| Fachwort |  |  | 
  | Deutsch | lasting | Grundwort | fehlt | 
	| Fachbebiet | fehlt | Trennung: | lasting | 
  	| Inhalt | fehlt | Status: |  | 
  | Worttyp | fehlt | 
  |  | BGB 559. 1 If the lessor has carried out construction measures that increase the utility value of the leased property with lasting effect , improve general living conditions permanently or lead to savings of energy or water with lasting effect ( modernisation ) , or if he has carried out other construction measures due to circumstances for which he is not responsible , then he may increase the annual rent by 11 per cent of the costs spent on the dwelling . | 
|  | BGB 593. 1 If , after the usufructuary lease is entered into , the circumstances that were decisive for the determination of the performance under the lease change with lasting effect in such a way that the mutual duties are in a gross disparity to each other , then each party to the contract may demand an amendment of the lease , with the exception of the duration of the lease . If , as a result of the cultivation of the leased property by the lessee , its income improves or deteriorates , then , to the extent not otherwise agreed , an amendment of the lease may not be demanded . | 
|  | Section 624 Notice period in the case of contracts lasting more than five years | 
|  | BGB 651l. 1 The provisions below apply to a package travel contract dealing with a stay of an exchange student with a host family in another state ( host country ) , lasting at least three months and coupled with regular attendance at a school . They only apply to a package travel contract dealing with a shorter exchange student stay ( sentence 1 ) , or with a stay with a host family in the host country coupled with the organised conduct of a traineeship , if this has been agreed . | 
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