NPPF N4: Protected Landscapes

N4: Protected Landscapes Assessment of the effect of major development proposals. Heritage HE5: Assessing effects on heritage assets Heritage impact assessment. assessment of the significance of the asset(s) affected (including any contribution made by their setting) and of the potential effect(s) of the proposal(s) on their significance. Annex D: Housing calculations and supply 1. This Annex sets out how housing need should be calculated using the standard method, how land supply should be assessed, and the Housing Delivery Test applied. It also sets out how a five year supply of traveller sites should be established. It should be read alongside Chapter 4 (Achieving Sustainable Development) and Chapter 6 (Delivering A Sufficient Supply of Homes), and the Housing Delivery Test Rule Book. The standard method 2. The standard method calculates a minimum annual local housing need figure as follows: Step 1: Setting the baseline – 0.8% of existing housing stock for the area 3. Set the baseline using the value of existing housing stock for the area of the local authority as set out in the data on Dwelling Stock Estimates data73, published annually. The baseline is 0.8% of the existing housing stock for the area, and the most recent data published at the time of the calculation should be used. Step 2: An adjustment to take account of affordability 4. The housing stock baseline figure (as calculated in step 1) is then adjusted based on the affordability of the area. 5. The affordability data used is the median workplace-based affordability ratios, published annually by the Office for National Statistics at a local authority level. The mean average affordability over the five most recent years for which data is available should be used. 6. No adjustment is applied where the ratio is five or below. For each 1% the ratio is above five, the housing stock baseline should be increased by 0.95%. An authority with a ratio of 10 will have a 95% increase on its annual housing stock baseline. 7. Where an adjustment is to be made, the precise formula is as follows: Adjustment Factor = ((five year average affordability ratio-5)/5)×0.95 + Five year housing land supply 8. Local planning authorities should identify and update annually a supply of specific deliverable sites. This should be sufficient to provide a minimum of five years’ worth of housing, assessed against their housing requirement in the development plan, or against their local housing need (calculated using the standard method) where the development plan housing requirement is more than five years old. Table 125: dwelling stock estimates by local authority district: Live tables on dwelling stock (including vacants) - GOV.UK. 119 9. The supply of specific deliverable sites should include a buffer (moved forward from later in the plan period) of: a. 5% to ensure choice and competition in the market for land; or b. 20% where there has been significant under delivery74 of housing over the previous three years, to improve the prospect of achieving the planned supply; or c. For the purposes of decision-making only, 20% where a local planning authority has a housing requirement adopted in the last five years examined against a version of the Framework published prior to December 202475, and whose annual average housing requirement76 is 80% or less of the most up-to-date local housing need figure calculated using the standard method set out above. Five year supply of traveller sites 10. Local planning authorities should identify and update annually a supply of specific deliverable traveller sites. This should be sufficient to provide a minimum of five years’ worth of pitches and plots, assessed against their pitch and plot requirement in the development plan. The Housing Delivery Test 11. This measures net homes delivered in a local authority area against the homes required, using national statistics and local authority data. The Secretary of State will seek to publish the Housing Delivery Test results for each local authority in England annually. 12. Local planning authorities should monitor progress in building out sites which have permission. Where the Housing Delivery Test indicates that delivery has fallen below the local planning authority’s housing requirement over the previous three years, the following policy consequences apply: a. Where delivery falls below 95% of the requirement over the previous three years, the authority should prepare an action plan to assess the causes of under-delivery and identify actions to increase delivery in the future; b. Where delivery falls below 85% of the requirement over the previous three years, a buffer of 20% should be added to the identified supply of specific deliverable sites. This is in addition to the requirement for an action plan; c. Where delivery falls below 75% of the requirement over the previous three years, an evidenced unmet need for housing is deemed to exist for the purpose of applying This will be measured again