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Review of the General Permitted Development Order 1992: Householder Report

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Appendix 4 Case study summaries

Development description

Decision

Reasons/conditions

Now PD?

1. Single storey extension to ground floor flat within 2 storey "4-in-block"

Approved

Removal of PD rights for windows in side elevations to protect neighbour privacy

Yes - PD rights extended to flats

2. side extension and single garage , side extensions to roof to form gables, of one and half storey detached bungalow

Part approved/part refused

Alterations to roof refused as visually detrimental; garage approved subject to use for domestic purposes only and matching external materials.

No - side roof extension beyond existing roof plane

3. Rear extension to ground floor flat within 2-storey building, installation of roof window, erection of fence

Approved

No windows/openings in side elevation, to protect neighbour privacy

Yes - PD rights extended to flats

4. Front and rear extension to detached single storey dwellinghouse, plus single storey garage to side

Approved

Visibility splays for driveway

No - development projecting beyond front building line

5. Front extension to 2-storey semi-detached house, dormer window, fencing, hardstanding

Approved

None

No - development projecting beyond front building line

6. extension to one and half storey house, including formation of roof terrace

Approved

none

No - height of development close to common boundary

7. single storey rear extension to mid-terrace two-storey house, and erection of fence

Approved

Prior erection of screen fencing to protect neighbour privacy, no window /openings in side elevation, to protect neighbour privacy

No - >40% of rear garden developed

8. two storey extension on gable elevation of two-storey house

Approved

No windows at first floor level in side elevation, to protect neighbour privacy; sound insulation in side window, to protect occupants from noise from nearby railway.

No - two storeys close to common boundary

9. two storey extension to two storey end terrace house

Approved

No windows in side elevation, to protect neighbour privacy.

No - 2 storey extension on common boundary

10. single storey extension on rear elevation of 2 storey mid terraced house

Approved

No windows in side elevation, to protect neighbour privacy.

Yes - single storey, within 40% curtilage limit

11. single storey extensions on side and 'rear' (fronting road) elevations of two storey semi-detached house

Approved

None

No - development projecting beyond front building line.

12. porch extension on front, and 'wrap around' gable extension on rear elevations of two storey semi-detached house

Approved

No windows in side elevation, to protect neighbour privacy; external finishes to match existing

No - development projecting beyond front building line.

13. alterations and extensions to detached bungalow, including alterations to roof pitch, part single/part two storey extension on front elevation, front porch, 1.5 storey side extension incl first floor balcony on rear elevation

Approved

Protection of existing trees within curtilage; details of finished floor and road levels; details of visibility splays; samples of external finishes; location of walls and fences; upper floor balcony not approved.

No - upper floor balcony close to common boundary.

14. one/two storey extension, incl garage to side of two-storey semi-detached house

Approved

External materials to match original building; garage to be used for incidental purposes

No - two storey extension close to common boundary

15. upper floor extension to existing garage, located to front of two storey detached dwelling

Refused

Dominate and detract from integrity of original house and be visually intrusive in the area

No - additional storey on front elevation

16. two storey extension to two storey end terraced house

Refused

Overdevelopment, out of keeping with building, breach of established building lines and visually intrusive in the area

No - development projecting beyond front building line.

17. two storey side extension to two storey end terrace house

Refused

Incongruous and bulky addition , detrimental to original character and to wider area

No - development projecting beyond front building line.

18. two storey gable extension and rear conservatory extension to two storey semi-detached house

Refused

Harmful overlooking; insufficient car parking space to the front

No - two storey extension close to common boundary

19. single storey rear extension , plus box dormer window involving 'gabling' of existing hipped roof

Refused

Roof alterations and scale of dormer adversely affect symmetry and visual integrity of house and alter character and amenity of street

No - side roof extension beyond existing roof plane

20. one and half storey 'wrap around' extension to single storey detached house

Refused

Overdevelopment, visually dominant, out of keeping with locality

No - height increase

21. end extension to roof of single storey semi-detached house and formation of flat roofed dormer on rear facing slope.

Approved

None

Yes - <40% alteration to roof

22. rear extension, front window replacement , double garage to rear, hardstanding, to two storey detached house

Approved

Matching external finishes; protection of tree within curtilage

Yes - single storey <40% of curtilage

23. double garage/store/workshop within rear garden ground and hardstanding, for two storey detached house

Approved

Use of outbuildings for domestic purposes only; matching external finishes

No - over one storey close to common boundary

24. Front porch extension , hardstanding, single storey rear extension, roof window in rear slope of mid-terrace two storey house

Approved

Matching external finishes.

No - development projecting beyond front building line.

