GPDO-1 Which sort of development are you planning ? If it is not listed you will need to refer to your planning authority. Developments that fall into multiple classes (extensions with soil pipes) need to satisfy the limits in both sections to be permitted development http://www.pas.gov.uk/pas/core/page.do?pageId=87216 extensions to dwellings (houses, bungalows etc but not flats)############A2.0.0.q1 extensions and alterations to the roof.B1.e.0.q1 minor changes to a roof.C1.a.0.q1 porches. D1.a.0.q1 outbuildings, enclosures, pools, oil and LPG containers and structures necessary for the keeping of pets, poultry, bees etc. E1.f.0.q1 hard surfaces (new or replacement) of more than 5 square metres. F1.a.0.q1 chimneys, flues and soil and vent pipes on a dwelling house.G1.b.i.q1 installation, alteration or replacement of microwave antenna (eg satellite dishes)H1.d.i.q1 A1.a.0.q1 Excluding the original dwelling, will the development result in more than 50% of the curtilage having been built on ? This test includes outbuildings, garages etc. For many properties, 'curtilage' is the same as the garden boundary. For previously divided larger plots and rural contexts further advice is available on the weblink. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.b.0.q1 A1.b.0.q1 Will any part of the development be higher than the existing roof ? This test includes any part of the development (pipes etc) that might be higher than the highest part of the existing roof http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.c.0.q1 A1.c.0.q1 Will the eaves of the development be higher than the eaves of the existing dwelling ? Information on how to answer this question is on the weblink. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.d.ii.q1 A1.d.ii.q1 Will the development project beyond the principal or side elevations of the original dwelling and face a highway? The principal elevation is often the front of the house, but some houses have principal elevations to the side or rear. It can be thought of as "the prettiest face" of a building. Corner plots will have highways on more than one side. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.g.0.q1 A1.e.i.q1 Is the development to the rear of the original dwelling ? http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA1.e.i.q2 NoA1.h.i.q1 A1.e.i.q2 Is the development a single storey extension ? http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA1.e.i.q3 NoA1.f.i.q1 A1.e.i.q3 Will the development extend more than 4 metres (detached houses) or 3 metres (other houses) beyond the original dwelling? A detached house is one that does not share a party wall with a neighbouring property. This measurement is the length out from the original wall. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.e.ii.q1 A1.e.ii.q1 Will the development be more than 4 metres in height ? This measurement is to be taken externally to the highest point (usually the ridge height) http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.i.i.q1 A1.f.i.q1 Will the development extend further than 3 metres beyond the rear wall ? http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.f.ii.q1 A1.f.ii.q1 Will the development be within 7 metres of the boundary opposite the rear wall ? This measurement is to any point on the boundary. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.i.i.q1 A1.g.0.q1 Will the eaves height of the development exceed 3 metres and be within 2 metres of the boundary ? Eaves height is measured externally to the ground. Where the site slopes, the longest measurement is to be used. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.e.i.q1 A1.h.i.q1 Will the development exceed 4 metres in height ? This measurement is to be taken externally to the highest point (usually the ridge height) http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.h.ii.q1 A1.h.ii.q1 ((Will the development have more than one storey ? Side extensions of more than one storey require consent. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.h.iii.q1 A1.h.iii.q1 Will the development be wider than half the width of the original house ? Side extensions must not extend the overall width of the original house by more than 50% http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.i.i.q1 A1.i.i.q1 Will the development create a veranda, balcony or raised platform ? These require consent to ensure privacy issues are resolved. "Raised platforms" in this context are higher than 30cm. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA.perm.dev A2.0.0.q1 Are you in a conservation area ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueA2.a.0.q1 FalseA2.0.0.q1.1 A2.0.0.q1.1 Are you in an area of outstanding natural beauty (AONB) ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueA2.a.0.q1 FalseA2.0.0.q1.2 A2.0.0.q1.2 Are you in a site of special scientific interest (SSSI) ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueA2.a.0.q1 FalseA2.0.0.q1.3 A2.0.0.q1.3 Are you in a National Park ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueA2.a.0.q1 FalseA2.0.0.q1.4 A2.0.0.q1.4 Are you in the Broads ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueA2.a.0.q1 FalseA2.0.0.q1.5 A2.0.0.q1.5 Are you in a world heritage site ? (technical note - using the 'AncientMonument' schema) Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueA2.a.0.q1 FalseA1.a.0.q1 A2.a.0.q1 Will the development include the cladding of the house with stone, artificial stone, pebble dash, render, timber, plastic or tiles; Exterior cladding in controlled areas requires consent. