How Quickly do Large-Scale Housing Sites Deliver?
Nathaniel Lichfield & Partners recently published a study which analysed a group of 70 large sites, measuring the average planning approval period (the period from the validation date of the first planning application to the decision date of the first application which permits development on site).
This research focused on two key questions:
- What are realistic lead-in times for large-scale housing developments?; and
- Once the scheme starts delivering, what is a realistic annual build rate?
They found that the average planning approval period for schemes of more than 2,000 dwellings is 6.1 years. In comparison, schemes comprising fewer than 500 units take on average less than two and a half years. The greater the number of homes on a site, the longer the planning approval period becomes. There is a big step-up in time for sites of in-excess of 500 units.
If Local Plans and five year land supply assessments are to place greater reliance on large scale developments, including Garden Towns and Villages to meet housing needs, the assumptions they use about how quickly sites will deliver homes will need to be properly justified.
Finally, in considering the pace of delivery, large-scale brownfield sites deliver at a slower rate than equivalent greenfield sites. 50% more homes per annum are delivered on average on large greenfield sites than large brownfield sites.
To read the full report, please click here.