Operator guide — August 2026
The 100 m² That Earn Nothing: Putting Dead Floor Space Back to Work
Almost every established entertainment venue carries floor space that produces nothing: an oversized stockroom, a function room used four times a year, the footprint of an attraction that was removed and never replaced. That space is not neutral. It is fixed cost already paid.
Almost every entertainment venue past its first few years carries floor space that produces nothing: a stockroom sized for inventory volumes the business no longer holds, a function room kept for four parties a year, the footprint left by an attraction that was removed and never reassigned. None of it appears as a line in the P&L, which is exactly why it is never challenged.
This guide is about deciding what to do with it. It does not start from the attraction to buy. It starts from the square metre: what it costs to hold today, what physical properties it needs to be convertible at all, what it has to earn to justify the work, and the cases in which the correct answer is to leave it alone.
A dormant square metre is not neutral, it is cost already incurred
Unused floor space has no cost centre, so it never comes up in a budget review. Rent is nonetheless paid on the full footprint. Heating and cooling work against total volume. Cleaning and routine maintenance scale with area. If the building is owned rather than leased, depreciation runs regardless.
The calculation takes two minutes and does not need an accountant: annual rent, plus utilities, plus cleaning and maintenance, plus amortisation of fit-out, divided by total usable floor area. That is the annual cost per square metre of the venue. Multiplied by the dormant square metres, it is the amount that leaves the business every year with nothing coming back.
The second figure, the one that actually changes decisions, is revenue per square metre for the areas that do work. It is obtained by attributing each attraction's revenue to the area it occupies, including the queueing, circulation and clearance space that attraction needs in order to function at all. The full method, including the attribution traps, is in the article on revenue per square metre across attractions.
Set side by side, the two figures make one point. The cost of the dormant square metre is not the real loss. The real loss is the gap between that cost and what the same square metre would earn if it worked like the square metres next to it. That gap is usually an order of magnitude larger, and it is why converting dead space beats almost any other optimisation at the same capital outlay.
The calculation above is a method, not a benchmark. The values differ radically between a high-street site and a light-industrial one. The only figure that matters is the one from your own P&L.
Not all dead space is the same dead space
Before choosing a use, classify what you have. The typical cases carry different constraints and lead to different decisions.
Four kinds of unused space and what can realistically be done with them
| Type of space | Why it is idle | Main constraint | Realistic use |
|---|---|---|---|
| Oversized stockroom | Sized for inventory volumes the business no longer carries | Back-of-house access, height and services usually need rework | Compact-footprint attraction, once an opening to the main floor is cut |
| Underused function room | Held for parties and events concentrated into a few weeks a year | Cannot be given up: must stay bookable | Hybrid use: attraction on free days, function room on booked slots |
| Footprint of a removed attraction | The previous attraction was taken out and the area never reassigned | None: already public-facing, with services and circulation in place | Direct replacement with an attraction of higher revenue per square metre |
| Residual and offcut space | Wide corridors, corners, areas under 20 m² | Irregular shape, cannot be aggregated | No attraction: queueing, retail, or single-station formats |
The footprint of a removed attraction is the easiest and most overlooked case. Services, circulation routes and customer habits already exist, so conversion cost is the lowest of the four and payback the shortest.
The distinction matters because the value of a conversion depends not only on the square metres released, but on what it costs to make them usable. Two hundred square metres reachable only through the stockroom are worth less than fifty square metres already facing the main floor.
Dead square metres and dead hours are the same accounting problem
There is a symmetry almost no operator uses. A square metre earns only during the hours the venue trades and that square metre is occupied. Area and opening hours multiply. Converted space that sells only at the weekend returns a fraction of what the same space returns when it is also sold midweek.
Data from the Vortex Play site in Latina — a 6×9 arena, 54 m², extracted from the point-of-sale system for February to August 2026 — shows how much more distribution matters than the average.
