Quick summary: Planning Permission London
If you’re researching Planning Permission London, the biggest “gotchas” are usually borough policies, neighbour impacts (daylight/overshadowing, privacy), and whether your property sits in a conservation area or is affected by Article 4 restrictions. The good news is that if you prepare the right drawings and address the common objections early, many householder applications in London can run smoothly.
- Typical council decision time: many householder applications are decided in around 8 weeks (longer if validation issues, amendments, or committee).
- London costs: professional drawing/agent fees are often higher than other regions because surveys, design iterations and policy constraints can be more demanding.
- Permission duration: in most cases, planning permission must be implemented within 3 years (there are exceptions—always check your decision notice).
- Best “approval tip”: show you’ve thought about neighbours—setbacks, obscure glazing where needed, sensible window positions, and clear dimensions on plans.
In the full guide below, we explain how the London process works, what councils look for, what affects cost and timescales, and how to improve your odds of approval first time.
Not sure if your project will get planning approval in London?
Share a quick outline (and a photo if you have one). We’ll sense-check your idea against common London borough issues and tell you what drawings and info will help most.
Quick summary: Planning Permission London
London planning decisions usually hinge on a few predictable themes: impact on neighbours (light and privacy), design in context (street scene, materials, proportions), and policy constraints (conservation areas, Article 4, local guidance for extensions and roof works).
If you prepare clear drawings, show you’ve considered the policies, and keep the design proportionate, your chances of a smooth approval increase dramatically.
Planning permission in London: what’s different?
Homeowners often tell us that London feels “harder” for planning than other parts of the UK. In reality, the rules are still the rules—but the context is different. Homes are closer together, extensions can affect more neighbours, and boroughs may apply stricter local design guidance.
In many parts of London you are also more likely to run into conservation areas, listed buildings, and Article 4 Directions. Those don’t automatically mean “no”, but they do mean your application needs to be carefully presented.
If you want the bigger picture (including permitted development, householder rules and common exemptions), our main guide explains the overall framework:Planning Permission (UK): The Complete Homeowner’s Guide.
Planning Permission London: costs (what to budget for)
When people search for “planning permission London cost”, they’re usually mixing together a few different things. In practice, there are three cost buckets to think about: the council fee, the drawings / design / agent costs, and any specialist reports if needed.
Quick costs snapshot – Planning Permission London
- Council planning application fee: paid directly to the local authority (varies by application type).
- Plans & drawings: often a bigger part of the spend in London, because accurate surveys and multiple revisions are common.
- Agent support: can save time if the case officer requests amendments or extra documents.
- Possible extras: heritage statements, tree info, daylight/sunlight assessments, or drainage notes on more sensitive sites.
The most helpful way to compare quotes is to ask what is included: site visit/measured survey, number of revisions, submission/agent role, and what happens if the council requests changes.
For a wider breakdown of typical UK budgets (and where hidden extras often sit), this guide is a useful companion read:our planning costs guide.
Planning Permission London: timescales (how long it really takes)
“How long does planning permission take in London?” is one of the most common questions we hear. While some applications move quickly, others stall because of validation issues, missing documents, neighbour objections, or the need for amendments.
What a typical timeline looks like
- Pre-application prep: survey + drawings + documents (often 1–4+ weeks depending on complexity).
- Validation: the council checks the submission is complete (this can be fast, or it can drag if anything is missing).
- Consultation: neighbours and consultees are notified.
- Assessment: case officer review, possible questions, potential amendments.
- Decision: approval, refusal, or approval with conditions.
For a fuller explanation of decision stages, statutory limits, and common delay points, see:our planning timelines guide.
How planning permission works in London (step-by-step)
The London process is broadly the same as elsewhere in England, but you’ll often benefit from a slightly more careful “pre-submit” stage. Here’s a homeowner-friendly step-by-step approach.
