Planning & Policy.

Planning is the single largest variable in UK land value. The same site can be worth a fraction of its potential or a multiple of its existing use value depending on policy position, plan status, and the quality of the case put forward. Understanding the framework is therefore not a technical afterthought, it is the starting point of any credible appraisal.

The framework in England sits on three layers: national policy expressed through the National Planning Policy Framework and supporting legislation, the local development plan adopted by each authority, and the material considerations weighed at the point of decision. The National Planning Policy Framework was comprehensively restructured and republished on 17 August 2026, retaining the standard method and grey belt approach introduced in December 2024.

Whether an authority can demonstrate an up to date plan and a deliverable supply of housing land is the question that most often decides an application on the edge of policy. Where supply is short or the plan is out of date, the presumption in favour of sustainable development carries greater weight and the balance of the decision shifts.

Reading an authority before you commit

• Date of plan adoption and the stage of any replacement plan, including whether it has reached examination
• Published housing land supply position and how robustly it is evidenced
• Recent appeal decisions, which show how inspectors are treating the authority's supply arguments
• Committee behaviour against officer recommendations over the previous twelve months
• Adopted affordable housing percentage and whether viability challenges have been accepted in practice

These indicators are public and inexpensive to gather. They frequently explain why two apparently similar sites in neighbouring districts carry very different planning risk, and therefore very different land values.

Policy on constrained land has become more granular. Rather than a single test applied uniformly, national policy now distinguishes between land that performs strongly against green belt purposes and lower performing land, often previously developed or poorly contained, where release can be considered where need cannot otherwise be met.

What promoters should evidence

• An objective assessment of how the land performs against green belt purposes, prepared before any promotion spend
• Sequential position relative to available brownfield capacity within the authority
• Sustainable location credentials, particularly access to services and public transport
• The public benefit package offered in return for release, including affordable housing and infrastructure
• Landscape and containment analysis showing the site can be developed without eroding wider openness

Brownfield first remains the policy starting point, and urban regeneration sites continue to enjoy the most supportive policy environment. The practical constraint on brownfield delivery is rarely policy support, it is abnormal cost, and that is a viability question rather than a planning one.

Obligations convert policy into cost. They are negotiated rather than fixed, and the difference between an early, evidenced position and a late, reactive one is frequently measured in hundreds of thousands of pounds on a mid sized scheme.

Typical obligations attached to consent

• Affordable housing, either as on site provision or as a commuted payment where policy allows
• Education, healthcare and open space contributions linked to the population the scheme generates
• Transport and highways works, from junction improvements to travel plans and active travel provision
• Biodiversity net gain, delivered on site, off site, or through statutory credits, subject to the current exemptions for the smallest sites
• Employment, training and local labour commitments during the construction phase

Biodiversity net gain in practice

Mandatory net gain has moved ecology from a late stage constraint to an early design input. From 6 August 2026, developments of 0.2 hectares or less that do not affect priority habitat are exempt, and minor development may use off site provision without first exhausting on site options. Off site units introduce a market cost that varies significantly by region, while statutory credits are deliberately priced above the off site market. Habitat baselines should be established before layout is fixed, since retrofitting gain into a consented density is materially more expensive.

The right consent route depends on capital position, holding capacity, and exit strategy rather than on which route is theoretically fastest. Landowners seeking a clean disposal and developers seeking a start on site are optimising for different outcomes.

Programmes vary widely by authority and scheme complexity. The stages most often underestimated are agreement of the Section 106 and discharge of pre commencement conditions, both of which sit after the headline decision and both of which delay funding drawdown.

Planning risk is priced through structure as much as through headline value. Conditional contracts, option agreements, promotion agreements and overage each allocate risk and reward differently, and the right structure depends on who is best placed to carry the planning process.

Risks that recur

• Allocation is not consent. An allocated site still needs a consentable scheme, a viable package of obligations, and a decision maker willing to grant.
• Statutory consultee positions on highways, drainage, heritage and ecology often shape density more than policy does.
• Ecology and nutrient constraints can add cost and programme even where mitigation is available.
• Section 106 and levy assumptions must be tested early, since obligations agreed late frequently reprice the land.
• Committee risk remains real on politically sensitive sites, regardless of officer recommendation.

A disciplined approach tests the scheme against the plan, prices the obligations before exchange, and builds a programme that reflects how the specific authority actually behaves. Where those three are done well, planning becomes a managed variable rather than a source of surprise.