Condominium ownership: rights, obligations and what you should check before buying
Anyone who buys a condominium acquires a share in the entire property and becomes part of a community. Comparis explains rights and obligations, the renewal fund and the documents you should check before buying.

30.09.2026

iStock/elxeneize
The key points at a glance
With condominium ownership, you own a share in the entire property and the exclusive right to your apartment. The floor, roof, façade and stairwell belong to everyone jointly.
Decisions regarding the common areas are made by the condominium owners’ meeting. Depending on the measure, a majority, a qualified majority or the consent of all is required.
Check before buying regulations, minutes and renewal fund. Renovations that have been approved also apply to new owners.
As a guideline for the renewal fund the following applies: 0.4% of the building insurance value per year. However, many associations also pay in less.
1. What is condominium ownership?
Condominium ownership is a special type of co-ownership. When you purchase a condominium, you acquire a share of the building and/or land at the same time. This share is recorded in the land register. It plays a central role in the distribution of costs between the individual condominium owners.
These are the criteria when Buying a condominium at a glance:
You acquire a share of the building and/or land.
This share is recorded in the land register.
The cost of communal services/spaces is usually determined on the basis of the proportion of the property that has been acquired (the so-called value share).
Together, the condominium owners form the homeowners’ association.
Owner-occupied flat or condominium: what’s the difference?
In everyday life, both terms mean the same thing. Legally, they differ: The Condominium is the apartment that you use alone. Condominium ownership is your share of the entire property, which includes the exclusive right to this apartment. So you are never just buying the apartment, but always also a share of the grounds, the roof and the stairwell.
What is the value share?
The value share indicates what proportion of the entire property you own. It is stated in the deed of establishment, usually in thousandths (Art. 712e CC). Your share of the common costs and your voting weight in important decisions are based on the value share – unless the regulations provide otherwise.
Example: Your apartment has a value share of 120/1000. If the roof renovation costs 300,000 francs and the renovation fund is not sufficient, you will be responsible for 36,000 francs.
2. Who owns what in condominium ownership?
Your own apartment and any rooms that belong to it, such as a cellar or an attic storage room, belong exclusively to you. This is referred to as special right in condominium ownership. With home contents insurance you protect yourself against damage to or loss of your belongings in these rooms.
Those parts of the building that help to «preserve the sound condition and good appearance of the building as a whole» are always in communal ownership:
Land: Courtyards, gardens, outdoor car parking spaces, seating areas, green areas, etc.
Essential building elements: Foundations, load-bearing walls, retaining and enclosing walls, load-bearing ceilings, roof, etc.
Building elements that determine the external appearance of the building: External plasterwork, windows, window grilles, roller shutters, sun blinds, external balcony facings or railings, etc.
Communal installations and equipment: Main entrance door, stairways, lifts, central heating, washing and drying rooms, communal rooms (e.g. hobby rooms), communal aerials, all supply and disposal pipes (up to the connection into the individual apartment), etc.
The homeowners’ association may draw up house rules that govern the management and use of these communal areas. Here you will find the legal basis for condominium ownership.
Who owns the balcony?
Balcony slab, parapet and exterior façade are common property because they support the building or determine its appearance. The interior surface area may be covered by your exclusive rights. The constitutive act and the allocation plans are decisive. You are therefore not allowed to decide on a new awning or a different colour on your own.
Who owns the garden? The right of exclusive use
As part of the land, the garden always belongs to the community. However, one party is often allowed to use it alone.
Would you like exclusive use of particular areas or rooms owned communally? If so, you can apply to the community of owners for a right of exclusive use apply for.
The relevant areas or rooms, such as a garden or roof terrace, remain the property of the community. But you have sole use of them. In return, you may be obliged, by way of a resolution, to be solely responsible for the upkeep. As a rule, a right of exclusive use is included in the regulations.
If you buy an apartment with a patio, the right of exclusive use is usually already set out in the regulations or in the deed of constitution. The community can only withdraw or change it with your consent (Art. 712g para. 4 CC).
3. How does the condominium owners’ association make decisions?
As a condominium owner, you can freely dispose of your own apartment and any ancillary rooms that belong to it, such as a cellar or attic storage room. Within the apartment you are also allowed to carry out alterations and even move walls, as long as these are not load-bearing elements.
The use of and changes to communal rooms and areas are decided by all co-owners jointly. They usually do this at a regular owners’ meeting.
The Condominium owners’ meeting takes place at least once a year. It approves the budget, the annual financial statements and the distribution of costs (Art. 712m CC). It also elects the management company and decides on building works.
What majority is required for building works?
