How to Make a Planning Application in London in 2025: Householder Application, Process, and Tips

When planning permission is required for London home improvements, the types of planning application, and the documents required for a successful householder planning application in 2025: WHEN PLANNING PERMISSION IS NEEDED FOR A LONDON HOME IMPROVEMENT: Planning permission is not needed for every home improvement — see the permitted development guide for the full PD rights framework. PLANNING PERMISSION IS REQUIRED FOR: EXTENSIONS THAT EXCEED PERMITTED DEVELOPMENT SIZE LIMITS (see extension and loft conversion guides); ANY EXTENSION IN A CONSERVATION AREA that is excluded from permitted development (front extensions; side extensions; upper-floor rear extensions; extensions exceeding the PD size limits); LOFT CONVERSIONS that involve changes to the roof shape not covered by PD (hip-to-gable; new mansard; alterations in conservation areas); OUTBUILDINGS or GARDEN STRUCTURES that exceed Class E PD limits; CHANGE OF USE (converting a house to flats; changing a shop to a house; using a garden annexe as a separate dwelling); WORKS TO A LISTED BUILDING (both listed building consent AND planning permission are typically required — see listed building guide); ANY DEVELOPMENT IN A WORLD HERITAGE SITE, AONB, OR NATIONAL PARK that is excluded from PD; THE PLANNING USE CLASS OF THE PROPERTY: most London homes are in USE CLASS C3 (DWELLINGHOUSES); planning permission is required to change FROM C3 (e.g. converting a single dwelling to a house in multiple occupation — HMO — which is Class C4); TYPES OF PLANNING APPLICATION IN LONDON 2025: (1) HOUSEHOLDER PLANNING APPLICATION (HPA): the most common application type for home improvement works to an existing single DWELLINGHOUSE; covers EXTENSIONS, LOFT CONVERSIONS, OUTBUILDINGS, and ALTERATIONS that exceed PD rights; CANNOT be used for: change of use; works to flats (flats do not have PD rights and fall under a different application type); FULL PLANNING APPLICATION (PA1); (2) FULL PLANNING APPLICATION (PA1): for developments that are not covered by the householder application — including: new buildings; change of use; development on commercial land; works to flats; larger residential developments; (3) LISTED BUILDING CONSENT (LBC): for any works to a LISTED BUILDING that affect its character (see listed building guide); (4) PRIOR APPROVAL APPLICATION: for certain types of development that have pre-set design limits but require a formal notification and neighbourhood consultation (e.g. rear extension under the Prior Approval — Larger Home Extension — process for extensions of 3-6m (terraced) or 4-8m (detached)); (5) CERTIFICATE OF LAWFUL DEVELOPMENT (CLD): not a planning application per se — but a formal legal certificate from the LPA confirming that a proposed development IS permitted development, OR that an existing development was lawfully carried out; STRONGLY RECOMMENDED WHERE PD STATUS IS UNCERTAIN — provides legal certainty for both the homeowner and future buyers; LPA FEE: approximately £258; (6) PRE-APPLICATION ENQUIRY (PAE): a formal or informal request to the LPA for advice on a proposed development BEFORE submitting the formal application; many London boroughs offer a PRE-APPLICATION SERVICE (charged — typically £100-£500 for a residential enquiry); the pre-application advice (while not legally binding) gives the homeowner and their architect a good indication of whether the LPA is likely to support the scheme, and what concerns need to be addressed before submission; STRONGLY RECOMMENDED for more complex or sensitive applications (conservation area, listed building, large extensions); PLANNING APPLICATION DOCUMENTS FOR A HOUSEHOLDER APPLICATION IN LONDON 2025: (1) PLANNING APPLICATION FORM: completed online via the PLANNING PORTAL (www.planningportal.co.uk) — the national online planning application system; the form covers: applicant details; site address; description of development; existing and proposed land use; supporting information declarations; (2) APPLICATION FEE: HOUSEHOLDER APPLICATION FEE (CURRENT AS OF 2025 IN ENGLAND): approximately £258 (check the Planning Portal for current fee — fees were increased in December 2023 and may be revised further); (3) SITE PLAN (LOCATION PLAN): a plan (typically Ordnance Survey based, at scale 1:1,250 or 1:2,500) showing the site in relation to the surrounding area; the application site is edged in RED; any other land owned by the applicant is edged in BLUE; these are required for EVERY planning application; available from the Planning Portal (approximately £15-£30 per plan); (4) EXISTING AND PROPOSED DRAWINGS: SCALE DRAWINGS showing: existing site