What a syndic costs in Belgium, and when volunteering pays off

Belgian law sets no tariff for a syndic's fees. The prices Belgian syndic firms and comparison sites published in August 2026 run from 15 to 30 euros per lot per month, with a minimum charge of 150 to 300 euros a month for small buildings. A ten-flat co-ownership therefore pays roughly 1,800 to 3,600 euros a year.

Ten flats, an entrance hall, a lift and no communal heating: that co-ownership pays around 250 euros a month for its management, or 3,000 euros a year. Nobody in the building could say precisely what the figure buys, and that is the real problem. The Civil Code only requires the fee to be set out in a written contract (article 3.89 § 1, official text in French), so every syndic sets their own price. Within the published range, one firm quoted 18 to 28 euros between seven and fifteen lots and 13 to 24 above sixteen.

What moves the invoice

Three factors explain most of the variation. Size first: the more lots, the lower the cost per lot, which is exactly why buildings of three to six flats pay proportionally the most. Then the equipment (lift, communal heating, parking, garden), because each one adds contracts, inspections and potential claims.

The arithmetic makes the squeeze on small buildings obvious. The middle column applies the published 15 to 30 euro range per lot; the next one is the minimum monthly charge:

Ten lots is the tipping point. Below it a co-ownership pays a floor that no longer tracks its size, so four flats carry an invoice built for six or eight.

The third factor is less visible: the state of the building. A block entering major works occupies the syndic for months, and that shows up sooner or later in the fee or in the extras billed on top. So always compare quotes expressed the same way, per lot, per month, excluding VAT and on an identical annual package, because that is the only ground on which two proposals can genuinely be set side by side. An attractive rate that excludes the annual general meeting is not an attractive rate.

What the standard fee almost never covers

The syndic's contract must list the services covered by the flat fee and the additional services with their price, and anything not on the list cannot be charged without a decision of the general meeting (article 3.89 § 1). Read that second list before signing, and check how these items are treated:

• Additional general meetings beyond the annual one
• Supervising building works and handling significant insurance claims
• The information and documents required when a lot is sold, which the law charges to the selling owner (article 3.94 § 4)
• Reminders and recovery of unpaid charges
• Call-outs outside office hours and emergencies

Note: the contract between the association of co-owners and the syndic must be in writing, including where the syndic is a co-owner. The mandate lasts three years at most, and each renewal requires an express decision of the general meeting.

The volunteer syndic: what it saves, and what it does not remove

In a six-lot building, replacing a professional syndic with a willing co-owner frees up the whole minimum charge, 1,800 to 3,600 euros a year at the published rates, often enough to start funding the reserve properly.

Volunteering, however, removes no legal obligation. The association must still keep accounts (simplified below twenty lots, see keeping the co-ownership accounts yourself), convene the meeting in the proper form, hold two separate accounts in its own name and insure the liability of its syndic.

Every syndic, professional or volunteer, must hold civil liability insurance for the role; where the mandate is unpaid, the association of co-owners pays the premium (article 3.89 § 5, 8°). The mandate follows the same rule for everyone: three years maximum, renewable by express decision. A volunteer appointed "for as long as it takes" has not been properly appointed.

On the tooling side, Vecinly replaces the professional syndic's online portal (documents, accounts, meeting notices) and publishes its pricing, so the alternative can be costed before the meeting.

Putting the mandate out to comparison without a falling-out

Comparing is not dismissing. A co-ownership can request three quotes, present them at the general meeting and still reappoint its current syndic. Put the item on the agenda of the annual meeting, with the quotes attached to the notice; a comparison improvised on the night never produces a decision.

If the meeting leans towards self-management, prepare the handover: the outgoing syndic must pass the full management file to the successor within thirty days of the end of the mandate (article 3.89 § 5, 7°), as the guide to the volunteer syndic in Belgium sets out.

Ask for the detail of what is included, add up the additional services billed over the last two years, and raise the volunteer question openly if the building is small and quiet.

Updated September 2026. This article is for information only and does not constitute legal advice.