Ask Wren
Answers with the source shown.
Ask a planning question about a real site and get an answer drawn from the adopted local plan, the national framework and the decisions your council has already made, with the passage it read shown next to what it says.
- Questions with no account at all
- 3Questions with no account at all
- Credits when you sign up
- 25Credits when you sign up
- Credits per question after that
- 1Credits per question after that
- Authorities whose plans we hold
- 378Authorities whose plans we hold
Why it shows its working
An answer you cannot check is an opinion.
A language model asked about planning policy from memory will produce a fluent, confident, and frequently invented answer. That is worse than useless when the question is whether you can build something.
So Ask Wren does not answer from memory. It retrieves the passage first, answers only from what it retrieved, and shows you the passage. If it cannot find a source, it says it cannot find one rather than filling the gap.

What it is good at
Questions with a documented answer.
It is a research tool over a corpus, not an oracle. The questions it answers well are the ones a planning consultant would answer by looking something up.
- Policy
- What does my plan actually say
- The adopted local plan for your authority, quoted, with the policy number and the page it came from.
- Precedent
- What has this council decided before
- Applications determined nearby, with outcomes and the officer's stated reasons.
- Process
- Which route does this need
- Permitted development, prior approval, full application or certificate, and what each involves.
- Requirements
- What will they ask me for
- That authority's own validation list, which is where most refusals on procedure begin.
Asked and answered
What people want to know first.
Do I need an account?
Is it giving me legal advice?
What if it does not know?
Does it cover my council?
Ask it something about a real site.
3 questions, no account, no card. If the answer is not useful you have lost nothing.