25. garden shed and oil storage tank in rear garden of two storey mid-terrace house

Approved

None

Yes - <40% of rear garden ground

26. installation of front and rear dormers and gabling of hipped roof, for semi-detached bungalow

Refused

Visually detracts from character and appearance of property and detrimental to wider area

No - side roof extension beyond existing roof plane

27. installation of front and rear dormers and gabling of hipped roof, for semi-detached bungalow

Refused

Visually detracts from character and appearance of property and detrimental to wider area

No - side roof extension beyond existing roof plane

28. installation of front and rear dormers and gabling of hipped roof, for semi-detached bungalow

Refused

Visually detracts from character and appearance of property and detrimental to wider area

No - side roof extension beyond existing roof plane

29. installation of side and rear dormer windows to two-storey semi-detached house

Approved

External cladding of dormers to match roof; obscure glazing on side dormers, to protect neighbour privacy

No - side roof extension beyond existing roof plane

30. two storey gable extension and erection of front wall and gate to two-storey end-terrace house

Approved

No windows or other openings on south gable wall, to protect neighbour privacy

No - two storeys on or close to common boundary

31. formation of rear decking and hardstanding area to two-storey detached house

Approved

None

No - raised terrace on or close to common boundary

32. erection of upper floor side extension on existing side extension of two-storey end-terrace house

Refused

Overdevelopment, out of keeping, breach established building lines, visually intrusive

No - two storey extension on or close to common boundary

33. single storey rear extension and side garage to two-storey semi-detached house

Refused

Dominate and detract from existing building and significant loss of private rear garden; loss of privacy to neighbours

No - >50% development of curtilage

34. installation of front and rear dormers to two-storey end-terrace house

Refused

Visually prominent, out of keeping with surrounding area

Yes - within 40% limit of roof plane development

35. *two-storey extension on front elevation of two-storey detached house with large curtilage

Refused

Harmfully overbearing, unsympathetic and incongruous

Yes - 'front' elevation does not front road or footpath, but golf course; large extension, but insignificant consumption of curtilage

36. two storey side extension to two storey detached house with large curtilage

Refused

Harmfully overbearing, unsympathetic and incongruous

Yes - large extension, but not fronting road and insignificant consumption of curtilage

37. Single storey L-shaped extension on side elevation of single storey house within large curtilage

Approved

Incidental use (given size and scope to be used as separate dwelling)

No - development projecting beyond front building line fronting a road.

38. "Wrap around' single storey extension to side/rear elevation of two-storey semi-detached house

Approved

Obscure glazing to side window in northwest wall, to protect neighbour privacy; no other windows/openings in northwest wall, to protect neighbour privacy; no windows/openings in southeast wall, protect neighbour privacy.

Yes - single storey <40% of curtilage

39. installation of front and rear dormers and gabling of hipped roof, for semi-detached bungalow

Refused

Visually detracts from character and appearance of property and detrimental to wider area

No - side roof extension beyond existing roof plane

40. Rear alterations and extension, including raised decking, to two storey detached house

Approved

Samples of external finishes.

Yes - raised decking not close to common boundary

41. Extension including first floor balcony, to one and half storey detached house

Approved

Sample of external finishes; window details; balcony door finishes;

No - >10% of roof development

42. single storey rear extension to semi-detached two-storey house

Approved

No windows/openings in east elevation, to protect neighbour privacy

Yes - not close to common boundary

43. single storey rear extension to two-storey mid-terrace house

Approved

Kitchen window in northwest elevation to be obscure glazing, and no additional windows/openings in southeast or northwest elevations, to protect neighbour privacy.

Yes - not close to common boundary

44. two-storey side extension and rear decking for two-storey semi-detached house

Approved

Matching external finishes; specific windows to be obscure glass, to protect neighbour privacy; details of proposed privacy screen, to protect neighbour privacy.

No - raised decking on or close to common boundary

45. single storey 'wrap around' side/rear extension to two-storey end-terrace house

Approved

External finishes to match existing

Yes - side extension not close to common boundary

46. roof alteration and double garage for two-storey detached house

Approved

None

Yes - <40% of roof area

47. installation of vent and replacement roof windows for two-storey end-terrace house

Approved

None

Yes

48. dormer windows in front and rear elevations, installation of roof lights, erection of garden shed and heightening of oil storage tank for single storey detached dwelling

Approved

External finishes to match existing

Yes - <40% of roof.

49. new double door within existing ground floor window on ground floor flat within two-storey flatted building

Approved

None

Yes - minor alteration to a flat

50. installation of replacement windows within top floor flat

Approved

None

Yes - minor alterations to a flat

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Page updated: Monday, October 9, 2006