Plot Monitor tracks every UK new-build development from public listing data only — plot availability, price movement, withdrawals and £/sqft. Every figure carries a source URL and a timestamp, so you can show exactly where it came from. Free to use.
No credit card • No sales call • No transaction data held — ever
Tracking public listings from the UK's largest housebuilders
For decades, competitor pricing intelligence in this industry moved by phone call, WhatsApp group and site-visit chat. In February 2024 that practice stopped being normal and started being a case file.
On 26 February 2024, alongside its housebuilding market study, the Competition and Markets Authority opened an investigation into eight of the UK's largest housebuilders over the suspected exchange of commercially sensitive information — including pricing, incentives and sales rates — that is not publicly available.
In 2025 the CMA accepted a package of commitments from the builders, including a combined £100 million payment towards affordable housing programmes. The builders did not admit liability. The message to the industry was unambiguous: how you source competitor data is now your problem to evidence.
Source: Competition and Markets Authority — Housebuilders: suspected breaches of competition law. Plot Monitor is not affiliated with, endorsed by, or acting on behalf of the CMA. This summary is general information, not legal advice.
The principle is simple. If a member of the public can see it on a portal or a builder's own website, it is fair game. If they can't, Plot Monitor doesn't hold it. There is no back channel, because there is no back channel to audit.
Every stage is designed so that you can explain it to a regulator in one sentence.
We read new-build listings from major property portals and housebuilders' own websites — the same pages any buyer can open. No shared spreadsheets, no informal contacts, no non-public incentive or sales-rate feeds.
source: public listing pagesEvery plot, price and status change is written to an append-only log with the exact URL it came from and the moment we observed it. Change a price on Tuesday, and the record shows Tuesday — not "sometime this quarter".
source_url + observed_atExport any view to PDF or CSV with full source attribution attached. When Legal asks where a number came from, the answer is a link and a timestamp — not a conversation you have to reconstruct.
export → PDF / CSV + sourcesSee which plots came on, which moved price, and which quietly disappeared — with the week it happened.
Every major housebuilder, broken down by development, bedroom count and property type.
Old price, new price, £ and % delta, date observed. A full change log per plot, not a monthly average.
Normalise across house types and regions using published floor areas — compare like with like.
A scheduled PDF of what moved in your patch, with sources attached, in your inbox every Monday.
Drop in a postcode, pick 1–25 miles, and see every competing site in your actual catchment.
An append-only record of every observation — source URL, capture time, and what changed.
Ask plain-English questions of the dataset. Answers cite the underlying listings, every time.
This is the log, not a marketing diagram. Each row is a single observation of a public page: what we saw, the URL we saw it on, and the timestamp we saw it at. Nothing enters a chart without first entering this feed.
See exactly what the site down the road is asking for a 4-bed detached this week, how long their plots have sat, and which ones came off. Set your incentives against published fact instead of a half-remembered conversation.
"I stopped needing the phone-around to know where I sit."
Every figure your commercial team uses traces to a public URL and a capture time. When you're asked to demonstrate that competitor intelligence was lawfully sourced, you export the trail rather than interview the team.
"It turned an unanswerable question into a download."
Before you bid, see the real competitive density inside a 5-mile radius — how many plots are live, what they're asking per sqft, and how quickly listings are clearing at each nearby site.
"The radius search replaced two days of desk research."
A weekly regional picture you can put in front of a board without a caveat slide. Same numbers, same sources, every week — and a paper trail that holds up if anyone ever asks how you got them.
"I can defend every slide in the pack."
Plot Monitor is free while we build out coverage. No card, no trial countdown, no "book a demo to see pricing".
Full access to every region and every builder we track.
No credit card required. We will never hold or sell transaction data.
Publicly accessible new-build listing pages — major property portals and housebuilders' own websites. These are the same pages any prospective buyer can open without logging in. We record the URL and the observation timestamp for every data point, and those travel with the figure into every chart, table and export.
No. Plot Monitor holds no transaction data of any kind. We track asking prices and listing status only. When a plot disappears from a listing, we record it as a withdrawal — an inferred change in availability. It might be a reservation, a sale, a price re-plan, a data error at the portal, or a site pausing releases. We do not claim to know which, and the product never labels it as a sale.
Plot Monitor is built so that it only ever handles information that is already in the public domain, which is the distinction at the heart of the CMA's concerns about information exchange between competitors. That said, we're a data tool, not your advisor: how you use any market intelligence is a matter for your own legal and compliance teams. We give you the audit trail so that conversation is short and evidenced. Nothing here is legal advice.
We're expanding coverage and we want the dataset used and challenged while we do it. There's no card, no trial clock and no locked features. If we introduce paid tiers later, the free tier stays useful and we'll tell you well ahead of any change.
Listings are re-checked on a weekly cycle, with high-activity developments checked more
often. Every record carries its own last_checked
timestamp, so you're never guessing how fresh a figure is — the page tells you.
No. Your watchlist, searches and reports are private to your organisation. We don't publish who tracks whom, and we don't notify builders that they're being tracked. Equally, everything you can see about them, they could see about you — it's all public.
The figures as displayed, plus one row per underlying observation: the plot, the development, the source URL, the capture timestamp, and the value observed. A compliance officer can take the export and re-verify any number by opening the link — without needing access to your account.
Set up in under two minutes. Free, no credit card, no sales call.
Start tracking — free