Unsold land at auction: how we find it with Estately

Why land that fails to sell at auction

A lot that goes unsold at auction tells you four things at once. The seller wanted to sell and set a date. The guide and the reserve are known, so the price conversation starts from a number rather than a hope. The legal pack is already written, so the title, the rights of way and the covenants can be read before a call is made. The auction house is still instructed for a few weeks and will carry a private offer to the seller. Estately calls that the four to eight week private offer window and it is the window we work in.

For a land buyer the stock is small and the prize is large. Most auction lots are houses and flats. A few in most catalogues are a paddock, a yard, a garden plot, a field with a lapsed permission or a site with a refusal. Those are the ones we want and nobody wants to read every catalogue by hand to find them.

The problem we were solving

The Land Buyer runs its candidate sites in Bath, Bristol and Monmouthshire with a very small team. Every site goes through the same early checks: the title, the planning history within a hundred metres, the flood map, the trees, the listed buildings, the access. The checks are mostly a machine's work. Finding the next site is the part that used to take the evenings.

Auction catalogues are the one source where sellers declare themselves. The trouble is volume and timing. Each auction house publishes its catalogue on its own site, lots close at all hours and an unsold lot is only interesting for a few weeks. We needed a watcher that read the catalogues, knew when a lot had closed unsold and handed us the lot the same day, in a form our own pipeline could take without anyone retyping it.

The set up, in four parts

1. A free Estately account. Every account has API access included, with a key minted from the account page. There was no application and no wait.
2. A Playbook for land. A Playbook is a saved set of criteria that Estately checks each lot it tracks against. Ours is filtered to land, with the planning status filter set to the lots whose listing states no planning status at all as well as those with a lapsed or refused permission, because a refusal is a list of reasons and many reasons can be answered. The trigger we rely on is unsold at close, which fires soon after Estately observes the unsold result, within seven days of the auction ending. New match is off, so the board only sees lots that have already failed to sell.
3. A webhook into our own pipeline. Estately's Playbooks deliver by email, WhatsApp or webhook, all free. We chose the webhook: a signed POST to our pipeline board for each matching lot, to the webhook spec. The board checks the signature, writes the lot as a card and tells the desk that reads new land. Nothing is retyped.
4. The Estately connector in Claude. For the questions a card cannot answer we open the lot inside Claude through Estately's MCP connector for Claude: the full lot record, its sold comparables, its legal pack reading. The set up is paste one URL, then click Authorise in the browser.

Setting up the Playbook took an afternoon, most of it deciding what we did not want. The webhook took a morning. A test delivery with a real lot proved the channel on 17 October 2026, before the first live alert. The lot was outside our areas and sat in Flood Zone 3. The board said so and the lot was parked in under a minute, which is the point: the time goes on the sites that might work, not on reading the ones that cannot.

What a card carries

Each card on the board holds what a land buyer needs to decide whether to spend ten minutes or none: the lot's picture, the auction house's description, the guide, the acreage, the planning status as the listing states it, the end date and a link to the lot on Estately. The webhook carries the essentials and the board fetches the planning status and the acreage once, with our own key, from the lot endpoint. The planning status is the listing's word rather than a verified fact, so the card says so and the first thing the desk does is read the council's register.

A card never becomes a site file on its own. A person reads it, decides and only then does the site get a folder, the checks and a place in the pipeline. The board was built to take the reading off us, not the deciding.

Estately inside Claude

The connector is where the second half of the value sits. With it a plain English question becomes a tool call against live auction data. The questions we ask most:

• Show me the land lots in the BA postcode area with no planning permission stated or with a lapsed or refused one.
• Tell me everything Estately holds on this lot and whether a legal pack has been read.
• Which lots in my portfolio are marked unsold?
• Pull the sold comparables for this lot's postcode.

The reasoning happens in Claude. The facts come from Estately and we treat every answer as a starting point for our own checks, never as a valuation.

What it does not do

• It does not find owners. Estately reads auction catalogues, which are public. Our direct approaches to landowners run on a separate process with its own data protection rules and nothing from Estately is used for them.
• It does not write to anyone. No letter, no email and no offer leaves the board on its own. Every outward step is a person's.
• It does not value land. The guide and the listing facts are what the auction house published, as Estately reads them. Land lots carry no Estately Score and no modelled figures, by design. Our own appraisal starts after the card and follows the stages on how we work.
• It does not replace the legal pack. Estately's legal pack reading is an automated reading and a solicitor reads the pack before any bid.

Doing it yourself

Any land buyer can copy the set up in an afternoon and none of it costs anything for your own investing.

1. Open a free Estately account. The API is free for your own investing.
2. Build a Playbook, from blank or from one of Estately's land templates: set the property type to land, not any, then the planning statuses you want, your regions or postcode list and a guide band if you have one. Turn on the unsold at close trigger. Start with email or WhatsApp if you have no system to post to.
3. If you run your own pipeline, add the webhook and verify the signature on every call, as the webhook spec sets out.
4. Connect Claude, ChatGPT or another MCP client through the Estately API and ask it about the lots you are watching. Developers who want the raw endpoints have the API reference.

Then do the part no system does: telephone the auction house inside the window, read the pack and go and stand on the land. Estately's own guide to buying land at auction covers the auction side.

About the two companies

The Land Buyer is a trading name of Hafan Homes Ltd, a family company that buys land and pays for the planning. Estately is a UK property auction intelligence platform built by Ether Corporation. The two share a founder, which is how The Land Buyer came to use Estately for land before most land buyers had heard of it and why this page exists. The Land Buyer uses Estately on the same free terms as any other investor and Estately has no part in our land deals. Estately tells the same story from its side in its own case study.