Pricing that grows with the decision
Three levels of professional capability, each answering a bigger question about the site and including everything before it. Start with a free 7-day Feasibility trial. No card details needed.
Founding members
35% off your first year for our first 50 subscribers. Use the code FOUNDING35 at checkout, until 30 June 2027.
Free trial for 7 days
Feasibility
Should we pursue this site?
Screen sites quickly, before spending money on surveys and consultants.
£1,250 a year£125 a month
Two months free. Or £125 a month.Cancel at any time. Or £1,250 a year, two months free.
Start free 7-day trialNo card details needed
Most popular
Outline
What could we get permission for, and what is the land worth?
Capacity, mix, policy, Section 106 and CIL, a full appraisal and the land deal, for promoting or negotiating a scheme.
£2,950 a year£295 a month
Two months free. Or £295 a month.Cancel at any time. Or £2,950 a year, two months free.
Choose OutlineMonthly plans cancel at any time
From layout to plot pricing
Detailed Design
What will the scheme cost, and what will it return?
Costs measured from the layout, cashflow, return and peak debt, plot pricing and open space management.
£5,950 a year£595 a month
Two months free. Or £595 a month.Cancel at any time. Or £5,950 a year, two months free.
Choose Detailed DesignMonthly plans cancel at any time
Just one site?
Single-site pass: £195. Outline for one site for 30 days, with its reports. No subscription. Ideal for a landowner weighing up an offer.
Prices exclude VAT, which is added at 20% when you pay. Plans are available to businesses and organisations based in the UK. Each subscription is for one named user.
What each tier includes
A tick means the feature is available at that tier.
| Feature | Feasibility | Outline | Detailed Design |
|---|---|---|---|
| Land budget, landscape, roads and drainage | ✓ | ✓ | ✓ |
| Capacity by character (Rural edge to Suburban) | ✓ | ✓ | ✓ |
| Housing mix and density | ✓ | ✓ | ✓ |
| Rough appraisal | ✓ | ✓ | ✓ |
| Section 106 and CIL, with your own policy figures | – | ✓ | ✓ |
| Full appraisal, benchmark land value and sensitivity | – | ✓ | ✓ |
| Full typology and tenure mix | – | ✓ | ✓ |
| Density tiles: work out the density of your own house types | – | ✓ | ✓ |
| Land deal: what the landowner receives from a sale, option or promotion | – | ✓ | ✓ |
| Itemised infrastructure, drainage and planting costs | – | – | ✓ |
| Cashflow, with Excel download | – | – | ✓ |
| Plot-by-plot sales pricing, phase by phase | – | – | ✓ |
| Open space management: council adoption or estate charge per home | – | – | ✓ |
| PDF reports | Feasibility | Feasibility and Outline | All four, including Viability and Contributions |
Teams and local authorities
For organisations with several users, or that need to pay by invoice.
Housebuilders, promoters and consultancies
Company licence
From £9,500 a year
- Up to five named users, all three levels
- Extra users £1,000 a year each
- Unlimited sites
- Payment by invoice
- Priority support
- Shared projects and company assumptions, as the online version arrives
Planning authorities
Test the scheme
What should this site reasonably deliver, and can the proposal support it?
Put a developer’s scheme through the same open model, with your own policy figures, and agree the inputs rather than argue over whose spreadsheet is right. We are running a small pilot with a few planning authorities before setting council pricing.
Join the council pilotCommon questions
How do I know I can trust the figures?
Because you can see how every one of them is reached. The model uses the standard residual method that housebuilders, land agents and councils already use for viability, and it shows each step line by line: land take, homes, value, costs, contributions, profit and land value. Every default says where it comes from, policy figures are marked "Default — not verified" until you check them, and every result carries a confidence range that narrows as you replace defaults with your own evidence.
The reports print the assumptions behind each figure, so anyone reading them can follow the working or test it against their own appraisal. The model was built by an architect and masterplanner with 30 years of experience and a background at a leading housebuilder. It draws on the analysis of data from over 200 residential masterplans, and it was tested by housebuilders, planners, landowners and a local authority before launch. It is a tool to help you test options, not a formal valuation, so take professional advice before relying on it for a decision.
What happens at the end of the free trial?
Your trial simply ends. Nothing is charged, because we never asked for card details. To carry on, choose a tier and subscribe.
Can I move up a tier later?
Yes. Your saved sites carry across. Save each stage under its own name, such as Site F and Site O, so moving up never overwrites the earlier answer.
What is founding membership?
The first subscribers get 35% off their first year, with the price fixed for twelve months, while the Model moves online. In return we ask for your feedback, and, if you are happy, a short testimonial.
I only have one site. Do I need a subscription?
No. A single-site pass gives you Outline for one site for 30 days, including its reports, for a one-off £195 plus VAT.
Can I cancel?
Yes. Monthly plans can be cancelled at any time from your account, and you keep access to the end of the month. Annual plans run for the year you've paid for and simply don't renew if you cancel.
Can my council or organisation pay by invoice?
Yes. Councils and other organisations can pay by invoice instead of by card. Contact us and we'll set it up.
Are the council policy figures correct for my area?
The figures loaded for each council are illustrative defaults. Each one shows "Default — not verified" until you confirm it against the council's adopted policy, and reports say which figures were checked.
Is my site data private?
Yes. Your sites are visible only to you. [Confirm details once the online version and privacy policy are finished.]