The planning system is stuck behind a knowledge barrier. Our new Planning Appeal Intelligence tool, PAI, helps small-scale practitioners understand their planning prospects.
The Challenge
Navigating the UK planning system has often felt like a "dark art," and recent policy shifts have made the stakes even higher. For small-scale projects and ambitious homeowners, the barrier to entry is steep. Professional consultancy fees can exceed 15% of total project costs, leaving many to navigate complex policies alone without access to reliable data or insights.
Under the April 2026 "Submit Once" reforms, the margin for error has effectively disappeared. With the window for new evidence now largely closed at the appeal stage, an initial refusal is no longer just a setback - it is often a project “dead end”. With national appeal success rates hovering at just 33%, there is an urgent need to take the risk out of projects by establishing a solid technical foundation before the first submission.
Introducing PAI
The limitations of existing planning tools are two-fold: accessibility and accuracy. Existing databases rely on “lexical” keyword searches that fail to capture the nuance of planning policy. This makes locating relevant precedents a laborious process, forcing users to sift through mountains of irrelevant data while the critical insight remains buried.
Furthermore, while general AI models (LLMs) are becoming more common, they lack the precision required for planning. Because they are trained on broad, unverified data, they are prone to “hallucinations”, pulling in irrelevant data to satisfy a query. In a professional context where accuracy is non-negotiable, this is a liability no project can afford.
Developed in collaboration with David Sinclair, PAI offers a more rigorous alternative. Unlike general-purpose AI, PAI is built exclusively on a database of live planning appeal decision history. The result is a high-fidelity, up-to-date resource designed to deliver authoritative results quickly and accurately.
What It Does
Find appeals faster
Current government databases rely on keywords. If you search for "overlooking", you miss cases that use alternative terms such as "loss of privacy" or "inter-visibility". PAI understands the technical intent of the inspector’s logic, finding the right cases regardless of the specific vocabulary used. This improves efficiency by reducing time spent reviewing search results.
Gain planning insight
PAI gathers information from both approved and dismissed appeal reports to build evidence-based responses. It maintains a clear audit trail of references so you can monitor the data behind every answer.
Draft planning statements
PAI uses its database to assist in drafting planning statements, referencing identified planning risks against a policy to help you construct a robust argument for your proposal.
Reliability
Ensuring Reliability
Studio Bark have been working on projects with complex planning challenges for over a decade. We understand how vital it is to work with reliable, relevant data. Our goal for PAI was to move beyond case-finding and create a tool with the intelligence to focus on the technical logic that actually wins cases.
PAI is trained on a controlled input of data sourced exclusively from live planning appeal decision history. This allows it to identify the exact logic used by Inspectors to rule on cases. Unlike existing planning tools, it doesn’t just return search results; it provides reliable answers to complex planning queries based on real-world outcomes.
Benefits
For architectural SMEs and planning consultants, PAI transforms the research process from hours of manual PDF screening into seconds of targeted retrieval.
- Professional Confidence: Satisfy professional liability requirements and submit applications with confidence using direct citations to real PINS cases.
- Increased Productivity: Access high-level planning intelligence on any budget, allowing you to integrate policy nuance into projects from the outset.
- De-Risk Applications: Identify the exact logic used to overcome past constraints to create more compelling applications.
Join The Beta
We spent the first half of 2026 refining PAI for use on live projects, and we will shortly be launching our first beta trial. The outcomes from this trail will help us develop the tool further and increase its usability for the wider profession.
Join the first beta testing phase by filling in this Google form.
R&D at Studio Bark
Developing PAI is part of our wider commitment to research-led practice. We don’t just design buildings; we build the tools our industry needs to navigate change. Our other ongoing innovations include:
- U-Build: Our modular timber building system, designed to allow anyone to take part in construction without needing specialist tools or knowledge. Since 2019, U-Build has been used for hundreds of projects, from garden studios, to circular office fit-outs, and entire homes.
- SmallCarbon: Our carbon counting tool designed for SME architecture practices. Following successful beta testing in 2025, and generous support from our sponsors, we are continuing to refine the tool for a full launch in late 2026.
By creating these solutions, we aim to make our industry more democratic and accessible, empowering our peers to amplify our collective impacts.
Our R&D Projects
The modular timber building system designed for simplicity and circularity, from self-build studios to commercial fit-outs.
Our carbon counting tool, SmallCarbon, helps architects measure and report the whole life carbon impact of your projects.
