Purchaser's Obligation to Verify Zoning Compliance Precludes Contract Withdrawal

A dispute arose when a purchaser, having signed a preliminary contract to buy property, later refused to proceed with the final sale, citing the property's alleged lack of compliance with urban planning regulations regarding the existence of an approved septic system. The court of appeal upheld the lower court's decision, finding that the purchaser had a duty to verify the planning regulations prior to signing the preliminary contract and could not unilaterally withdraw from the agreement based on an issue that was either discoverable through due diligence or already known, thereby affirming the validity of the commitment and the corresponding liability for breach of contract due to the refusal to execute the final deed.