Player distribution by daypart — Latina site
| Share of players | Peak season (Feb–Mar) | Off season (Jun–Jul) |
|---|---|---|
| Saturday and Sunday | 53.6% | 30.2% |
| 17:00–20:00 | 40.1% | 24.4% |
| 20:00–24:00 | 50.6% | 70.8% |
| 03:00–17:00 | 0% | 0% |
Proprietary Vortex Play data, Latina site, February–August 2026, extracted from the point-of-sale system. Base: 1,435 players in peak season, 794 off season. Shares are of players, not of transactions.
The last row is the instructive one, and it is not a weakness. The site opens at 17:00, so there is not a single sale between 03:00 and 17:00 because those hours were never put on sale. The midweek afternoon is not underused inventory. It is inventory that was never opened.
Two consequences for anyone evaluating a conversion. First, an attraction that needs dedicated staff to operate should be sized against the hours the venue is already staffed, otherwise you are buying capacity you cannot sell. Second, the same attraction performs very differently depending on how many demand channels it can serve — evening walk-in, pre-booked groups, birthdays, corporate. Choose the use and the channel that will fill it in the same decision, not in sequence. The full set of levers, in priority order, is in the guide to increasing entertainment venue revenue.
What actually makes a space convertible
Seven things are worth measuring before requesting a quote. These are the constraints that kill projects at survey stage, and they can be checked in an afternoon with a tape measure and a floor plan.
Net usable area and shape. What counts is the clear rectangle, not the gross area on the plan. Sixty square metres in an L-shape with a column in the middle offer far less than fifty regular ones. Columns inside the play perimeter are the constraint that most often forces a step down in format.
Clear height. Free-roam needs height clear of services across the whole play area, not just at the centre. Cable trays, downstand beams and air-handling units must be surveyed first, because relocating them costs more than the price difference between two formats.
Public access. A space reachable only by crossing back-of-house areas is not convertible until an opening is cut from the main floor. That is frequently the only building work genuinely required, and it belongs in the budget alongside the system itself.
Power and network. A dedicated supply is required, along with stable, consistent wireless coverage across the entire area, with access points on the perimeter. Optical tracking does not tolerate dead zones.
Ventilation and climate. An active play area generates thermal load and needs air changes. A space built as a stockroom almost always has plant undersized for public occupancy.
Noise transfer. Attraction audio and player voices need containment where the space adjoins dining areas or anywhere the team takes bookings by phone.
Consents and life safety. Changing use from storage to a public-facing area engages permitted use, means of escape, occupancy limits and insurance cover. Local requirements vary by jurisdiction, so these checks belong with your own consultant, and they belong before the system is ordered rather than after.
Play area and simultaneous players by format
Play area only. Kitting-up, briefing and waiting space is additional: as a survey rule of thumb, allow a further 20–30% of the play area. Full format specifications are on the arena page.
Full specifications for each format are on the VR arena page; typical layouts for multi-attraction venues are on the VR for entertainment centres page.
What the conversion costs, and what it has to return
The Vortex Play price list effective September 2026 ties price to format, meaning to play area and simultaneous players served.
Vortex Play price list — September 2026
Prices exclude VAT. Turnkey system, installed in 2–3 days. Building work on the venue — access opening, dedicated electrical supply, climate and ventilation — is excluded, since it depends on the starting condition of the space and is quantified at survey.
Three observations that matter more than the list price.
Format is chosen against the space and the groups, not the budget. A system undersized relative to the groups the venue already receives saturates earlier and caps revenue per hour at exactly the moment it reduces the investment. It is the most common way to get a large-space conversion wrong.
Space that cannot be permanently dedicated needs a different answer. A function room that must be handed back on booked slots is better served by the VR Party Box, which sets up in fifteen minutes and moves, or by the Arena Mobile, which occupies 36 m², stands 4 m at the apex and inflates in fifteen minutes. In those cases the binding constraint is reversibility, not capital.
Payback depends on utilisation far more than on purchase price. The same system pays back on very different timelines in a venue that sells only at the weekend and in one that already runs a pre-booked group channel. Across the Vortex Play network the observed average payback is 4–8 months, with the lower end associated with venues that already had traffic to convert. Model it against your own figures — real utilisation, not peak — with the ROI calculator.
