BLOGS

A reset moment for UK housing delivery

The revised National Planning Policy Framework (NPPF), combined with London's new mandated target of 87,992 homes per year, marks one of the most consequential shifts in England's planning system in a decade. For context, London has not come close to a figure of that scale in recent years — annual completions in the capital have typically landed somewhere between 35,000 and 40,000 homes, meaning the new target represents more than double recent delivery rates.

Layered on top of this is a £39bn commitment to social and affordable housing, signalling that government wants volume and tenure mix, not just planning consents on paper. For developers, lenders and investors, this changes three things simultaneously: what land is worth, how planning risk is priced, and how realistic delivery timelines need to be when underwriting a scheme.

Land values: optimism bias meets viability reality

Ambitious housing targets tend to push landowners' price expectations up before delivery capacity has actually improved. Sites in boroughs newly earmarked for higher density or released green belt/grey belt land often see asking prices move quickly, even where infrastructure, planning capacity and construction cost inflation haven't shifted.

This is exactly where comparables discipline matters most. REalyse data on achieved sale prices per square foot by borough and property type gives developers and lenders a way to stress-test whether a proposed scheme's GDV assumptions are grounded in actual recent transactions, rather than in a landowner's expectation of what an 88,000-home target "should" be worth. Where £/sqft comparables show a widening gap between what land is being marketed at and what completed units are actually achieving on resale, that's an early warning sign for viability — particularly for schemes carrying higher affordable housing percentages under the new framework.

Boroughs with strong existing sales transaction density and clear planning consent pipelines are likely to command a valuation premium over areas where policy ambition has outpaced any track record of delivery. Investors sourcing sites should expect land value dispersion to widen across London over the next 12–24 months as the market reprices around which locations can realistically deliver at scale.

Where affordable housing funding shifts the maths

The £39bn affordable and social housing commitment doesn't just fund grant — it changes scheme viability at the point of appraisal. Higher grant availability can offset higher affordable housing percentages required under revised local plans, but only where schemes are structured to access it early. Developers modelling GDV need updated assumptions on blended sales values per square foot across market and affordable tenure, something best benchmarked against actual comparable schemes in the same postcode district rather than borough-wide averages, given how much achieved pricing can vary block by block.

Planning risk is being repriced, not removed

A more permissive-sounding NPPF does not automatically mean faster or lower-risk consents. What it typically does is shift risk to a different stage of the process: more sites become theoretically consentable, but local authority capacity, member-level scrutiny, and appeals volume can all increase in parallel as boroughs try to reconcile national targets with local infrastructure constraints.

This is where planning pipeline data becomes essential rather than optional. Tracking the volume and status of planning applications — submitted, in progress, granted, refused — by borough and by primary use type gives a much clearer read on where consent risk is actually falling than headline policy alone. A borough showing a large uplift in submitted applications but a lagging grant rate suggests bottlenecks are building, even if that authority is nominally aligned with the new targets. Conversely, authorities that are converting applications to grants at pace, and where total pipeline units in progress are climbing steadily, are the more investable near-term markets for developers wanting certainty of delivery timeline.

For lenders and credit teams, this pipeline visibility also matters for concentration risk. If a loan book is heavily weighted toward boroughs where planning throughput data shows granted consents plateauing relative to submissions, that's a signal worth flagging well before it shows up in delayed drawdowns or scheme delays.

Delivery expectations: matching ambition to absorption

Even where land is secured and consent is granted, the 87,992-home target raises a separate question: can the market absorb that volume of new supply at the prices needed to make schemes stack up? Days on market and asking-to-achieved price discount data by area are useful proxies here. Areas already showing lengthening time to sell or wider discounts to asking price for comparable new-build stock may struggle to absorb a steep increase in supply without downward pressure on achieved £/sqft — which feeds straight back into land value assumptions.

Rental market data is equally relevant, particularly for schemes considering a build-to-rent or affordable-rent led approach as an alternative route to viability under the new framework. Gross yield benchmarks by area and bedroom count help identify where rental absorption is strong enough to support BTR as a genuine delivery lever for the target, rather than a fallback when for-sale viability doesn't work.

Outlook

The direction of travel is clear: more permissive national policy, a much larger London target, and substantial new affordable housing funding are together reshaping how sites get valued, how planning risk gets underwritten, and how realistic timelines get set. But policy ambition and delivery capacity rarely move at the same speed. The developers, investors and lenders who outperform through this transition will be the ones treating comparables, planning pipeline data and absorption metrics as a continuous underwriting discipline — not a one-off check at acquisition — as boroughs are tested against a target of this scale.