A resolution of the meeting is required for alterations to common areas, such as replacing a front door, erecting an awning or installing a satellite dish on the balcony. The majority required depends on the type of measure:
| Type of measure | Examples | Consent required |
|---|---|---|
| Necessary | Seal a leaky roof, replace pipes, repair damage to the façade | Majority of all condominium owners |
| Useful | Better thermal insulation, energy-efficient windows | Majority of all, representing at the same time more than half of the value shares (qualified majority) |
| Luxury measures | Swimming pool, façade made of expensive material | All condominium owners |
4. What should you check before buying an owner-occupied apartment?
By making the purchase, you accept the regulations and all previous decisions of the community (Art. 649a CC). If the meeting has decided to renovate the façade, you will contribute to the cost as the new owner. You should therefore request and read these documents before signing:
| Document | What to watch out for |
|---|---|
| Instrument of constitution with allocation plans | Which rooms are covered by exclusive rights? What is the co-ownership share of the apartment? Does the community have a right of first refusal or a right of objection? |
| Rules and regulations (current version) | Allocation of costs, majorities, rights of exclusive use, rules on pets, letting or business use. Changes are often not noted in the land register – the management company has the valid version. |
| Minutes of the meetings (last three to five years) | Renovations that have been approved but not yet paid for, points of contention, requests for higher contributions |
| Annual financial statements and budget | Ongoing costs for the apartment, payment arrears of individual owners |
| Status and planning of the renovation fund | Balance, annual contribution, planned renovations over the next 10 to 15 years (see Chapter 5) |
| Management agreement and house rules | Management fees and services, rules for quiet hours, the laundry room and communal areas |
Warning signs in the documents
A renovation has been approved, but the costs have not yet been paid. Stipulate in the sale contract who will bear this share.
The renovation fund is significantly below the benchmark, even though the building is more than 20 years old.
Individual owners are in arrears with their contributions.
The minutes show recurring disputes or ongoing legal proceedings.
If you buy an apartment that has not yet been built, the seller usually requires a reservation payment. HEV Switzerland advises not paying more than 20,000 to 30,000 francs to pay. In the purchase contract, link instalment payments to the progress of construction. In addition, set a fixed handover date.
Are you looking for an apartment to buy? The Comparis property market includes listings from all major property portals, as well as exclusive listings – all in one place.
5. What is the renovation fund?
The renovation fund is the joint reserve for major works on the roof, façade, lift or heating. It is not mandatory: the meeting decides whether to set up a fund (Art. 712m CC). However, most regulations provide for one.
If the homeowner association votes to go ahead with a particular remodelling, renovation or purchase project, all parties are obliged to contribute financially. The source of funding for remodelling and renovation work comes from the so-called renovation fund for condominium ownership. The annual contributions are determined by the condominium owners’ association.
How much should be in the fund?
As a guideline, an annual contribution of at least 0.4% of the building’s insured value, until the fund reaches around 6% of this value. Raiffeisen recommends 0.8% for long-term value retention. In practice, many homeowners’ associations set aside less: in the Lucerne metropolitan area, the average was 0.25%.
The building insurance value can be found in the building insurance policy. The property management company can provide it.
| Example calculation | Amount |
|---|---|
| Building insurance value | CHF 4,000,000 |
| Annual contribution at 0.4% | CHF 16,000 |
| Your share with a co-ownership share of 100/1000 | CHF 1,600 per year |
| Target fund size (6%) | CHF 240,000 |
| Fund balance as per the annual financial statements | CHF 60,000 |
| Upcoming façade renovation | CHF 400,000 |
| Community shortfall | CHF 340,000 |
| Your share of the shortfall | CHF 34,000 |
When you take over the apartment, your share of the fund is transferred to you. Check whether the purchase price includes this share. If the fund is too small, you should take the shortfall into account in the price.
6. What ongoing costs are there?
Owners must also jointly finance various services and incidental costs in the condominium. This applies to operating costs and maintenance for communal structural elements, for example. These also include installations such as the heating system or the lift, as well as any professional management. On the plus side, certain investments in the property are tax-deductible.
The management company allocates these common costs according to the co-ownership share. If an apartment does not use a facility, such as the lift on the ground floor, this must be taken into account when allocating costs. Your ongoing costs include:
Interest and amortisation of the mortgage
Share of the common incidental costs: heating, water, caretaking, garden maintenance, insurance
Proportion of the management fee. It usually consists of a basic amount and an amount per apartment.
Contribution to the renewal fund
Maintenance of the own apartment, such as the kitchen, bathroom and flooring
7. When is it worth buying a condominium?
Owing to a shortage of land, it’s now virtually impossible in many places to build detached houses. For many people looking to buy a home, a condominium is the only affordable alternative. Condominiums are created as new builds or through the conversion of older residential buildings into freehold units.
Whether an apartment or a house is better suited to you can be seen from the comparison buying a house or apartment.
Think carefully about whether you want to go from being a tenant to a property owner. Weigh up the pros and cons of buying for your personal situation.
Regardless of whether you are buying a house or a condominium, enter the purchase price and your own funds and see which mortgage rates are suitable for your financing.
Buying a property: all the steps at a glance
This guide is part of step three, «Search». In the overview, Comparis shows all the steps, from the question of whether it is worth buying to moving in.
Share via:
This article was first published on 16.11.2018