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA2.b.0.q1 A2.b.0.q1 Will the development project beyond the side elevation of the original dwellinghouse ? Side extensions in controlled areas require consent. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA2.c.0.q1 A2.c.0.q1 Will the development be at the rear and have more than one storey ? Rear two storey extensions in controlled areas require consent. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 YesA.not.pd NoA1.a.0.q1 B1.a.0.q1 Would any part of the development be higher than the highest point of the existing roof ? The highest point of a roof is normally the ridge - chimneys are excluded from this test http://www.pas.gov.uk/pas/core/page.do?pageId=87225 YesB.not.pd NoB1.b.0.q1 B1.b.0.q1 Will the development extend the roof on the principal elevation that fronts a highway ? The principal elevation is normally (but not always) the facade of the building to the front. http://www.pas.gov.uk/pas/core/page.do?pageId=87225 YesB.not.pd NoB1.c.i.q1 B1.c.i.q1 Is the dwelling terraced ? Terraced houses share party walls. http://www.pas.gov.uk/pas/core/page.do?pageId=87225 YesB1.c.i.q2 NoB1.c.ii.q1 B1.c.i.q2 Will the development increase the original roof space by more than 40 cub.m ? This figure includes all previous extensions to the roof. There is a calculator to help you measure this volume here . http://www.pas.gov.uk/pas/core/page.do?pageId=87225 YesB.not.pd NoB1.d.i.q1 B1.c.ii.q1 Will the development increase the original roof space by more than 50 cub.m ? This figure includes all previous extensions to the roof. There is a calculator to help you measure this volume here . http://www.pas.gov.uk/pas/core/page.do?pageId=87225 YesB.not.pd NoB1.d.i.q1 B1.d.i.q1 Will the development provide a veranda, balcony or raised platform ? These require consent to ensure privacy issues are resolved. "Raised platforms" in this context are higher than 30cm. http://www.pas.gov.uk/pas/core/page.do?pageId=87225 YesB.not.pd NoB.perm.dev B1.e.0.q1 Are you in a conservation area ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueB.not.pd FalseB1.e.0.q1.1 B1.e.0.q1.1 Are you in an area of outstanding natural beauty (AONB) ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueB.not.pd FalseB1.e.0.q1.2 B1.e.0.q1.2 Are you in a site of special scientific interest (SSSI) ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueB.not.pd FalseB1.e.0.q1.3 B1.e.0.q1.3 Are you in a National Park ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueB.not.pd FalseB1.e.0.q1.4 B1.e.0.q1.4 Are you in the Broads ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueB.not.pd FalseB1.e.0.q1.5 B1.e.0.q1.5 Are you in a world heritage site ? (technical note - using the 'AncientMonument' schema) Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueB.not.pd FalseB1.a.0.q1 C1.a.0.q1 Will the alteration extend beyond the slope of the roof by more than 150mm ? This limit is measured in the perpendicular from the the external surface of the original roof http://www.pas.gov.uk/pas/core/page.do?pageId=87227 YesC.not.pd NoC1.b.0.q1 C1.b.0.q1 Would any part of the proposal be higher than the highest point of the existing roof ? http://www.pas.gov.uk/pas/core/page.do?pageId=87227 YesC.not.pd NoC.perm.dev D1.a.0.q1 Will the ground area (measured externally) of the structure exceed 3 square metres ? http://www.pas.gov.uk/pas/core/page.do?pageId=87229 YesD.not.pd NoD1.b.0.q1 D1.b.0.q1 Will any part of the porch be more than 3 metres above ground level ? Measured externally at the highest point http://www.pas.gov.uk/pas/core/page.do?pageId=87229 YesD.not.pd NoD1.c.0.q1 D1.c.0.q1 Will any part of the porch be within 2 metres of any boundary of the curtilage of the dwellinghouse with a highway. This requires porches to be set back from the boundary with the highway by at least 2 metres http://www.pas.gov.uk/pas/core/page.do?pageId=87229 YesD.not.pd NoD.perm.dev E1.a.0.q1 Excluding the original dwelling, will the development result in more than 50% of the curtilage having been built on ? This coverage includes already existing outbuildings, enclosures, containers etc. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.b.0.q1 E1.b.0.q1 Is any part of the development on land forward of a wall forming the principal elevation of the original dwellinghouse ? The principal elevation is often the front of a building. Consent is required to develop in the front garden. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.d.i.q1 E1.c.0.q1 Will the development have more than one storey ? http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.a.0.q1 E1.d.i.q1 Will the development have a dual-pitched roof in excess of 4 metres ? This is measured to the highest point - for a dual pitched roof this is the ridge height. