Privacy

Last updated: 9 November 2026. This policy covers the Auction Comps Chrome extension and website.

Auction Comps is operated by Inteltree Ltd, 209 Hendon Way, NW2 1JJ, United Kingdom. For privacy enquiries, contact support@inteltree.co.uk.

Reading property pages

After you grant Chrome's website permission, version 0.3.2 and later automatically read the active page while the extension panel is visible, including when you switch tabs or navigate to another page. Earlier versions read only when you click “Read this page”. You can also explicitly refresh a page or save it as a comparable. The extension extracts property details such as the address, postcode, price, bedrooms, property type, tenure and page URL. It does not collect your browsing history or read inactive tabs. Page text is processed in your browser; we do not upload the full page to our server. Reading a page does not run a comparable search or use your search allowance.

What we keep

• Your name, email address and a hashed password, to run your account.
• Your subscription status. Card details are held by Stripe, never by us.
• For each comparison search: the postcode or district searched, the filters used and when. We use this to count your searches and to avoid charging you for repeats.
• PropertyData results for an area, kept for 7 days and shared between users so repeat searches are faster.

What stays in your browser

The lot details being viewed stay in the extension panel. Your search settings, saved comparables and imported CSV records are stored locally in Chrome. Saved records can include property addresses, prices, dates, notes and listing URLs. These records are not uploaded to Auction Comps. A sign-in session token is also stored locally so the extension can access your account; signing out removes it and requests the end of that session.

Search requests

Every comparison search requires sign-in. The extension sends your authentication token, the lot's postcode or district, property type, bedrooms, guide price and search filters to Auction Comps. Our server checks your allowance, looks up coordinates with postcodes.io and retrieves nearby sales from HM Land Registry. When you enable bedrooms, floor areas and asking prices, it also sends the property search parameters, without your account identity, to PropertyData. Search results are stored to avoid counting a retried request twice. Receipts older than 24 hours are cleared when subsequent search requests are processed. Saved comparables stay in your browser; their postcodes go directly to postcodes.io when coordinates are needed. External services receive standard connection information, including the requesting IP address.

Who we share it with

• Stripe, to take payments.
• Resend, to send account emails.
• PropertyData, which receives the postcode and filters of a search, not who you are.
• Vercel and Neon, which host the site and its database.

We don’t sell your data or use it for advertising.

Information read from websites is used only to provide the property-research features you request. We do not transfer it for advertising, creditworthiness or lending decisions. Hosting and account-service providers process the information needed to operate the service, including normal request and security logs.

Your choices

You can ask for a copy of your data or for your account to be deleted by support@inteltree.co.uk. Cancelling your subscription doesn’t delete your account.

You can remove individual saved comparables or use “Clear all” in the extension. Uninstalling the extension removes its local Chrome storage. You can revoke website access in Chrome's extension settings. We retain account and subscription records while needed to operate your account, resolve billing issues and meet record-keeping obligations. Cached search results are used for up to seven days; expired cache entries are deleted when new results are stored. Contact us to request access, correction or deletion of account data; some billing records may need to be retained.