Skriva en lean affärsplan för bastun
Ett praktiskt ensidesupplägg för att planera en bastuverksamhet: kapacitetsmatte, start- och driftskostnader, intäktsscenarier, nollpunkt och ett räkneexempel.
You do not need a 40-page document to open a sauna. You need one honest page of numbers and a clear answer to a single question: at realistic utilization, does this sauna cover its costs — and if it's meant to pay you, does it pay you?
This guide walks through the lean plan we'd want to see from anyone starting out, whether you're building a commercial venue or a volunteer-run association sauna. If you haven't yet settled on how you'll operate, read sauna business models first — the model determines almost every number below.
1. Concept and audience in five sentences
Write down, plainly: what the sauna is, where it is, who it's for, why they'll come, and what one visit costs. If you can't do this in five sentences, the numbers that follow will wobble. "A 12-seat wood-fired harbour sauna for local winter swimmers and weekend visitors, open Thursday–Sunday, €18 per 90-minute session with sea dip included" is a plan. "A wellness destination for everyone" is not.
Be specific about the audience because it drives pricing, hours, and marketing. Regular local bathers want cheap multi-visit cards and early-morning slots; tourists want weekend availability and pay more per visit but never return.
2. Capacity maths: seats × sessions × utilization
Your theoretical revenue ceiling is simple:
Seats × sessions per week × price = weekly ceiling.
A 10-seat sauna running four 90-minute sessions a day, five days a week, at €15 per seat has a ceiling of 10 × 20 × €15 = €3,000 per week.
You will not hit the ceiling. The number that decides your fate is utilization — the share of seats actually sold. New saunas commonly sit at 25–40% overall, because weekday daytime slots are empty even when Saturday sells out. A mature, well-loved venue might average 50–65% across all opening hours. Plan at 30–40%, not at your dream Saturday. Getting utilization up over time is a scheduling and marketing problem — see bookings and capacity and sauna marketing basics.
3. Startup costs
Ranges below are typical European figures; treat them as orientation, not quotes.
| Item | Typical range | Notes |
|---|---|---|
| Sauna structure (buy) | €8,000–40,000 | Barrel/trailer at the low end; purpose-built cabin higher |
| Sauna structure (build) | €5,000–25,000 + labour | Cheaper in materials, expensive in your time |
| Stove and chimney | €1,500–8,000 | Wood-fired needs certified flue installation |
| Site works | €2,000–20,000 | Groundwork, decking, mooring for floating saunas |
| Utilities connection | €1,000–15,000 | Electricity supply upgrades can surprise you |
| Changing room, showers | €3,000–15,000 | Often underestimated; guests judge you on this |
| Permits, professional fees | €500–5,000 | Varies wildly by municipality |
| Contingency | 15–20% of total | You will need it |
A modest private-hire setup might land at €20,000–40,000 all-in; an urban drop-in venue with proper changing facilities can easily pass €100,000. Your choices in sauna hardware and setup move these numbers more than anything else.
4. Operating costs
Monthly, for a small venue (typical ranges):
- Heating: wood €150–500 (roughly 1–2 m³ of dry firewood per week of regular use), or electricity €200–800 depending on stove size, hours, and your tariff.
- Rent or lease: €0 (own land, or municipal agreement) to €2,000+ in cities.
- Cleaning and consumables: €100–400 plus daily labour — see the cleaning and hygiene guide for what "clean enough" actually means.
- Insurance: €50–250 for liability and property, more for floating or mobile setups.
- Staff: €0 if volunteer or owner-run; otherwise your largest line. One paid host per open session adds up fast.
- Maintenance reserve: put aside 3–5% of revenue; benches, stoves, and stones wear out on a schedule.
- Booking platform, card fees, marketing: €50–200.
5. Revenue scenarios and break-even
Model three cases — pessimistic, expected, optimistic — by varying only utilization. Then find break-even:
Break-even utilization = monthly fixed costs ÷ (seats × sessions × price × ~4.3 weeks).
If break-even needs more than about 50% average utilization, the plan is fragile: one bad winter of low demand or high energy prices sinks it. Fix it by cutting fixed costs, raising prices, or changing model (private hire converts fixed heat costs into per-booking costs).
6. A worked example (illustrative)
All figures below are illustrative, not benchmarks.
A 10-seat lakeside sauna, private hire Friday–Sunday plus public drop-in two evenings a week:
- Capacity: 8 private slots/week at €150 + 4 drop-in sessions × 10 seats × €15.
- Ceiling: €1,200 + €600 = €1,800/week ≈ €7,700/month.
- Expected case at 60% private-hire occupancy and 40% drop-in utilization: €720 + €240 = €960/week ≈ €4,100/month.
- Monthly costs: rent €600, wood €300, cleaning and consumables €250, insurance €100, fees and marketing €150, maintenance reserve €150 = €1,550.
- Expected surplus ≈ €2,550/month before the owner's own labour — roughly 60–70 hours of hosting, heating, and cleaning. That's a wage, not a windfall. In the pessimistic case (half the expected bookings), surplus falls to ≈ €500, which is why the operator keeps a day job in year one.
7. Seasonality
Sauna demand is seasonal almost everywhere, but not uniformly: Nordic waterfront saunas peak October–April with the ice-dipping season; urban saunas flatten out; tourist-area saunas may peak in summer. Build your plan on a monthly curve, not an annual average — a venue that's profitable "on average" can still die in a cash-poor August. Prepaid season passes and well-timed events are the classic tools for pulling cash into the shoulder months.
8. What the plan is for
A lean plan is a decision tool, not a fundraising prop. Revisit it quarterly against real numbers: actual utilization, actual wood consumption, actual cleaning hours. The gap between plan and reality in the first six months tells you more than any forecast — and don't finalize anything before you've confirmed the regulatory costs in permits, insurance and regulations, which can quietly add months and thousands of euros.