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.d.ii.q1 E1.d.ii.q1 Will the development have a roof more than 2.5m within 2 metres of the boundary ? See web link for diagrams explaining this relationship. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.d.iii.q1 E1.d.iii.q1 Will the development have a roof more than 3 metres in any other case This limit is for single pitch, flat and more complicated roof shapes (but check also the eaves limit) http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.e.0.q1 E1.e.0.q1 Will the eaves of the development be higher than 2.5m ? When measured at the highest point to ground level. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.g.0.q1 E1.f.0.q1 Will the development take place within the curtilage of a listed building ? Listed building curtilages may not be obvious. You might need the advice of your planners if you live on the site of a listed building. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE3.0.0.q1 E1.g.0.q1 Will the development include the construction or provision of a veranda, balcony or raised platform ? These require consent to ensure privacy issues are resolved. "Raised platforms" in this context are higher than 30cm - therefore most decking does not fall into this category. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE.perm.dev E1.i.0.q1 Is the development for a container - oil or LPG ? http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE1.i.0.q2 NoE1.c.0.q1 E1.i.0.q2 Will the container contain more than 3,500 litres ? http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.a.0.q1 E2.0.0.q1 Are you in a conservation area ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueE2.0.0.q2 FalseE2.0.0.q1.1 E2.0.0.q1.1 Are you in an area of outstanding natural beauty (AONB) ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueE2.0.0.q2 FalseE2.0.0.q1.2 E2.0.0.q1.2 Are you in a site of special scientific interest (SSSI) ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueE2.0.0.q2 FalseE2.0.0.q1.3 E2.0.0.q1.3 Are you in a National Park ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueE2.0.0.q2 FalseE2.0.0.q1.4 E2.0.0.q1.4 Are you in the Broads ? Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueE2.0.0.q2 FalseE2.0.0.q1.5 E2.0.0.q1.5 Are you in a world heritage site ? (technical note - using the 'AncientMonument' schema) Many local authorities have this type of information online, or you can ask them http://www.pas.gov.uk/pas/core/page.do?pageId=87218 TrueE2.0.0.q2 FalseE1.i.0.q1 E2.0.0.q2 Is there more than 10 sqm of ground covered by buildings, enclosures and containers situated more than 20 metres from the house ? http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE1.i.0.q1 E3.0.0.q1 Are you in a conservation area ? For properties with extended curtilages this is true if any part of the land is within a controlled area. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 TrueE3.0.0.q2 FalseE2.0.0.q1 E3.0.0.q2 Will any part of the development be situated on land between the side of the house and boundary ? http://www.pas.gov.uk/pas/core/page.do?pageId=87231 YesE.not.pd NoE2.0.0.q1 F1.a.0.q1 Is the hard surface between the front of the house and the highway ? http://www.pas.gov.uk/pas/core/page.do?pageId=87233 YesF1.b.0.q1 NoF.perm.dev F1.b.0.q1 Is the surface area larger than 5 metres ? http://www.pas.gov.uk/pas/core/page.do?pageId=87233 YesF1.0.0.q1 NoF.perm.dev F1.0.0.q1 Is run-off water shed into public drainage systems (for example, when it rains) http://www.pas.gov.uk/pas/core/page.do?pageId=87233 YesF.not.pd NoF.perm.dev G1.a.0.q1 Will the development be more than 1 metre above the roof ? This measurement is from the highest part of the roof (normally the ridge height) http://www.pas.gov.uk/pas/core/page.do?pageId=87235 YesG.not.pd NoG.perm.dev G1.b.i.q1 Is the property in a conservation area ? http://www.pas.gov.uk/pas/core/page.do?pageId=87235 TrueG1.b.i.q2 FalseG1.a.0.q1 G1.b.i.q2 Will the chimney or pipe front a highway ? For corner plots this restriction is normally on two sides http://www.pas.gov.uk/pas/core/page.do?pageId=87235 YesG.not.pd NoG1.b.ii.q1 G1.b.ii.q1 Will the chimney or pipe be on the principal or side elevation of the roof ? This will normally mean that alterations to the front and sides of roofs in conservation areas require consent. Some properties have their principal elevation to the rear. http://www.pas.gov.uk/pas/core/page.do?pageId=87235 YesG.not.pd NoG1.a.0.q1 H1.a.i.q1 Will this development result in there being 3 or more antenna within the curtilage of the house ? This count includes antenna fixed to garages or other outbuildings and structures. http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.a.ii.q1 H1.a.ii.q1 Will any of the antenna be longer than 100cm ? If you already have a long antenna, subsequent and smaller antenna will require consent. http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.a.iii.q1 H1.a.iii.q1 If this is the second antenna, will the two together meet the size criteria ? The criteria are :only one of the antennas may exceed 60 centimetres in length; and any antenna which exceeds 60 centimetres in length must not exceed 100 centimetres in length. http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.a.vi.q1 H1.a.iv.q1 Will the installation be on a chimney with an antenna longer than 60 cm ? