availability Assessment reports for Christchurch and East Dorset explain further how the 5 year requirement is calculated.

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