Planning for the Future, the government was consulting on changes to the current planning system (https://www.gov.uk/government/consultations/changes-to-the-current-planning-system).  One element of that is a proposed new standard method for calculating housing allocations.  Planning consultancy Nathaniel Lichfield & Partners Ltd has looked at the proposed new model and crunched the numbers to produce a comparison for housing numbers under the existing model and the proposed new model.  The data is presented down to a district level.  Overall, the proposed new model would (unsurprisingly) result in more houses in every district in Northamptonshire, except Northampton.  You can see the data and methodology at:    https://lichfields.uk/grow-renew-protect-planning-for-the-future/how-many-homes-the-new-standard-method/