BLOGS

A reform delayed is a pipeline deferred

The national scheme of delegation (NSD) — a central plank of the Planning and Infrastructure Bill — was designed to do something elegantly simple: define, in law, which planning applications must go before a planning committee and which can be determined by professional planning officers under delegated authority.

The intent was to cut the volume of routine or minor applications being unnecessarily escalated to committee, freeing officers to process more applications faster and enabling committees to focus their scrutiny where it genuinely adds value. For an industry that has spent years watching viable schemes stall in bureaucratic queuing systems, it was a welcome signal.

The government's decision to delay implementation of the NSD by one month — a short pause, but a symbolically significant one — has unsettled a sector already operating under acute delivery pressure. It is not the duration of the delay that matters most; it is what the delay reveals about the fragility of the reform timetable, and the uncertainty it injects into developers' forward planning.

The planning pipeline already under strain

To understand why timing matters, you need only look at the scale of what is already sitting undecided in the system.

REalyse data covering the last 24 months shows that more than 16,900 residential planning applications are currently awaiting a decision across England and Wales — representing close to 780,000 potential new homes. That figure dwarfs both the number approved (around 30,400 applications, yielding approximately 377,000 units) and the number refused (roughly 12,350 applications covering 85,000 units) over the same period.

In other words, the pending pipeline now exceeds the approved output by more than two to one in terms of residential units. This is not a system approaching equilibrium; it is a system accumulating backlog.

Application volumes have also been rising. REalyse data shows monthly residential application submissions running consistently in the 3,000–3,700 range through the second half of 2025, with October 2025 producing a notable spike to over 132,000 units across applications received in a single month. Even accounting for large strategic schemes, that level of throughput is placing enormous processing pressure on local planning departments that, in many areas, are under-resourced and over-committed.

Decision times: the bottleneck made visible

The statutory benchmark for major planning applications in England is 13 weeks. For minor applications, it drops to eight. The reality on the ground tells a very different story.

REalyse analysis of decision-time data for the last 24 months identifies the 20 slowest local authorities for residential applications — and not one of them comes close to the statutory standard. The average across this cohort sits at 187 days, more than double the 13-week limit. The slowest — Melton in Leicestershire — averaged 230 days per decision. Denbighshire in Wales recorded 222 days; Crawley in West Sussex, 219.

Other authorities in this group include Stockport (209 days), Cheshire West and Chester (203 days), Norwich (195 days), and Cardiff (169 days). Even the 20th-slowest authority in the dataset — Sunderland and Chesterfield, both at 168 days — is running at nearly three times the statutory expectation for major applications.

This is not, in most cases, a story of wilful obstruction. Many planning departments are dealing with depleted officer numbers, complex community consultation requirements, and a growing volume of large-scale or technically demanding schemes. The NSD was supposed to help by reducing the number of applications that need committee time at all. Delaying it leaves authorities to keep managing the same overloaded system for longer.

The developers most exposed

The stakes are highest for housebuilders with large sites in the pipeline. REalyse data on schemes of 50 or more units currently awaiting a decision highlights the geographic concentration of risk.

Ashford in Kent stands out, with 15 large-scheme applications representing over 24,000 pending residential units — a figure that, for a single local authority, speaks to a significant strategic pipeline held in suspension. North Yorkshire has 39 applications totalling nearly 11,000 units; Wiltshire 48 applications covering over 10,000 units; and Buckinghamshire 45 applications for approximately 9,500 units.

For developers with capital committed to these sites — carrying land costs, professional fees and finance charges — every additional month without a decision is a real cost. Housebuilders operating across multiple sites and local authorities face compounded exposure when delays at even a subset of their portfolio coincide with rising build cost inflation and subdued transaction volumes.

The NSD delay matters most in this context. Larger schemes are precisely the type of application most likely to be called in by committee members, often for political rather than planning-merit reasons. A robust national scheme of delegation — clearly defining which applications can be decided by officers — would have offered developers greater confidence that their schemes would be processed on a predictable timetable. Without it, uncertainty remains the default.

What the data tells us about the wider picture

Beyond individual authorities, REalyse data points to a structural mismatch in the planning system that the NSD was intended — in part — to address.

Of the roughly 63,800 residential planning applications tracked over the past two years, the pending cohort accounts for over 61% of all residential units submitted for permission. Even assuming a reasonable approval rate for applications that eventually reach a decision (the data shows approximately a 2:1 approval-to-refusal ratio by application count for decided cases), the system is simply not converting applications into permissions at the pace required.

Labour's 1.5 million new homes target runs to 2029/30. With current delivery rates and a planning system that is measurably slower in many localities than the law intends, the margin for further slippage — whether through policy delays, resourcing shortfalls, or procedural uncertainty — is narrowing.

Outlook: a one-month pause with longer-term consequences

The government has been at pains to stress that the delay to the NSD is short-term and that the reform remains firmly on track. That may prove to be the case. But in a sector where forward planning, land acquisition and capital allocation are all premised on policy certainty, even a brief deviation from a published timetable sends a signal that the industry reads carefully.

For local planning authorities already stretched thin, the message is more prosaic: the status quo continues. Committee queues, officer capacity constraints and decision-time overruns will persist for longer than anticipated, adding friction to a system that urgently needs to run more smoothly.

For developers, the practical advice is to build additional time into programme assumptions, use available data tools to identify where local authority capacity and decision-time performance are strongest, and stress-test pipeline valuations against scenarios where permission timelines extend. REalyse's planning and development data — covering application volumes, decision times, unit counts and scheme status across every local authority in England and Wales — offers a granular starting point for that kind of risk assessment.

The NSD will come. The question is whether, when it does, the implementation will be robust enough to make a material difference to a pipeline that is already carrying the weight of too many homes still waiting for a decision.