Variable-by-variable impact
See the effect of moving build, GRV, finance and statutory each through a defined range.
Use case · modelling
Know which input moves the answer.
Popurise turns the feasibility into a sensitivity read: which inputs are load-bearing, which are noise, and where the breakeven thresholds sit on margin and IRR.
The job
Sensitivity, not scatter charts.
A useful sensitivity is not 50 charts. It is a ranked read of which inputs matter, by how much, and where the deal turns. Popurise produces that read on every project.
Breakeven thresholds
Read the exact input value at which margin or IRR falls below your target.
Top-of-mind drivers
The top three inputs that explain most of the variance, ranked.
Joint stresses
Combine a build increase with a GRV cut. See whether the deal still works.
Across scenarios
Run the sensitivity against base, downside and stretch in the same view.
Export the sensitivity
PDF and CSV ready for the IC pack and the capital partner Q&A.
When it matters
The moments the IC asks: what if.
Pre-IC pack
IC will ask which input matters most. Without sensitivity you guess. With it you have a ranked answer.
Pre-bid
Before the bid sheet goes in, you need to know the build rate at which the bid stops working.
Cost increase
Builder comes back over budget. Sensitivity tells you what GRV move offsets it.
Rate move
Senior debt moves 75bp. You need to see which deals in the pipeline lose equity IRR.
Inputs and outputs
What goes in. What you can defend.
Inputs that drive it
- Base scenario inputs (scheme, cost, revenue, finance)
- Sensitivity range per variable (low, base, high)
- Target margin and IRR for the breakeven solve
- Joint stress definitions (e.g. build +5%, GRV -3%)
- Variables to include in the ranked view
Outputs that matter
- Ranked impact on profit on cost and equity IRR
- Breakeven value per input at target margin
- Peak debt and peak equity by sensitivity case
- Residual land value at the stressed range
- Top three drivers, called out explicitly
- Sensitivity table for the IC appendix
How it works
From base case to ranked drivers, in four steps.
- 01
Lock the base case
Confirm the scheme, costs, revenue, finance and timing you are sensitising around.
- 02
Set the ranges
Choose a low and high for each variable. Use defaults or supply your own band.
- 03
Read the impact
See which inputs move margin and IRR the most, ranked. Identify the breakeven thresholds.
- 04
Combine the cases
Layer joint stresses, e.g. build up and GRV down. Confirm the deal still works, or note where it does not.
Versus the alternative
Sensitivity that holds up to scrutiny.
Spreadsheet sensitivity
Manual cells and broken links
- Data tables that break when a row is added
- Twelve sensitivity tabs nobody fully trusts
- No structured way to compare two stresses
- Sensitivity stale by the time the IC pack is ready
Popurise
Sensitivity in Popurise
- Sensitivity computed by the engine, every time
- Ranked drivers, not 12 unread tabs
- Joint stresses configured in a single view
- Always current, refreshes with the project
Rank the drivers on your next deal in Popurise.
No spreadsheets. No setup. Fourteen-day free trial, no credit card.