{"entry-date":"2026-06-10","start-date":"1950-05-22","end-date":"","entity":11500220,"name":"Development within the curtilage of a dwellinghouse","dataset":"permitted-development-right","typology":"category","reference":"I1-1950","prefix":"permitted-development-right","organisation-entity":600001,"geometry":"","point":"","quality":"some","notes":"None","description":"The enlargement, improvement or other alteration of a dwellinghouse so long as the cubic content of the original dwellinghouse (as ascertained by external measurement) is not exceeded by more than 1,750 cubic feet or one-tenth whichever is the greater, subject to a maximum of 4,000 cubic feet; provided that the erection of a garage, stable, loosebox, or coach-house within the curtilage of the dwellinghouse shall be treated as the enlargement of the dwellinghouse for the purposes of this permission.","documentation-url":"https://www.legislation.gov.uk/uksi/1950/728/contents/made","permitted-development-right-part":"1","permitted-development-right-class":"I"}