http://www.legislation.gov.uk/uksi/2021/428/article/12The Town and Country Planning (General Permitted Development etc.) (England) (Amendment) Order 2021enTOWN AND COUNTRY PLANNING, ENGLANDStatute Law Database2026-03-25Expert Participation2021-04-21 This Order amends, primarily, the Town and Country Planning (General Permitted Development) (England) Order 2015 (“the GPDO”). The GPDO provides, for the purposes of section 59 of the Town and Country Planning Act 1990 (c. 8), for the granting of permission for certain classes of development without the requirement for a planning application to be made under Part 3 of that Act. The classes of permission, together with their accompanying conditions, limitations and restrictions, are set out in Schedule 2 to the GPDO. 12 1 Part 20 (construction of new dwellinghouses) of Schedule 2 is amended as follows— a in paragraph A.1(a) (development not permitted) of Class A (new dwellinghouses on detached blocks of flats), after “Class M,” insert “MA,”; b before each of the provisions of Part 20 listed in paragraph (2) insert— za the permission to use the building as a dwellinghouse has been granted only by virtue of Class MA of Part 3 of this Schedule; . 2 The provisions mentioned in paragraph (1)(b) are— a paragraph AA.1(a) (development not permitted) of Class AA (new dwellinghouses on detached buildings in commercial or mixed use); b paragraph AB.1(a) (development not permitted) of Class AB (new dwellinghouses on terrace buildings in commercial or mixed use); c paragraph AC.1(a) (development not permitted) of Class AC (new dwellinghouses on terrace buildings in use as dwellinghouses); d paragraph AD.1(a) (development not permitted) of Class AD (new dwellinghouses on detached buildings in use as dwellinghouses). 3 In paragraph B(2)(c) (procedure for applications for prior approval under Part 20), after “indicating” insert “the total floor space in square metres of each dwellinghouse,”. Art. 12 in force at 21.4.2021, see art. 1(1)