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Full Mall Playground ROI Calculator
The calculator on the main page runs the short model. This one adds the four things a lender or a landlord will ask about: a weekday and weekend footfall split, a seasonality adjustment, a maintenance reserve carried as its own operating line, and a sensitivity band on admission price.
Every field starts empty. Nothing here is prefilled from another operator’s venue, because an admission price borrowed from a different catchment is worse than a blank.
Run Your Numbers
Monthly Revenue Inputs
Monthly Operating Cost Inputs
Project Cost and Sensitivity
Payback is project cost divided by monthly net. It is a contribution-level figure: it does not subtract depreciation or interest, so it answers how fast the build repays itself, not what your accounting profit will be.
What Each Line Means
Why the Footfall Split Is Two Fields
Weekday and weekend traffic behave differently enough that a blended monthly number hides the problem this category actually has. Fixed expenses continue whether the door count is 30 or 300, so a venue can look healthy on a blended average and still lose money Monday to Thursday.
Why the Maintenance Reserve Sits in Operating Cost
Netting, foam covering and ball pits are consumables in a high-traffic environment, and surfacing loses measured performance as it compacts. Carrying the reserve as an operating line from month one keeps it out of a future capital request.
What the Percentage Rent Field Does
A percentage rent clause hands the landlord a share of gross sales above a breakpoint. Entering that share here reduces the revenue the model keeps. Set it to zero if your lease is a flat monthly rent.
Get the lease structure in writing before you model anything. The math is only as reliable as the tenancy it assumes.
Take It Further
Send the unit dimensions, the clear height and your floor plan, and our project engineer returns a quotation within 24 hours together with a layout direction at no charge.



