Trusted by leading real estate investors, global operators and property advisers behind more than £300bn of real estate activity.
The whole UK
land market.
In one question.
ORTELIAS™ is the first AI-driven professional-grade tool for identifying on-market development opportunities.
Subscription based platform for development land buyers searching for their next site.
ORTELIAS searches the entire market in a way never possible before.
Describe what you are looking for in your own words.
Decades of experience built into our AI tells you which sites are worth your time, and why.
3,000+
UK estate agent websites monitored
Every region
of the UK, from day one
Brief in. Shortlist out.
Every result ranked and reasoned
Built by land specialists.
45+ years on both sides of the market
See it in action
Two minutes. The whole picture.
Watch how a single natural-language question returns ranked, reasoned development opportunities from across the entire UK market.
The problem
Every developer has a mental map of their market. Every map is incomplete.
Staying front of mind. Explaining your requirements again and again. Relying on the right agent to remember you at the right moment.
The problem cuts both ways. Every agent holds hundreds of briefs in their head, across years and sectors. Even the sharpest memory has its limits.
No portal aggregates the entire market, or even half the market. Opportunities are scattered across thousands of agent websites.
Portal coverage of on-market development opportunities
Source: ORTELIAS research, October 2025.
Fragmented. Repetitive. Time-consuming.
There is a better way.
The solution
We’ve turned the market on its head.
All other platforms wait for agents to feed them listings. We don't. The result is the most complete view of the UK's on-market development land inventory that exists.
THE LISTINGSEvery listing, straight from the source
Portals only carry the listings agents pay to advertise and agents pick and choose where, when and even 'if' they use them. That is why no portal has the full market. ORTELIAS monitors agent websites directly and presents listings from the source. That is what makes near-complete coverage possible.
THE AGENT RELATIONSHIPDirect buyer to agent relationship. Always
Every result carries the agent's details and link to the original listing on their website. Free to the agent. No listing fee. No commission. Buyers go direct to the agent. The transaction sits where it should: between the two parties who matter.
Why this works. The whole market in one place. Agents' work amplified.
Every source named. Every contribution honoured.
WELCOME TO ORTELIAS
The UK's development land intelligence platform.
BRIEF→SEARCH→TRIAGE→SHORTLIST
It builds your brief
A natural conversation captures location, use class, scale, planning status, budget, deal structure and anything else you need. Your brief can be amended at any time. Sharper inputs, sharper results.
It searches and enriches
3,000+ agent websites, results returned in seconds. Each carries an ORTELIAS description compiled from the agent's content and PDFs, enriched with distance to transport hubs, hospitals, demographics and more.
It triages every result
Every result carries a written assessment against your specific brief: planning posture, budget fit, deal structure. Where there's an angle worth pursuing that the listing doesn't advertise, ORTELIAS flags it as an upside.
Built by a team that understands the problem.
45+ years across the UK development market, plus 20 years of AI, technology and operations.
Who's it for
A specialist tool for property developers.
ORTELIAS is built for the people whose job it is to find the next development site. It combines a database of UK-wide listings, constantly updated, with a custom AI that's trained specifically for on-market development land discovery.
Who it's for
Housebuilders, commercial and mixed-use developers, land promoters, planning consultants, development surveyors, valuers, investors and anyone else with an interest in acquiring land or buildings for development.
What it covers
On-market opportunities: development land, redevelopment, change of use, conversion, and any site sold for its build potential.
What it doesn't do
Lettings, residential resale, and standing investments where there is no development play. We stay narrow on purpose.
Built for one job.
We surface your next development opportunity.
No noise. No detours.
Real briefs
One question.
The whole market answers.
Real briefs from real sectors. Each describes the kind of site search that used to take weeks of agent calls, portal scrolling and meetings. With ORTELIAS, the answer comes back in seconds.
NEW MARKET EXPLORATION
"We are considering moving into purpose-built student accommodation. Show me all available UK development opportunities within 10 minutes walk of a university, with or without planning to deliver 100+ units."
A sector you have never operated in. Results from the whole of the UK produced in seconds.
MOTIVATED SELLER SEARCH
"Show me residential development sites in the Midlands that have had price reductions, suitable for around 20 units, with or without planning consent."
Vendors who need to move quickly. Ortelias provides the insight.
DRIVE-THRU COFFEE OPERATOR
"Show me freehold and long leasehold roadside plots across the North West on arterial routes, suitable for a unit of around 1,500 square feet with dedicated parking for a drive-thru coffee operator."
The sites match this brief right now. The developer who finds them first, brings them to the table first.
CARE HOME DEVELOPER
"Show me sites for care home developments with main road frontage in towns with a population above 20,000 in the South East, with or without planning."
A precise brief. The entire South East market answering in seconds. The whole map in front of you.
ORTELIAS IN ACTION
From question to shortlist.
In seconds.
Walk through what ORTELIAS actually does.
- Ask in natural language
- See the brief it captures
- Scan the shortlist that comes back
- Click into a result and view: Site details, Listing summary, The upside, Key factors and Proximity.
NATURAL LANGUAGE
Ask in your own words. Be inventive, be playful — surface angles you couldn't find before.
REASONING
Ortelias explains every decision it makes as it builds your brief.
REFINE THROUGH CHAT
The conversation is the interface. No forms. No fields.
student property build (surprise me) within 3km of a university
Love it. A "surprise me" brief. Let me build you something sharp.
I'm going with Purpose-Built Student Accommodation (PBSA). It's the highest-yielding student property play right now, with strong institutional demand and a structural undersupply in most university cities. Here's what I've set up:
The concept: PBSA development sites within 3km of a university, anywhere in the UK.
What I've added and why:
- •Use class: Sui Generis. PBSA falls under Sui Generis in England. I've included C3 too since some schemes get consented as C3 cluster flats, and Scottish Class 9 for cross-border coverage.
- •University proximity: 3km hard filter, as you specified.
- •Supermarket and bus stop proximity as soft boosts. Students need convenience retail and public transport nearby.
- •No minimum site size. A 0.2-acre plot can deliver 200+ beds in a well-designed PBSA tower.
Your brief is ready. Hit the Search button to find matching sites.
37 strong matches found. 13 worth a look. Showing you the top result first.
The atlas is built.
The whole market is open.
The search for on-market development land just changed forever.
Not incrementally. Not gradually. Completely.
A fundamental change in what is possible.
Yours to navigate in any direction, at any speed, the moment an idea strikes.
FOR MORE INFORMATION BOOK A DISCOVERY CALL WITH BRUNO
Book a 20-minute discovery call.
20 minutes, no obligation. Pick a slot below and a Microsoft Teams link will be sent to your inbox.
Bruno Jaczkowski
Co-founder
23+ years on both sides of the London land market at JLL · Montagu Evans · BNP Paribas Real Estate · Cliveden Properties