Pool: do I need a building permit?
A built-in pool alters the terrain, needs equipment, a water connection and drainage, and therefore requires a permit. For mobile above-ground pools, the limits vary by canton: if you keep it up for more than one season, you usually need an application.
The dossier lead time starts once payment and all required documents have been received. Signatures and the authorities' procedure come on top. Understand the timeline.
Distinguish above-ground pools, in-ground pools and equipment
For a pool assessment, state the type of construction, dimensions, installation period and technical equipment. A basin dismantled each season must be described differently from a permanently built-in swimming pool. The cover, plant room, heat pump and water disposal belong in the project description.
Prepare the building application yourself or have it prepared?
Have ready for the preliminary check
- Location, dimensions and height or installation depth of the basin
- Seasonal or year-round installation
- Equipment, heat pump, cover and any plant room
- Details of filling and draining for the local assessment
The first enquiry is free. The site-specific preliminary check costs CHF 149 and is credited against the subsequent application.
Have my pool checkedPool: rules in 9 cantons (as of October 2026)
Applies within the building zone and outside core zones and protected areas. Municipalities may be stricter.
| Canton | Classification | Rule | Legal basis |
|---|---|---|---|
| Zurich | Building permit required | Permanently installed pools require a permit (changes to the terrain, technical equipment, drainage). | § 309 PBG |
| Aargau | Building permit required | Permanently installed pools require a permit; ponds up to around 10 m² are exempt. | § 49/59 |
| Zug | Building permit required | Permanently installed pools require a permit. | § 44 PBG |
| Lucerne | Building permit required | Permanently installed pools require a permit. | § 184 PBG |
| Bern | Building permit required | Permanently installed pools require a permit. | Art. 1a BauG |
| Solothurn | Building permit required | Permanently installed pools require a building permit. | § 3 KBV |
| Basel-Landschaft | Building permit required | Permanently installed pools require a building permit. | RBG |
| St. Gallen | Building permit required | Permanently installed pools require a building permit. | Art. 136 PBG |
| Thurgau | Building permit required | Permanently installed pools require a building permit. | § 98 PBG |
Non-binding overview without guarantee. The cantonal building law, your municipality's building and zoning regulations and the decision of the building authority are authoritative. We examine your specific case.
What the building application for a pool contains
- Cantonal building application form, fully completed, with the client, landowner and plan author.
- Site plan 1:500 based on the official cadastral survey, with the structure drawn in, dimensions and distances to boundaries and roads.
- Floor plan, section and elevation with all height and length dimensions, materials and colours.
- Construction description covering use, construction, drainage and the justification of any exceptions.
- List of enclosures and (where required) neighbours' signatures, noise certificate, energy certificate or design certificate.
- Instructions for profile poles (outline markers), if the municipality requires them.
To the full document checklist and local submission routes
Typical mistakes that can lead to queries
- Boundary distance not respected or not clearly dimensioned.
- Structure planned between the building line and the road without checking.
- The type of fixing is used as the only criterion, without checking use, duration and local rules.
- Landowner's signature missing (condominium ownership: consent of the owners' association).
- Core zone or listed property not recognised, where separate design rules apply.
Frequently asked questions about a pool
Can I install a pool without a building permit?
It depends on the type of construction, size, location and the cantonal and municipal regulations. Check in particular the zone, protection status and distances. Our free check is an initial assessment; in the preliminary assessment we clarify the specific location and the procedure with the competent office.
How much does the building application for a pool cost?
With us, CHF 690 fixed price for the dossier including submission and follow-up questions. Official fees and any agreed additional services are extra. You receive the scope of services before you place the order.
Is an above-ground pool permit-free in principle?
There is no blanket exemption for all cantons. Type of construction, dimensions, installation period, equipment and the specific location must be checked against cantonal and municipal requirements.
Does the same boundary distance apply to the pool and the plant room?
This cannot be set in general terms. The basin, the cover and the plant room may be classified differently. Show all components with their distances on the site plan.
How long does a permit for a pool take?
Our application file turnaround is 5 working days after receipt of payment and all the necessary documents. The authority's processing is separate and depends on the procedure, requests for additional information and any objections.
What happens if the pool is already built?
Send us any existing plans, photos and letters from the building authority. We review the next steps for the dossier and the deadlines set in the letter. Our package for retrospective building applications costs CHF 990; the authority decides on the permit.
Pool planned or already built?
Assessment in 2 working days, application file in 5 working days once all documents are complete. Fixed price CHF 690.