Practical guide
Managing a condominium with very different units
A condominium that combines apartments, offices, shops and garage units cannot be run on a single ownership table and a single expense split. Each category of unit uses shared assets differently: a ground floor shop rarely needs the lift, a garage owner has no interest in the residential facade. Italian civil law already provides the right tool, the differentiated use table, but it has to be built correctly and applied consistently, expense by expense. This guide explains how to organize multiple tables, separate general from specific expenses, and what to look for in management software so bookkeeping does not fall back on manual calculations at every statement.
Why a single ownership table is not enough
The general ownership table, required under article 68 of the implementing provisions of the Italian Civil Code, records the proportional value of each unit relative to the whole building and is the base for general conservation expenses, roof and structure above all. Article 1123 of the Civil Code, in its second and third paragraphs, sets a different rule whenever shared assets or services are used differently by different units: in that case expenses are split according to actual use, not the general ownership share.
In a building with apartments, offices, shops and garages this distinction is very concrete: the lift is mainly used by residents on upper floors, the ground floor shop often does not use it at all, the garage has its own gate and access that offices never touch. Applying the general table to every one of these items means charging someone for a service they do not use, which exposes the resolution to a legal challenge.
Building differentiated use tables
Whenever there is an objective difference in how units use a shared expense, that expense can have its own dedicated table, separate from the general ownership table.
- Stairs and lift table: usually a mixed criterion, partly based on unit value and partly on floor height, following the approach set out in article 1124 of the Civil Code for stairs; ground floor units with no internal access are excluded or pay a reduced share.
- Central heating table: where still present, follows consumption criteria and thermal need shares, kept separate from the general ownership shares.
- Garage table: a subset of owners, often with its own table for cleaning, lighting and gate maintenance, independent from the rest of the building.
- Commercial units table: when shops and offices have an independent street entrance, concierge, stair cleaning and lift expenses can be reduced or zeroed for those units, while facade and structural expenses shared by everyone remain unchanged.
Resolutions and bylaws: where unanimity is needed and where a majority suffices
Approving or amending the general ownership table requires, under article 69 of the implementing provisions, the qualified majority set for major changes only in case of error or an actual alteration of unit values; adopting the legal differentiated use criteria under article 1123 does not require unanimity, because it does not change ownership shares but applies a splitting criterion already set by law.
In practice it is still worth formalizing everything in the condominium bylaws: which expenses follow which table, how mixed-use or reclassified units are treated, how shares are updated after a unit is split or merged. Clear bylaws reduce disputes at meetings and give the property manager a single reference for every split.
What to look for in software for mixed-use condominiums
With several tables active at once, manual calculation becomes a source of errors at every financial statement. Software such as AmministraPro manages multiple ownership tables on the same building record, assigns each expense to the correct table, and automatically calculates each unit's share based on its actual participation, so a shop with no internal access is not charged for lift maintenance.
Other useful features in these settings include separate handling of expenses for commercial and residential areas, the ability to link more than one table to a mixed-use unit, and automatic statements that show each owner exactly which criterion was applied to each line item. Anyone comparing management software can check the features and pricing to see whether the chosen plan covers the number of tables and units in their building.
Frequently asked questions
Is unanimous consent needed to adopt different tables for shops, offices and apartments?
No, not when the criterion applied comes directly from article 1123 of the Civil Code on differentiated use of shared assets. In that case ownership shares are not being changed, a splitting criterion already set by law is simply being applied, so an ordinary meeting majority is enough. Unanimity or a qualified majority is instead required to correct errors in the general ownership table or to introduce conventional criteria different from the legal ones.
Does a shop with its own street entrance have to contribute to lift expenses?
If the shop has no internal access to the building and therefore cannot use the lift, case law tends to exclude it from that specific expense under the differentiated use criterion of article 1123. It remains obliged to contribute to expenses for conserving the shared structure, such as the roof and facades, which concern the building as a whole regardless of actual use.
How should a garage bought together with an apartment but with separate access be handled?
The garage can have its own ownership table for expenses specific to the parking area, such as cleaning, lighting and gate maintenance, kept separate from the general table that applies to the apartment. If the two units are registered separately with the land registry, the property manager must keep them distinct when splitting general expenses too, later combining the amounts owed by the same owner for both units into a single personal statement.
Can management software automatically calculate multiple ownership tables for the same condominium?
Yes, software built for professional condominium management such as AmministraPro allows several tables to be loaded on the same building record and each expense item to be assigned to the correct table, automatically calculating each unit's share. This avoids the typical manual calculation error where an expense is mistakenly split using the general table instead of the differentiated use criterion set for that specific item.
What happens if a unit changes use, for example from a shop to a residence?
A change of use does not automatically change ownership shares, which remain tied to the unit's value, but it can affect differentiated use criteria: a unit that turns from a shop into a residence with internal access starts using the lift and must be included in that split from that point on. It is good practice to update the building records promptly and report the change at a meeting to avoid disputes over later statements.
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