Step-by-step: how to apply for planning permission in London
- Confirm whether you need permission. Some works fall under permitted development, but London constraints (conservation areas, Article 4) can change the position. Use our checklist:Do I Need Planning Permission?
- Get a measured survey (or accurate base information). If the “existing” information is wrong, everything downstream becomes harder.
- Prepare clear drawings and the right documents. For most householder schemes, the council needs consistent plans/elevations and the correct location/site plans.
- Submit (and decide who will act as your agent). Having an agent can help respond quickly to case officer queries.
- Respond sensibly to questions or amendment requests. Many London approvals come through after small tweaks—rooflights, obscure glazing, setbacks, or window repositioning.
- Read the decision notice and conditions carefully. Some conditions require details to be approved before you start on site.
What you typically need for a London planning application
Requirements vary by borough and by proposal, but most London householder applications stand or fall on the quality and completeness of the drawings pack.If you want a dedicated drawings checklist, this guide covers the usual essentials:drawings for planning applications.
Common documents and drawings (householder projects)
- Location plan (Ordnance Survey based) and a site/block plan.
- Existing & proposed floor plans (clear, to scale, labelled).
- Existing & proposed elevations (especially important for anything visible externally).
- Sections where heights, roof forms, or level changes need explaining.
- Design & Access Statement (sometimes required, often helpful in sensitive areas).
If you also want to plan ahead for Building Regulations after planning, it’s worth understanding where Building Control fits in:Building Control: what it is and when you need it.
Approval tips that matter in London boroughs
London planners are usually trying to balance your extra space with the amenity of neighbours and the character of the area. The best applications make that balancing act easy.
1) Show you’ve protected neighbour light and privacy
- Keep side windows minimal where they face boundaries, and use obscure glazing where appropriate.
- Avoid oversized rear dormers that dominate the roofscape (especially in terraces).
- Consider setbacks, lower eaves, or roof forms that reduce overshadowing.
2) Match proportions and materials to the street
Even for extensions at the rear, a consistent look helps. Councils like proposals that read as “part of the house” rather than an add-on.
3) Be realistic about roof work and loft conversions
Many London loft schemes are doable, but they need the right massing, window positions and details. If your project includes the roof, this guide can help you sense-check the planning side:our loft conversion planning guide.
4) Don’t ignore conditions and “pre-commencement” requirements
London approvals often come with conditions. Some must be discharged (approved by the council) before works start—so they can affect your build programme if you leave them late.
Pitfalls & gotchas (that cause refusals or delays)
Here are the issues we see most often when London applications stall, get refused, or become far more stressful than they need to be.
Common reasons London applications struggle
- Missing or inconsistent drawings (dimensions don’t match across plans/elevations, or the site plan is wrong).
- Underestimating policy constraints (conservation area guidance, Article 4 restrictions, or tight design codes).
- Not addressing neighbour impacts early (privacy, overlooking, daylight/overshadowing).
- Submitting without a clear strategy (no supporting statement, no justification for key design choices).
- Trying to “push it” too far (overdevelopment is a frequent refusal theme in dense areas).
If you do receive a refusal, it isn’t always the end of the road. Options can include a revised submission or, in some cases, an appeal:Planning Permission Refusal: what it means and what to do next.
Want to reduce the chance of a London planning refusal?
We can review your idea, highlight the likely council objections, and advise what to change on the drawings before you submit.
Related comparisons London homeowners often Google
While you’re planning, you might also find these comparisons helpful (they come up a lot when people are trying to decide the “right route”).
- Planning permission vs permitted development (and when an LDC is sensible even if you think it’s PD).
- Planning drawings vs Building Regulations drawings (different purpose, different detail level).
- DIY plans vs professional drawings (risk, accuracy, and how councils validate submissions).
If you’re unsure about the drawings side specifically, this guide breaks down what’s included and why it matters:our planning drawings guide.
FAQs: Planning Permission London
How do I apply for planning permission in London?
