The court may make an order requiring the contract-holder under an occupation contract to give up possession of the dwelling only on one or more of the grounds in—
section 157 (breach of contract);
section 160 (estate management);
section 165 (contract-holder's notice: secure contracts);
section 170 (contract-holder's notice: periodic standard contracts);
section 178 (landlord's notice: periodic standard contracts);
section 181 (serious rent arrears: periodic standard contracts);
section 186 (landlord's notice in connection with end of fixed term);
section 187 (serious rent arrears: fixed term standard contracts);
section 191 (contract-holder's notice: fixed term standard contracts);
section 199 (landlord's notice: fixed term standard contracts).
Where the landlord is required to give the contract-holder a possession notice, the court may not make an order for possession on a ground that is not specified in the landlord's possession notice.
But the court may allow the ground (or grounds) specified in the possession notice to be altered or added to at any time before the court makes an order for possession.