Notaries and legal reviewers: who does what when buying in Zurich?

Article 216(1) CO requires a property purchase contract to be publicly notarised. In Zurich, cantonal notarial offices carry out this task under cantonal notarial legislation. Notarisation establishes formal validity; ownership can then be registered under Articles 656 and 657 CC. Without this formal step, even a carefully drafted purchase agreement does not achieve the intended legal effect.

The notary is neutral towards both parties. The notary verifies identity, capacity, authority to represent a party and, where relevant, spousal consent for the family home under Article 169 CC. The contract is read, questions are answered, the transaction is authenticated and the transfer is submitted to the land register. The notary also coordinates payment through the notarial office. The objective is a formally correct transaction capable of registration, not an agreement optimised for one side.

Neutrality limits the notary’s role. The notary does not provide a buyer’s negotiation strategy or propose clauses solely to improve one party’s position. Nor does the notary determine whether the price reflects market value, the warranty exclusion suits the buyer or the handover date fits the buyer’s financing. Discovering an unfavourable provision at the signing appointment leaves little room for negotiation, even if postponement remains possible.

Property law specialists act for one party, here the buyer. They read and assess the draft, identify one-sided clauses on warranties, delay, assumed liabilities or easements, propose specific amendments and support negotiations. They may also assess the final version before signing. Information obtained through the engagement remains confidential. The particular forms of support depend on the agreed package.

Timing matters. A review is most useful once a draft exists and changes are still possible. Allowing three to five working days before notarisation gives time to assess the text, discuss concerns, formulate amendments and coordinate with the seller and notary. A last-minute review is less effective. After notarisation, the contract is already binding; changes generally require a supplemental agreement or legal proceedings.

The two roles complement each other. The notary handles form, authentication and land-register completion; the buyer’s legal reviewer considers the substance in the buyer’s interests. The reviewer cannot replace notarisation, and the notary cannot replace partisan advice. A clear distinction avoids assuming that someone has already checked whether the contract meets your individual needs.

Zurich notarial fees are governed by the cantonal tariff and linked to the transaction value. Buyers and sellers commonly share notarisation and ownership-registration costs equally, although they can agree otherwise. Independent legal-review fees are agreed separately, usually hourly or as a fixed fee according to complexity. For a focused review, the cost should be considered against the financial exposure of the transaction.