Objector is the UK’s first purpose-built AI-powered platform that empowers individuals and communities with the tools and expertise to challenge property planning applications.Three advanced AI platforms analyse the planning application against local and national (NPPF, Aug 2026) policy and cross-check every finding for maximum accuracy.

Objector creates a complete planning objection toolkit by analysing planning documents to find valid objection grounds, backed by policy references, creating a planning objection letter, a councillor lobbying letter and video, along with a ready-to-present planning committee speech.

We level the playing field, making the objection process faster, smarter, and more effective - without paying thousands in consultancy fees.

Yes, and this is essential to creating an accurate planning objection.

The August 2026 NPPF replaced the old numbered paragraphs with named policy codes. General-purpose AI tools may still draw on older planning material, producing references that sound convincing but are out of date or wrongly applied.

Objector uses a built-in, source-checked library of the new NPPF provisions. AI helps examine the application and identify potential issues, while the platform checks proposed NPPF references against the 2026 codes, their official wording and the rules governing when they apply. That includes distinguishing policies for making plans from those relevant to deciding applications. Outdated, unsupported or inapplicable references are corrected or removed rather than presented as authoritative policy.

We currently analyse Householder, Full and Outline Planning Applications, with application documents up to 100MB.

We cannot currently help with Appeals or Reserved Matters.

You can upload the planning application documents to Objector and we’ll tell you - for free - how many objection grounds we find and if they are ranked high, medium or low in terms of potential impact. This is completely free and does not require a credit card.

With the free analysis, you won’t be able to see what the objection grounds are - to view the grounds, you need to proceed to pay and unlock the objection toolkit.

The toolkit costs £75 and contains:

• An objection grounds report

• An objection letter

• A lobbying letter

• A lobbying video

• A planning committee speech

• Access to our AI Policy Advisor

  All items are securely saved on your dashboard and can be emailed directly to your inbox.

  More toolkit info

  Pricing info

Objector uses a three-model AI system trained specifically on national planning policy (the Aug 2026 NPPF) and local development plans.

Each model independently analyses planning application documents, then the results are cross-checked for accuracy and consistency.

This layered approach helps identify valid objection grounds a single model might miss, while ensuring outputs are evidence-based and supported by relevant planning policy references/codes — so you can focus on the arguments that matter most.

Objector is purpose-built for planning objections. We don't just generate text - we deliver a complete objection workflow based on those issues that the applicant will most struggle to mitigate, through our impact ranking system - something general AI platforms will not do.

Crucially, single AI platforms can't replicate our multi-model analysis approach. We run three different AI systems simultaneously to catch objection grounds that a single AI might miss. This isn't possible with ChatGPT or similar platforms where you're limited to one AI model at a time.

Your documents are analysed, prioritised, and stored in one secure place. You generate an objection letter with detailed policy citations, councillor lobbying videos tailored to your case, and committee speeches crafted for planning meetings.

Most importantly, you don't need to master prompt engineering or spend hours formatting documents. We handle everything - from upload to ready-to-submit materials - saving you time, effort, and uncertainty.

All three AI systems independently rank each objection ground based on which grounds are the hardest to mitigate, and Objector provides the final ranking.

HIGH IMPACT indicates grounds that applicants will find extremely difficult to address (highway safety violations, inadequate parking, conservation area impacts, etc.)

MEDIUM IMPACT covers grounds that pose significant challenges that may be addressable (design quality issues, amenity impacts, etc.).

LOW IMPACT identifies grounds that present minor obstacles for the applicant (documentation gaps, minor environmental concerns etc.).

The ranking considers the planning application documents against relevant planning policies. This system helps you prioritise the most powerful objections first, to maximise your chances of successfully defeating the planning application.

Our free analysis checks all valid material objection grounds to identify potential policy issues. If no grounds are identified, this may indicate the application complies with planning policies. We tell you this for free, and recommend that you do not proceed to unlock the objection toolkit.

In cases where our analysis identifies only low-impact objection grounds, we may provide the complete analysis report and objection letter at no charge on request, to support residents who wish to participate in the planning process. See our Terms of Service for full details and email support@objector.ai to make your request.

No, they are powered by three AI models for maximum accuracy. Objector empowers individuals and communities with affordable tools to challenge property planning applications, without paying consultancy fees.  This service does not constitute professional planning advice, and we do not warrant the accuracy, completeness, or suitability of any AI-generated analysis.

Before relying on our outputs in formal objections or submissions, you should satisfy yourself—or seek advice from a qualified solicitor or planning professional—as to their accuracy and relevance.

Objector is a planning application analysis tool designed to help residents prepare objection materials. We created Objector to support those who wish to challenge planning applications but may not have access to traditional professional services.

Objector is not a registered legal or planning consultancy, and does not provide regulated advice. We do not offer legal or planning services, and our outputs should not be treated as formal guidance. Users should always consult a qualified professional where accuracy, compliance, or formal representation is required.