Check your Contract to Sell if there are provisions on penalties in case of breach. Yun po ang mangingibabaw na rule sa transaction nyo. If ever the breach of contract was committed without any valid or legal reason, the one committing the breach of contract may be held liable for damages.
Supposing you suffered damages because of the breach, then pwede po kayo mag file ng civil case for damages against the developer. Yun nga lang, if the claim is for actual damages lang, there should be actual damages incurred.