and floor plans (at 1:50 or 1:100 scale); proposed site and floor plans; existing and proposed elevations (showing all faces of the building affected); existing and proposed cross-sections; the drawings must be accurately dimensioned and at a recognised scale; an ARCHITECT or ARCHITECTURAL TECHNICIAN typically prepares these drawings (approximately £1,500-£5,000 for a householder application package); (5) DESIGN AND ACCESS STATEMENT (DAS): a written document explaining the DESIGN PRINCIPLES AND DESIGN APPROACH behind the proposed development; WHY THIS DESIGN? HOW DOES IT RELATE TO ITS CONTEXT (the character of the surrounding area and the existing building)? HOW WILL IT BE ACCESSED? WHEN IS A DAS REQUIRED FOR A HOUSEHOLDER APPLICATION? a DAS is required for some householder applications — particularly for applications in a DESIGNATED AREA (conservation area, AONB, World Heritage Site) or for a LISTED BUILDING application; NOT all householder applications require a DAS — the planning officer will confirm whether one is needed at the pre-application stage; (6) HERITAGE STATEMENT (FOR LISTED BUILDINGS OR CONSERVATION AREAS): a formal HERITAGE IMPACT ASSESSMENT required for listed building consent applications and for applications in conservation areas that may affect the character or setting of the designation; typically prepared by an ARCHITECT WITH HERITAGE EXPERTISE or a specialist HERITAGE CONSULTANT; (7) OTHER SUPPORTING INFORMATION (DEPENDS ON SITE-SPECIFIC ISSUES): TREE SURVEY AND ARBORICULTURAL IMPACT ASSESSMENT: if trees (protected by a TPO or in a conservation area) are affected; ECOLOGICAL SURVEY: if the development may affect protected species (bats, nesting birds) — common for loft conversions which can affect bat roosts; STRUCTURAL ENGINEER'S LETTER: for applications involving significant structural works; FLOOD RISK ASSESSMENT: for sites in a flood zone (check the Environment Agency flood map); PLANNING COMPLIANCE WITH LONDON-SPECIFIC POLICIES: London planning policy is a TWO-TIER SYSTEM: THE LONDON PLAN (published by the Mayor of London — the strategic spatial plan for London, covering housing targets, density, design quality, environmental standards); BOROUGH LOCAL PLAN (published by each London borough — the local development framework covering borough-specific design guidance, heritage, neighbourhood character, and development management policies); THE NATIONAL PLANNING POLICY FRAMEWORK (NPPF): the national policy framework (updated periodically — checked at gov.uk); PLANNING DECISIONS IN LONDON ARE MADE AGAINST THESE POLICIES — good design, conservation area character, neighbour amenity (particularly light, overlooking, and overbearing impact) are the key assessment criteria for householder applications.

The planning consultation process for London householder applications, how the LPA makes its decision, planning conditions, and what to do if your planning application is refused in 2025: THE PLANNING CONSULTATION AND DECISION PROCESS FOR A LONDON HOUSEHOLDER APPLICATION: (1) SUBMISSION: the planning application is submitted online via the Planning Portal; the LPA validates the application (checks all required documents are present and fees are paid) — validation typically takes 2-5 business days; (2) NEIGHBOUR NOTIFICATION AND PUBLIC CONSULTATION: once validated, the LPA sends NEIGHBOUR NOTIFICATION LETTERS to adjacent properties (typically the immediately adjoining properties, and properties that face or overlook the application site); neighbours are given a STATUTORY CONSULTATION PERIOD of 21 DAYS to submit representations (support or objection); the application is also listed on the LPA'S PLANNING WEBSITE (the public planning register — accessible to anyone) with all submitted documents visible; THIRD PARTY REPRESENTATIONS: any member of the public can submit a representation during the consultation period; MATERIAL PLANNING CONSIDERATIONS: only MATERIAL PLANNING CONSIDERATIONS can be taken into account in the planning decision — planning objections based on: property values; private disputes between neighbours; commercial competition; the applicant's personal circumstances; CANNOT be material considerations; MATERIAL CONSIDERATIONS THAT CAN BE RELEVANT TO A HOUSEHOLDER APPLICATION: design, appearance, and character of the building and area; impact on the Conservation Area (if applicable); impact on a Listed Building or its setting (if applicable); neighbour amenity: loss of daylight/sunlight (BRE daylight/sunlight assessment guide); overlooking and loss of privacy; overbearing impact (visual dominance of the proposed development); highway impacts (parking, access, traffic); tree impacts (if TPO trees are