Induced revenue belongs in the calculation too, and it is the line that dead-space conversion most often generates and almost nobody attributes. At the Cuneo site, installing the arena produced a 20% increase in customers on the bowling lanes: revenue generated by the new attraction, booked under a different heading.
When to leave the space alone
There are four cases in which the conversion should not go ahead, and they are worth recognising before spending on design.
Net usable area is below 25 m², or the shape is irregular. No free-roam format fits below that threshold, and forcing an installation produces an experience customers do not repeat. Small space earns more as queueing area, retail, or a single-station format.
The space already has a certain alternative income. If those square metres are lettable to another operator on a signed agreement, the comparison is between two revenues, not between a revenue and zero. The conversion wins only if revenue per square metre clearly exceeds the rent, and it should be discounted for operating risk.
The venue is already saturated in the hours it sells. Where utilisation in strong dayparts is already high and weak ones have never been worked commercially, a new attraction moves customers rather than adding them. Build the channel first, then add capacity.
There is no one to run it. An attraction requiring greeting, briefing and floor assistance, handed to already-committed floor staff, runs below potential and produces dead time between groups. Half a person's cost is almost always lower than the revenue lost to missed rotations.
The first three cases are visible in data the venue already holds: utilisation by daypart, actual area per attraction, and the share of revenue that arrives pre-booked. The fourth is visible in the staff rota. If even the first of those is missing, the intervention that precedes the conversion is not commercial: it is extracting the data.
Frequently Asked Questions
How do you calculate what unused space in a venue costs?
Add annual rent, utilities, cleaning and routine maintenance, and amortisation of fit-out, then divide by total usable floor area. That gives annual cost per square metre. Multiplied by the dormant square metres it gives the direct cost of the dead space. The real loss is larger, because it should be measured against the revenue per square metre the active areas of the venue already produce.
How much floor area does a free-roam VR arena need?
The smallest format is 5×5, meaning 25 m² of play area for 6 simultaneous players. It scales through 6×6 (36 m², 6 players), 6×9 (54 m², 8 players), 8×8 (64 m², 10 players) and 10×10 (100 m², 12 players). Kitting-up, briefing and waiting space is additional: allow a further 20–30% of the play area as a survey rule of thumb. What counts is the clear, regular rectangle, not the gross area on the plan.
Can a stockroom or an underused function room be converted?
Yes, under different constraints. A stockroom nearly always requires cutting an opening from the main floor, because a space reachable only through back-of-house is not usable by the public, and its ventilation is usually undersized for public occupancy. A function room instead has to stay available on booked slots, so a reversible format works better: a VR Party Box or an Arena Mobile, both of which set up in fifteen minutes.
What does it cost to put the space back to work with a VR attraction?
The Vortex Play price list effective September 2026 starts at €36,000 excluding VAT for the 5×5 arena on 25 m² and reaches €69,000 for the 10×10 format on 100 m², with 6×6 at €39,000, 6×9 at €48,000 and 8×8 at €57,000. VR Party Boxes run from €12,000 to €25,500 and the Arena Mobile is €4,800. These are turnkey systems; building work on the venue sits outside and is quantified at survey.
How long does it take to convert the space and open to the public?
System installation takes 2–3 days. Total lead time depends on the building work: the footprint of a removed attraction, which already has services and circulation, is the fastest case, while a stockroom needing a new opening, a dedicated electrical supply and climate work extends the programme. Permitted use, means of escape, occupancy and insurance checks vary by jurisdiction and should be closed with your own consultant before the system is ordered.
When is converting unused space the wrong move?
In four cases: when net usable area is below 25 m² or the shape is irregular with internal columns; when those square metres are lettable to a third party on a signed agreement and the rent stands up against the attraction's revenue per square metre; when the venue is already saturated in the hours it sells and has never worked the weak dayparts commercially, so new capacity moves customers instead of adding them; and when there is no staff capacity to run the attraction properly.
Next step
The quote comes with a layout, an equipment list and the numbers for your venue and start from the floor plan: the format compatible with the available area, the layout, the building work required and a utilisation assumption. To talk it through first: [email protected].