London planning applications: how the system works

London planning applications sit at the point where national planning law, the London Plan, borough policies and local evidence meet. For residents, applicants, campaigners and researchers, the hard part is rarely finding a proposal. It is working out which documents matter, who has power to decide, and whether a consultation comment is likely to carry planning weight.

This page explains the basic route most applications take in London. It focuses on durable reference points rather than a single scheme: borough portals, officer reports, committee papers, Mayor of London referrals, planning obligations and appeal routes.

London planning applications in brief

Most planning applications in London are handled first by the local planning authority. In practice, that usually means one of the 32 London boroughs or the City of London Corporation. Each authority runs its own planning register, validates applications, consults neighbours and statutory bodies, assesses the proposal against policy, and issues the decision unless another body becomes involved.

The policy framework is layered. National planning policy and legislation apply across England. The London Plan, published by the Mayor of London, sets strategic policy for the capital. Borough local plans add more detailed local policies on land use, design, housing, heritage, town centres, employment land and infrastructure.

Some larger or strategically important applications must be referred to the Mayor of London. The Greater London Authority explains this process through its planning applications and decisions pages. Referral does not mean automatic approval or refusal. It means the Mayor has a formal role at defined stages, including the power in some cases to allow the borough to decide, direct refusal, or take over the application.

Who does what

The documents that matter most

A planning register can contain dozens or hundreds of files. Start with the application form and location plan to confirm the site, applicant, ownership certificates and proposed development description. Then open the proposed drawings and compare them with existing plans. Elevations, sections and floor plans often reveal more than the written summary.

For larger schemes, the planning statement explains how the applicant says the proposal complies with policy. A design and access statement may describe the design approach, layout, materials, inclusive access and consultation. Transport assessments, daylight and sunlight reports, heritage statements, flood risk assessments, energy statements and environmental reports should be read alongside the policy tests they claim to satisfy.

The officer report is the key public decision document. It usually summarises consultation responses, identifies relevant policies, weighs benefits and harms, and recommends approval or refusal. If a case goes to committee, the report is the best starting point for understanding the professional planning judgement being put before elected members.

How consultation comments are weighed

Planning consultation is not a referendum. A high number of objections can signal strong local concern, but the decision must still turn on material planning considerations. These can include design, land use, housing mix, affordable housing, heritage impact, transport, trees, daylight and sunlight, overlooking, noise, air quality, flood risk and compliance with adopted policy.

Issues such as construction inconvenience, loss of private view, impact on property values or commercial competition are often not decisive planning grounds in themselves. They may still point towards relevant planning issues — for example, a complaint about “too much traffic” may be strongest when tied to junction capacity, bus priority, pedestrian safety, servicing or cycle access.

Consultation periods vary by application type and local procedure. Many neighbour consultations use a 21-day period, but readers should check the date shown on the relevant borough planning register rather than assuming a standard deadline.

When the Mayor becomes involved

The Mayor of London is involved in applications that meet referral thresholds set out in planning legislation and mayoral procedures. These often include schemes of strategic scale, such as major housing or commercial development, tall buildings in certain circumstances, developments affecting metropolitan open land, or proposals with wider transport and infrastructure implications.

The GLA’s Stage 1 report normally sets out whether the proposal complies with the London Plan and what changes or further information may be needed. After the borough resolves to approve or refuse, the case may return to the Mayor at Stage 2. At that point, the Mayor may allow the borough’s decision to stand, direct refusal in defined circumstances, or take over the application for mayoral determination.

For researchers, the GLA report is useful because it often highlights strategic issues that are not obvious from local objections alone: affordable housing delivery, industrial land policy, carbon performance, transport capacity, fire safety policy, urban greening and design quality.

Decision notices, conditions and obligations

An approval is not the same as an unrestricted permission. The decision notice sets out conditions, approved drawings and reasons. Conditions may require further details before work starts, such as materials, landscaping, drainage, construction management or contamination remediation. Some conditions must be discharged formally by the planning authority.

Larger permissions may also rely on a Section 106 agreement. This legal agreement can secure affordable housing, public realm works, transport contributions, local employment measures, carbon offset payments or restrictions on use. Community Infrastructure Levy may also apply, including both mayoral and borough charges depending on the development.

When reading a consented scheme, check the decision notice, the final approved drawings and the signed obligation. Committee debate alone is not enough: the enforceable position is in the permission and legal documents.

Appeals and what they can change

If an application is refused, or not decided within the statutory period, the applicant may have a right of appeal to the Planning Inspectorate. Appeals are normally decided by written representations, hearings or inquiries, depending on complexity. The inspector considers the planning merits again and may dismiss the appeal or grant permission, sometimes with conditions.

Residents and local groups usually cannot appeal simply because they disagree with an approval, although legal challenge may be possible on points of law within strict deadlines. That is different from re-arguing the planning balance. Anyone considering legal action should take specialist advice quickly.

Reliable places to check

Use the borough planning register as the primary record for a live application. For strategic cases, check the GLA planning applications and decisions pages. For the policy background, use the London Plan and the relevant borough local plan. The Planning Portal is a useful official starting point for application types and national process, while the government’s planning data platform is developing standardised access to planning and land-use datasets.

Before relying on any summary, check whether the application has been amended, whether new drawings have replaced old ones, whether a committee addendum was issued, and whether the final decision notice differs from the officer recommendation. Planning files change over time, and the latest approved document is usually the one that counts.