affected); ecology impacts (if protected species are affected); (3) PLANNING OFFICER ASSESSMENT: the case PLANNING OFFICER assesses the application against planning policy; may carry out a SITE VISIT to assess the development in context; prepares a PLANNING OFFICER'S REPORT with a recommendation (APPROVE or REFUSE); (4) DECISION: DELEGATED DECISION: the majority of householder planning applications in London are decided by the PLANNING OFFICER UNDER DELEGATED POWERS (without going to a planning committee) — this is the normal route where the application is not controversial; PLANNING COMMITTEE DECISION: applications may be referred to the PLANNING COMMITTEE (a committee of elected councillors) where: the application is CALLED IN by a ward councillor; the application is SIGNIFICANTLY CONTROVERSIAL (a large number of objections, or a significant planning policy conflict); the application involves a CONFLICT OF INTEREST for the LPA; committee decisions are made at a PUBLIC MEETING where the applicant (or their architect) may speak; STATUTORY DECISION TIMESCALES: HOUSEHOLDER APPLICATION: the statutory target for a DECISION is 8 WEEKS from the date of VALIDATION; many London boroughs EXCEED THIS TARGET — in some cases, a decision may take 10-16 weeks; the applicant can AGREE AN EXTENSION OF TIME with the LPA (in writing) if additional information is needed or negotiations are ongoing; (5) THE PLANNING DECISION: GRANT (with conditions) or REFUSE; A GRANT OF PLANNING PERMISSION: planning permission is GRANTED WITH CONDITIONS — conditions typically include: commencement within 3 years (the development must be started within 3 years of the grant of PP — otherwise it expires); APPROVED PLANS (the development must be carried out in accordance with the approved drawings — any changes require a NEW APPLICATION or a NON-MATERIAL AMENDMENT application); MATERIAL SAMPLES (the materials of construction — brick, render, window frames — must be approved by the LPA before they are used); PRE-COMMENCEMENT CONDITIONS (some conditions must be satisfied before works start — e.g. a drainage scheme must be approved before excavation begins); PLANNING CONDITIONS COMPLIANCE: the homeowner must ensure that all conditions are complied with before and during the works, and that any pre-commencement conditions are discharged (a formal DISCHARGE OF PLANNING CONDITIONS application is needed — fee: approximately £43 per request in England); A REFUSAL OF PLANNING PERMISSION: the LPA issues a DECISION NOTICE detailing the REASONS FOR REFUSAL — these are the planning policy grounds on which the application failed; OPTIONS AFTER REFUSAL: (A) REVISE THE SCHEME AND RESUBMIT: within 12 months of refusal, a revised application can be submitted FREE OF CHARGE in England (one free resubmission within 12 months for householder applications — check current policy); the revised scheme should address the specific reasons for refusal identified in the decision notice; (B) PLANNING APPEAL: the applicant can APPEAL to the Planning Inspectorate (PINS) against the LPA's decision to refuse; HOUSEHOLDER APPEAL (CLASS A APPEAL): decided by a PLANNING INSPECTOR on the basis of: the application documents; the inspector's site visit; written representations from the applicant, the LPA, and any third parties; the householder appeal process is typically WRITTEN REPRESENTATIONS only (no hearing or inquiry); TIMESCALE: typically 12-18 weeks for a householder appeal decision; COST: no fee for a householder planning appeal; GROUNDS FOR APPEAL: the inspector considers whether the LPA's reasons for refusal are justified by planning policy — if the inspector finds they are NOT, the appeal is ALLOWED and planning permission is granted; APPEAL SUCCESS RATES: householder planning appeals have a SUCCESS RATE of approximately 30-35% nationally (based on PINS statistics); PRE-APPLICATION ADVICE: the most effective way to maximise the chance of approval on first submission is to use the LPA's PRE-APPLICATION SERVICE before submitting — this allows the scheme to be refined in response to the planning officer's feedback before the formal application and the clock starts; PLANNING CONSULTANT: for more complex applications (conservation area, listed building, large extension), engaging a PLANNING CONSULTANT (in addition to the architect) may increase the chances of approval — planning consultants understand local planning policy and can manage the consultation process; LAWFUL DEVELOPMENT CERTIFICATE: if the proposed works genuinely fall within permitted development but the homeowner wants legal certainty, a CERTIFICATE OF LAWFUL DEVELOPMENT (CLD) provides that certainty without the need for a full planning application.