You usually apply through the Planning Portal (or your borough’s online system) with the required drawings and supporting documents. The key is making sure the submission is “valid” (complete) from day one—otherwise validation delays can add weeks. If you want a simple drawings checklist for applications, see our guide onwhat drawings you typically need.
How long does planning permission take in London?
Many householder applications are targeted for a decision in around 8 weeks, but real-world timescales can stretch if the council requests amendments, if neighbours object, or if the application is invalid at submission. Good drawings and a clear statement can reduce back-and-forth.
How long does planning permission last in England?
In most cases, planning permission needs to be implemented within 3 years of the decision date. However, there can be exceptions and special conditions, so always check your decision notice and any conditions attached.
How long is planning permission valid in the UK?
For most homeowner planning permissions in England, the common implementation period is 3 years. Scotland, Wales and Northern Ireland can differ in process and terminology, and some schemes have bespoke conditions—so treat the decision notice as the final word for your approval.
Why does planning permission get refused in London?
The most common refusal themes are overdevelopment (too large for the plot), harm to neighbour amenity (loss of light or privacy), and design that doesn’t fit the area—particularly in conservation areas. If you ever receive a refusal, our guide onwhat to do nextexplains your options.
Can I buy land with planning permission in London?
Yes—plots and properties are sometimes sold with planning permission, but it’s vital to confirm exactly what has been approved, whether conditions are outstanding, and whether the permission is still live. We always recommend reading the decision notice, approved drawings list, and conditions carefully before committing.
How does planning permission work (in simple terms)?
Planning permission is the council’s decision on whether a proposed development is acceptable in principle, based on local and national policy. It’s different from Building Regulations (which focus on construction safety and compliance). For a plain-English overview of the whole system, see our mainplanning permission guide.
Want a quick “yes/no” view before you spend on drawings?
Send us your postcode and a short description. We’ll tell you the likely planning route and the most common London pitfalls to avoid.
Next steps & useful guides
If you’re continuing your research, these PME guides are the most helpful next reads for London homeowners:
- Planning Permission (UK): The Complete Homeowner’s Guide
- Planning Permission Timelines: key stages, limits & council rules
- Planning Permission Cost (UK): what to budget for
- Planning Permission Drawings: what you actually need
- Drawings for Planning Application: homeowner checklist
- Conservation Areas: what changes and what councils expect
- Building Control: what happens after planning
- Main “London difference”Borough-by-borough policies, tighter neighbour impacts, and more conservation/Article 4 constraints.
- Typical decision targetHouseholder applications are often aimed around 8 weeks, but can take longer with validation issues or amendments.
- How long permission lastsMost approvals must be implemented within 3 years (always check your decision notice/conditions).
- Biggest approval driversNeighbour amenity (light/privacy), design in context, and policy constraints (heritage, Article 4).
- Best practical tipSubmit a complete, consistent drawings pack to avoid validation delays and “reset” cycles.
- When to get helpIf your site is tight, visible from the street, or in a sensitive area, professional drawings/agent support usually pays for itself in time saved.
Want a quick confidence check before you submit? Contact Plans Made Easy and we’ll point you to the most likely route and the key risks to address.
Official guidance
For the latest national guidance and application info, these are the most reliable sources:
- Planning Portal – national planning guidance and application information
- GOV.UK – planning permission in England and Wales
How Plans Made Easy can help with your London application
London planning doesn’t have to be intimidating. Most “problem applications” are fixable—usually with clearer drawings, a better explanation of design choices, and small adjustments that protect neighbours while keeping your project practical.
Our team can prepare compliant plans, manage submissions, and help you respond to case officer questions without the process dragging on.If you’d like us to sense-check your idea, we’ll tell you what matters most for your borough and how to improve the chance of a first-time approval.
Ready to move your project forward?
Plans Made Easy can prepare compliant plans, manage submissions, and guide you from idea to approval.
Performance Verified ✅
This page meets PME Optimisation Standards — achieving 95+ Desktop and 85+ Mobile PageSpeed benchmarks. Verified on