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.a.i.q1 H1.a.vi.q1 Will the antenna be larger than 35 litres capacity ? The cubic capacity of the dish is available from the manufacturer. http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH.perm.dev H1.b.0.q1 Will the antenna protrude over the highest part of the roof ? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.a.i.q1 H1.c.0.q1 Is the installation to take place on a roof with a chimney ? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH1.c.0.q2 NoH1.b.0.q1 H1.c.0.q2 Is the chimney taller than 60cm ? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH1.c.0.q3 NoH1.c.0.q4 H1.c.0.q3 Will the antenna be more than 60 cm above roof height? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.a.i.q1 H1.c.0.q4 Will the antenna be taller than the chimney? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.a.iv.q1 H1.d.i.q1 Is the property in a conservation area? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 TrueH1.d.i.q2 FalseH1.c.0.q1 H1.d.i.q2 Will the installation face onto and be seen from a highway ? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.d.ii.q1 H1.d.ii.q1 If you are in the Broads, will it be visible from a waterway ? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.d.iii.q1 H1.d.iii.q1 Is the building more than 15 metres high ? http://www.pas.gov.uk/pas/core/page.do?pageId=87237 YesH.not.pd NoH1.c.0.q1 A.not.pd Planning consent is required for this type of development A.perm.dev Planning consent is not required for this type of development, but any alterations to roofs, chimneys and pipes or satellite dishes must be checked under the appropriate class. In addition, there are conditions that need to be fulfilled. Conditions: the materials used shall look similar to the original (except for conservatories); any upper-floor window located in a wall or roof to the side of the house must be obscure glazed, also non-opening unless more than 1.7m above the floor height. The roof pitch should, if possible, match the roof pitch of the original. http://www.pas.gov.uk/pas/core/page.do?pageId=87218 B.not.pd Planning consent is required for this type of development B.perm.dev Planning consent is not required for this type of development, but any alterations to chimneys and pipes should be assessed against the criteria in the other sections of the expert system. In addition, there are conditions that need to be fulfilled. Conditions: the materials used shall look similar to the original; other than hip-to-gable extensions the enlargment should be not less than 20cm from the eaves of the original roof; any upper-floor window located in a wall or roof to the side of the house must be obscure glazed and non-opening unless more than 1.7m above the floor height. http://www.pas.gov.uk/pas/core/page.do?pageId=87225 C.not.pd Planning consent is required for this type of development C.perm.dev Planning consent is not required for this type of development, but any alterations to chimneys and pipes should be assessed against the criteria in the other sections of the expert system. In addition, there are conditions that need to be fulfilled. Conditions: any window located on the roof must be obscure glazed and non-opening unless more than 1.7m above the floor height. http://www.pas.gov.uk/pas/core/page.do?pageId=87227 D.not.pd Planning consent is required for this type of development D.perm.dev Planning consent is not required for this type of development, and there are no specific conditions to meet. http://www.pas.gov.uk/pas/core/page.do?pageId=87229 E.not.pd Planning consent is required for this type of development E.perm.dev Planning consent is not required for this type of development, and there are no specific conditions to meet. Any satellite dishes installed on outbuildings may require permission if they exceed the limits. This class does not permit the creation of habitable rooms. http://www.pas.gov.uk/pas/core/page.do?pageId=87231 F.not.pd Planning consent is required for this type of development, unless the materials used do not shed run-off water into public drains F.perm.dev Planning consent is not required for this type of development. There is more information on how to lay permeable surfaces available. http://www.pas.gov.uk/pas/core/page.do?pageId=87233 G.not.pd Planning consent is required for this type of development G.perm.dev Planning consent is not required for this type of development, and there are no specific conditions to meet. http://www.pas.gov.uk/pas/core/page.do?pageId=87235 H.not.pd Planning consent is required for this type of development H.perm.dev Planning consent is not required for this type of development, subject to these conditions. Conditions: installation should be sited to minimise the appearance and antenna should be removed when no longer required http://www.pas.gov.uk/pas/core/page.do?pageId=87235