Apartment with unauthorised alterations: check owners association consent, building file, rollback risk, warranty and retention before signing.
BRANDAUER Rechtsanwälte
Salzburg law firm for real estate, property and corporate law
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Buying an apartment with unauthorised alterations is not merely a question of appearance. A removed wall, relocated service line, enclosed balcony or changed layout may affect the owners’ association, the building-authority file and the permitted use of the apartment.
Before signing, the building-authority file, original and current plans, owners’ association resolutions or consents, valuation documents, current photographs and specific seller statements must be read together. This shows whether common parts are affected, an authority matter remains open or the alteration may have to be removed or restored.
The article separates owners’ association consent, the building-authority position and contractual warranty. The decisive facts are the specific alteration, the affected building part and the records available before signing.
This quick check separates the document review from the contract safeguards for the specific alteration.
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The records should show which part was changed, whether common parts are affected and whether consent or an authority clarification is documented.
Request the building-authority file, plans, owners’ association consent, resolutions, valuation documents, photos and seller statements first. Only then can it be assessed whether the existing alterations affect price, use or escrow settlement in concrete terms.
Do not sign a binding offer while the basis remains open.
Compare the contract with the actual plan and the documented consent position. The clause should identify who handles any outstanding clarification and which records are needed before escrow release.
Warranty questions also require a combined view of the assurance, the buyer’s knowledge and the concrete deviation from the agreed condition.
If owners’ association consent or the authority position remains unclear, the contract should identify the alteration and the consequence of an unfavourable result. This may require a seller assurance, condition, retention or restoration and cost clause.
One alteration may raise separate questions for the owners’ association, the building authority and the seller. Association consent does not automatically settle the authority position.
The actual condition must also match the plan, valuation documents and contract description. A changed layout or intervention in common parts cannot be assessed from the listing alone.
Before handover, open points should be documented and allocated in the evidence and the contract. Later, the first question is what was agreed, disclosed and taken over.
The building-authority file should be read with plans, completion records and current condition. The ownership agreement, resolutions, consent statements and valuation documents are equally important.
Current photographs and a plan comparison help identify whether the apartment differs from the records. The property manager may also hold minutes or correspondence about consent.
Related review points are covered in Renovation plans after purchase.
The overview separates the condition, consent, authority and contract questions.
| Point | Evidence | Risk without review |
|---|---|---|
| Building authority File, plans and decisions | Lawful status remains unclear | |
| Owners’ association Resolution or consent | Use or restoration becomes disputed | |
| Actual condition Photos, measurement and plan | Object differs from records | |
| Contract Assurance, costs and retention | Restoration or claim is harder to enforce |
The concrete assessment depends on the property, documents and draft contract.
Do not confuse association consent with the building-authority position: A general inspected-as-seen clause answers neither whether the owners’ association consented nor who handles an open authority issue or restoration.
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The contract should describe the alteration precisely enough to identify the room, building part and plan status. It should also state who handles an open clarification and who bears restoration costs.
The timing of evidence and purchase-price maturity can be decisive. If records are missing, the contract should address documentation, cooperation and consequences before escrow release.
The timing of evidence and payment is explained in the article on purchase price maturity. Warranty claims then depend on the contract, disclosure and the concrete deviation.
Not automatically. The building-authority records, actual condition and permitted use must also be checked.
The contract should allocate restoration work, costs and cooperation specifically. A general inspected-as-seen clause is not enough.
That depends on disclosure, contract wording, assurances and the concrete difference from the agreed condition. The alteration and records should be documented before signing.
Further content for review before signing.
Further content for review before signing.
Further content for review before signing.
Further content for review before signing.
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When buying property, the contract and the land register decide. Call us directly or send an email, callback within one business day.
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