What to expect
| Typical duration | Preparation works 2–8 weeks |
|---|---|
| Cost band | Figures live in the cost index |
| Permit required | Registration required · works may need a permit |
| Seasonal constraint | Prepare in the closed season |
Spend in this order
Owners want to start with the visible work. The properties that succeed do it in this order, and it is worth being blunt about why.
- Resolve any unauthorised structure. Nothing else is worth doing until this is clear. See legalisation.
- Drainage capacity. The most common failure, and it fails during a full house. See drainage and septic.
- Electrical capacity. Guests run everything at once. Boards sized before air conditioning trip in August. See electrician.
- Water pressure and hot water. Multiple simultaneous showers at elevation in peak season is the actual test case. See plumbing.
- Safety. Balustrade heights and fixings, glazing, pool, steps, external lighting. On a caldera property with a drop this is serious. See glass balustrades.
- Damp and ventilation, so a property closed between bookings does not smell.
- Air conditioning capacity and reliability. The single most reviewed system in a Santorini rental. See air conditioning.
- Then the visible work — kitchen, bathrooms, finishes, outdoor space.
What actually generates bad reviews
From what we get called back to fix, the recurring complaints are consistent and almost all of them are building problems rather than hospitality problems.
| Guest complaint | Actual cause | Fix |
|---|---|---|
| Weak shower | Elevation plus peak-season network demand, or a scaled booster | Pressure assessment and storage or boosting |
| Air conditioning cannot cool the bedroom | Undersized for the actual duty, or a corroded condenser coil | Correct sizing and pre-season servicing |
| Damp smell | Closed property with no ventilation, or impermeable finishes on old walls | Ventilation strategy and breathable finishes |
| Pool not usable | Winter neglect, or a failure during the stay | Winter care and in-season servicing |
| Noise from next door | Subdivided property with no acoustic separation | Acoustic work during renovation — the only opportunity |
| Drain smell or backing up | System at capacity for peak occupancy | Capacity assessment before listing |
Building for the way guests actually use a property
- Durability over delicacy. A marble worktop will be marked by the end of the first season. A painted timber edge will be chipped by August. Choose finishes that survive people who are on holiday.
- Serviceable and obtainable. An exotic imported appliance nobody on the island can repair is a room out of use in season. Ordinary and fixable beats impressive and orphaned.
- Obvious, not clever. If something needs explaining, it generates a message at midnight. Keyless entry is the exception worth making — it removes the key handover entirely. See smart home.
- Spare parts thought about in advance. A handle or hinge that has to be ordered from abroad means a broken door for weeks.
- Outdoor shelter. Usable outdoor space in wind and afternoon sun is worth more in reviews than another finish upgrade.
The pre-season checklist
Booked in autumn, done before March, and it prevents almost every in-season emergency we attend.
- Air conditioning serviced and coils cleaned, before the season not during it.
- Pool brought up and running, well before the first booking rather than the week of it.
- Water system checked: pressure, storage, hot water, treatment.
- Solar cylinder descaled and the element checked. See solar water heaters.
- Terrace outlets and gutters cleared after the winter.
- Balustrades, handrails and external fixings inspected.
- Deep clean including everything the season will not allow time for. See post-construction cleaning.
- Locks and door hardware serviced — salt seizes them and it is a two-minute job that prevents a call-out.
Questions people actually ask
What registration do I need to let short-term?
Registration is required and the rules have changed repeatedly in Greece. Confirm the current position with an accountant or lawyer — this is not an area to rely on any website for. See short-term rental compliance.
What is the most common thing that goes wrong?
Drainage at peak occupancy, followed by electrical capacity. Both are entirely predictable from an assessment and both fail at the worst possible time.
Is a pool worth adding?
Commercially it usually is on this island. Budget the running cost honestly — water, plant, maintenance and winter care — and remember that a pool not ready for the first booking is a worse outcome than no pool.
Can a property be renovated between bookings?
Small works, sometimes. Anything substantial should be a closed-season programme. The arithmetic usually favours closing for a shorter uninterrupted period — we will show you both.
What single upgrade improves reviews most?
Reliable air conditioning that actually holds a bedroom overnight in August, closely followed by shower pressure. Neither is glamorous and both appear in reviews constantly.