Advice · Co-ownership
Co-ownership and the owners' association
Costs, reserve fund and sale, clearly explained.
With an apartment, alongside the rent you often also see costs and charges. But what may you legally pass on to the tenant, what always stays with the owner, and how are costs such as the syndic, the lift, the caretaker or the block fire policy divided? On this page you get a clear overview of how costs are split within a co-ownership in Flanders, including a practical table and a worked example based on your own statement.
We also explain the difference between working capital and the reserve fund, and show why the financial health of the owners' association is crucial when selling. Find out what buyers should check before the compromise, who pays for decisions of the general meeting, and how to avoid disputes afterwards. For tenants, landlords, buyers and sellers.

Who pays which costs when renting in Flanders?
Since 2018, the Flemish Residential Tenancy Decree sets out who bears which costs. The rule of thumb is simple: the tenant pays for daily use and minor repairs, the landlord for major investments. But how does that work specifically for syndic costs? Which share of these costs may a landlord actually pass on to the tenant?
When an expense is not explicitly listed, the general principle applies: usage costs and minor maintenance are for the tenant, structural repairs and investments for the landlord.
| Cost | For tenant | For landlord |
|---|---|---|
| Water consumption | X | · |
| Heating oil/natural gas consumption | X | · |
| Electricity of the common areas | X | · |
| Waste collection charges (collective) | X | · |
| Cleaning and maintenance of common areas | X | · |
| Minor repairs to common areas | X | · |
| Major repairs to common areas/installations | · | X |
| Purchase or replacement of utility meters | · | X |
| Lift: periodic maintenance | 50% | 50% |
| Lift: risk analysis and preventive inspection | · | X |
| Lift: major parts and modernisations | · | X |
| Syndic (flat-rate split) | 34% | 66% |
| Caretaker | 75% | 25% |
| General meeting costs | · | X |
| Management and administrative costs | · | X |
| Investments and reserve fund | · | X |
What about the fire insurance (block policy) and the property tax?
The block policy is the building's shared fire insurance and is in practice treated as an owner's cost. The premium is therefore usually not passed on to the tenant. The tenant normally takes out their own tenant liability insurance, unless they fall under the block policy through a clause such as waiver of recourse.
For a residential lease (main residence), the property tax may never be charged to the tenant. Even if this were provided for contractually, this tax remains a cost for the owner.
Calculate the costs and charges you may pass on to your tenant
Start from your most recent statement. Enter, per item, what you actually paid. The tool automatically determines the share you may pass on to the tenant according to the distribution key.
Your statement: enter the amounts
Amounts in euros, leave blank = 0.
| Cost | Paid | Distribution key |
|---|---|---|
| Water consumption | Tenant 100%Landlord 0% | |
| Heating oil/natural gas consumption | Tenant 100%Landlord 0% | |
| Electricity of the common areas | Tenant 100%Landlord 0% | |
| Waste collection charges (if collectively organised) | Tenant 100%Landlord 0% | |
| Cleaning and maintenance of common areas | Tenant 100%Landlord 0% | |
| Minor repairs to common areas | Tenant 100%Landlord 0% | |
| Major repairs to common areas/installations | Tenant 0%Landlord 100% | |
| Purchase/replacement of utility meters | Tenant 0%Landlord 100% | |
| Lift costs: periodic maintenance | Tenant 50%Landlord 50% | |
| Lift costs: risk analysis and preventive inspection | Tenant 0%Landlord 100% | |
| Lift costs: major parts and modernisations | Tenant 0%Landlord 100% | |
| Syndic costs | Tenant 34%Landlord 66% | |
| Caretaker | Tenant 75%Landlord 25% | |
| General meeting costs | Tenant 0%Landlord 100% | |
| Management/administrative costs | Tenant 0%Landlord 100% | |
| Investments/reserve fund | Tenant 0%Landlord 100% | |
| Block policy (shared fire insurance) | Tenant 0%Landlord 100% | |
| Total paid | € 0,00 |
Result
Can be passed on to the tenant
€ 0,00
Per month (indicative): € 0,00|Per year: € 0,00
Tenant's share: 0%
Borne by the landlord
€ 0,00
The difference between the total you paid and the share you may pass on according to the distribution key.
Landlord's share: 0%
Fixed sum or advance?
Fixed sum (flat amount):
you agree a fixed monthly sum for costs and charges. This amount stays the same in principle and is not adjusted in the meantime, unless you also contractually provide for indexation (as with the rent).
