Find out which candidate sites someone has already started on.
A dated flag for every site on your watch list: fencing, clearing or construction since the last quarterly satellite pass. Check it before the bid committee, not after.
- GSD
- VHR / ≤0.5 m
- Cadence
- Quarterly
- Platform
- High-res satellite
- Spectral
- RGB
Previous passNo change
This passChanged
The week before the bid committee
The site came through the grid and constraint screen well. The land agent has been in touch with the owner, the heads of terms for an option are half drafted, and the committee meets on Thursday to release money for a proposal. Before it goes in, someone asks the question nobody wants to get wrong: is anyone else on that land?
So the check starts. A call to the agent, who has heard nothing. A message to a contact who lives nearby. If the site is within reach, somebody drives past on the way to something else and looks over the hedge. Failing that, you open a web map and get a photograph of unknown date, which could be last spring or four years ago.
It mostly works. When it doesn't, you find out late: the owner mentions, politely, that another developer has already been round, or a surveyor's compound is sitting in the field when the site visit finally happens. The proposal cycle is gone by then, along with the desk study you paid for.
A quarterly satellite pass over the watch list gives that check a date and a record. You still make the calls. You just make them knowing which sites have changed on the ground since the last look.
What a flag tells you
The offer is early access, so formats and wording are shaped with the first teams on the list.
2.1Per site
Dated change flag per site
Each site on the watch list carries the date of the satellite pass it was checked against and a plain flag: changed since the previous pass, or not. This is the line you read out at the pipeline review.
2.2Fenced, cleared or under construction
Activity status
Where a site has changed, the flag says what the change looks like: a new or altered perimeter line, ground cleared or graded, a track or compound, or works that read as construction. It describes what is visible on the ground. It does not say who is doing it or why.
2.3Per site, over time
Quarter-by-quarter change log
Each quarter's flag is kept against the one before, so you can see when a site first changed rather than only that it has. A site that was quiet for three passes and then cleared shows up with the quarter it happened in.
2.4Whole pipeline
Watch-list view
All the sites you gave us, with their latest flag, in one list you can drop into the site register or put in front of the committee.
How it works
Send the watch list
The candidate sites you are weighing, as boundaries or points with your own site IDs. Add or remove sites as the pipeline moves.
Quarterly pass
For each site, the latest clear high-resolution satellite capture is picked up. If cloud covers a site, it is retried within the quarter.
Compare with last time
Each site is checked against its previous pass for fencing, clearing, groundworks and construction.
Flags come back dated
You get the watch-list view with a flag and an acquisition date on every site, and the log of earlier quarters behind it. First-time sites are compared with the best earlier image we can find.
Where it fits
Before a proposal goes to committee. Run the watch list in the weeks before the bid committee so a site that has visibly started to change is picked up before money is released for a proposal on it.
Alongside your land agents. A flag is a reason to ask the agent or the owner a sharper question. Land agents, local contacts and the site visit stay exactly where they were.
Limits
These are what a quarterly satellite pass can and cannot tell you. Each is repeated in the flag where it applies.
L1
A quarter is the clock
The check is a target cadence, not an alert. Something done and finished between two passes can be noticed a quarter late, and nothing is reported between passes.
L2
Seeing the works, not the party
A flag says that the ground looks different. It cannot say which developer, landowner, farmer or contractor made the change, and a cleared strip can just as easily be forestry, drainage or farming.
L3
Not a title check
This is a physical-activity flag from imagery. It says nothing about who holds an option, a lease or the freehold. Land Registry, the agent and the owner answer that.
L4
About half a metre is the floor
At a ground sample distance of 0.5 m or finer, a vehicle track is several pixels wide and a site compound is easy to see. A fence is not: wire and posts are far narrower than a pixel. A new perimeter shows as a cleared or mown strip, a changed edge or a line of shadow, and a plain stock fence in grass can go unnoticed. Survey pegs and stakes are far too small to see and are never reported.
L5
Cloud can delay a check
Optical imagery needs a clear pass. A cloudy quarter may leave a site unchecked, and the flag says so rather than reporting no change.
L6
The first look has no baseline
A new site is compared with the best earlier clear image available. Where there is none, the first pass is the baseline and a change shows from the next quarter.
Who it's for
For
- Business development and origination leads at renewables developers who release bid money against candidate sites.
- Land and development managers keeping a site register who want a dated record of what changed on each site.
Not for
- Teams that want to know which competitor holds an option on a site. This reports visible activity only.
- Legal title, option or lease checks. Those belong with solicitors and the registry.
- Live or weekly monitoring of a site. The cadence is quarterly.
- Teams looking for a screening layer of where to build next. This watches sites you have already chosen.
Questions before you join the list
How fast is a change flagged?
At the next quarterly pass. Nothing is reported between passes, so treat it as a regular check, not an alert.
Can you tell us who fenced it?
No. The flag shows that something changed, never which party did it.
Does this confirm who owns the land or holds an option?
No. It is not a title or registry check. It shows physical activity from imagery.
Will it see survey pegs or a plain stock fence?
Not reliably. Pegs are too small, and a thin fence may only show through a cleared strip or its shadow. The page describes what is visible, and the flag says when a change is uncertain.
Does cloud cover delay a check?
Yes. A clear pass is needed, and a cloudy quarter can leave a site unchecked. The flag marks it as unchecked.
How many sites can go on the watch list?
As many as are on the pipeline you give us. The list is scoped with you when you join.
Can we check the flags against our own site visits?
Yes. Every flag carries its image date, so you can set it against a site visit or an agent's report from the same period. Tell us where your ground truth is when the list is set up.
How is it priced and contracted?
It is early access, so terms are agreed with each team and quoted in writing. Use and ownership of what we deliver are set in the contract.
Put your pipeline on watch.
Tell us how many sites you are weighing and where.
Request early access