Advance:
you charge a monthly advance. After receiving the syndic's statement, a settlement follows. It is then reviewed which costs you paid as landlord, which share can be passed on to the tenant and which share remains an owner's cost.
This tool helps you actually determine the passable-on share based on your latest statement.
Frequently asked questions
What is an owners' association (VME)?
An owners' association is the association of co-owners of an apartment building. As soon as a building has several owners and common areas, an owners' association is automatically set up. Every owner is a compulsory member.
Is a syndic mandatory?
Yes. Every association of co-owners is legally required to appoint a syndic. The syndic manages the shared finances, carries out the decisions of the general meeting and represents the association legally.
The syndic can be a professional manager or one of the co-owners.
Does a syndic always have to be a professional?
No. The choice between a professional syndic and an owner-syndic often depends on the size and complexity of the building. In larger and more complex buildings a professional syndic is strongly recommended, as they usually have more expertise and experience for complex management.
In smaller buildings with limited common areas, a co-owner can act as a voluntary syndic. That can save costs, but it also takes time and knowledge, and a lack of expertise can be a pitfall.
May the owner of an investment property pass common costs on to tenants?
Yes, but under clear conditions. The owner of an investment property may pass common costs on to their tenants, provided this is explicitly included in the lease and it concerns costs that may legally be charged to the tenant.
These are usually costs related to the use of the building, such as electricity of the common areas, cleaning service, maintenance of the lift or garden, or minor repairs. Structural repairs or major investment works remain the owner's responsibility.
Where there is no official owners' association or deed of base, the owner must apply an objective and defensible distribution key themselves, for example by surface area, use or number of occupants. The statement must be transparent and verifiable.
What is settled when an apartment is sold?
On a sale, outstanding common costs and the working capital are settled pro rata on the date of the notarial deed, usually through the notary. The notary also requests information from the syndic about any debts of the seller to the association, ongoing or planned works, decisions of the general meeting and the state of the reserve fund.
For the buyer it is also essential to check before the compromise how large the existing reserve fund is. A healthy reserve fund limits financial surprises; a low reserve fund can mean substantial extra contributions when future works arise.
Can a tenant make decisions within the owners' association?
No. Only owners are members of the association and may vote at the general meeting. The tenant must, however, comply with the co-ownership rules, including the internal rules (ROI) where these apply in the building.
What majority is needed to approve works?
Not all decisions are taken by the same majority. Ordinary decisions usually require 50% + 1. For important works a 2/3 majority often applies. Far-reaching changes may require 4/5 or unanimity, depending on the type of decision.
Is a reserve fund mandatory and can it be waived?
Yes. An owners' association is legally required to build up a reserve fund. This is provided for in co-ownership law, included in Book 3 of the Civil Code, and serves to finance future major works (such as roof or facade) so that owners are not suddenly faced with high one-off contributions.
In principle a minimum annual build-up is provided for. The general meeting can, however, decide by a 4/5 majority not to build a reserve fund or to build a lower one. That option exists regardless of the number of units. In a building with two owners this means both owners must agree.
Who pays for approved works when an apartment is sold?
Under co-ownership law the date of the general meeting's decision is in principle decisive. The co-owner who owns the property at the moment the general meeting approves the works or the extraordinary contribution is legally liable to pay, even if the actual call for funds or invoice only follows later.
In concrete terms: if works or a capital call were approved before the notarial deed, they are in principle borne by the seller. If they are approved after the deed, they are borne by the buyer.
The parties can deviate from this contractually in the compromise. That is why it is important to have recent general meeting reports and the financial situation of the association analysed before signing.
What if the buyer is given a proxy to attend a general meeting between the compromise and the deed?
Between the compromise and the notarial deed the seller remains the legal owner and therefore a member of the association. If the seller gives the buyer a proxy to vote, the buyer legally votes on behalf of the seller. That proxy in itself changes nothing about the main legal rule on who is legally liable.
In practice, however, you can set this out clearly in the compromise. It is then often explicitly stipulated that all decisions taken between the compromise and the deed, and their financial consequences, are borne solely by the buyer.
Sources and useful information
Would you like to read the original regulations and explanations yourself? Here are two reliable starting points often used for questions about co-ownership, association documents and rental costs.
Questions about your co-ownership or statement?
We analyse your syndic statement, the deed of base and the financial situation of the owners' association, whether you are renting, letting, buying or selling. Get in touch for a clear answer.
