Planning applications in Welwyn Hatfield

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Extensions & alterations
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Showing 50 of 190 applications
6/2026/0943/HOUSE 29 May 2026 Pending

69 Robbery Bottom Lane Welwyn AL6 0UL

Raising the existing roof line incorporating new rooflights, new dormer, external alterations to existing windows and doors and the creation of a new ...

Welwyn Hatfield 29 May 2026
6/2026/0948/HOUSE 29 May 2026 Pending

55 Wood Common Hatfield AL10 0UE

Erection of part single, part two storey rear extension and installation of two windows within the right elevaton.

Welwyn Hatfield 29 May 2026
6/2026/0934/HOUSE 28 May 2026 Pending

2 Lemsford Village Lemsford Welwyn Garden City AL8 7TN

Erection of a single storey front porch extension

Welwyn Hatfield 28 May 2026
6/2026/0932/LAWP 27 May 2026 Pending

169 Bishops Rise Hatfield AL10 9EP

Certificate of lawfulness for the erection of a single storey rear extension

Welwyn Hatfield 27 May 2026
6/2026/0926/HOUSE 26 May 2026 Pending

The Willows Marshmoor Lane Welham Green Hatfield AL9 7HT

Extension of existing residential dwelling

Welwyn Hatfield 26 May 2026
6/2026/0916/HOUSE 22 May 2026 Pending

102 Lemsford Lane Welwyn Garden City AL8 6YP

Erection of single-storey rear and side extension with the installation of three rooflights

Welwyn Hatfield 22 May 2026
6/2026/0911/HOUSE 21 May 2026 Pending

4 Sherrards Mansion Rectory Road Welwyn Garden City AL8 7AY

Erection of single storey rear extension with covered pergola area

Welwyn Hatfield 21 May 2026
6/2026/0904/HOUSE 21 May 2026 Pending

7 Greenfield Hatfield AL9 5HW

Erection of a single storey rear extension, conversion of double integral garage,, covered porch, replacement front dormer and erection of new boundar...

Welwyn Hatfield 21 May 2026
6/2026/0912/EM 21 May 2026 Pending

6 Marsden Road Welwyn Garden City AL8 6XZ

Erection of ground floor side extension and partial first floor side extension

Welwyn Hatfield 21 May 2026
6/2026/0893/HOUSE 20 May 2026 Pending

Windy Ridge 40 Great North Road Welwyn AL6 0PX

Erection of two storey front extension with dormers, alteration to openings

Welwyn Hatfield 20 May 2026
6/2026/0900/LAWP 20 May 2026 Pending

41 Great North Road Welwyn Garden City AL8 7TJ

Certificate of lawfulness for the erection of a hip to gable roof extension, formation of rear dormer, erection of single storey side extension and in...

Welwyn Hatfield 20 May 2026
6/2026/0901/EM 20 May 2026 Pending

21 Broomhills Welwyn Garden City AL7 1RG

Erection of single storey one bedroom annexe

Welwyn Hatfield 20 May 2026
6/2026/0886/EM 19 May 2026 Pending

9 Monks Rise Welwyn Garden City AL8 7NF

New patio decking area and alterations to openings

Welwyn Hatfield 19 May 2026
6/2026/0871/HOUSE 18 May 2026 Pending

13 Birkin Court Welwyn Garden City AL7 3FA

Proposed part single storey rear and side extension with break through, first floor part rear/side infill with internal alterations

Welwyn Hatfield 18 May 2026
6/2026/0874/HOUSE 18 May 2026 Pending

45 Osborne Road Little Heath Potters Bar EN6 1SB

Erection of brick wall, iron railings and iron electric sliding gates to the front of the property and landscaping works

Welwyn Hatfield 18 May 2026
6/2026/0866/EM 18 May 2026 Pending

67 Valley Road Welwyn Garden City AL8 7DR

Reinstate the existing front driveway and erection of a small white-painted timber pedestrian gate installed between the existing laurel boundary hedg...

Welwyn Hatfield 18 May 2026
6/2026/0860/HOUSE 15 May 2026 Pending

16 The Wade Welwyn Garden City AL7 4LG

Erection of a garden room and a single storey rear extension, following demolition of conservatory

Welwyn Hatfield 15 May 2026
6/2026/0863/HOUSE 15 May 2026 Pending

110 Guessens Road Welwyn Garden City AL8 6RS

Erection of a first-floor side extension

Welwyn Hatfield 15 May 2026
6/2026/0864/HOUSE 15 May 2026 Pending

15 Bradmore Way Brookmans Park AL9 7QY

Erection of two storey side and rear extension (resubmission of lapsed consent 6/2022/1846/HOUSE)

Welwyn Hatfield 15 May 2026
6/2026/0855/PN8 14 May 2026 Pending

33 Roe Green Lane Hatfield AL10 0SH

Prior approval for the erection of a single storey ground floor rear extension measuring 8m in depth, 2.92m in height and 2.81m to the eaves

Welwyn Hatfield 14 May 2026
6/2026/0844/HOUSE 13 May 2026 Pending

367 St Albans Road West Hatfield AL10 9RU

Erection of single storey front, side and rear extensions and extension to the existing garage

Welwyn Hatfield 13 May 2026
6/2026/0843/HOUSE 13 May 2026 Pending

57 Briars Lane Hatfield AL10 8EX

Formation of four dormers to front and a rear dormer to facilitate loft conversion

Welwyn Hatfield 13 May 2026
6/2026/0842/HOUSE 13 May 2026 Pending

57 Briars Lane Hatfield AL10 8EX

Erection of a single storey side extension

Welwyn Hatfield 13 May 2026
6/2026/0848/PN8 13 May 2026 Pending

45 Garden Avenue Hatfield AL10 8LL

Prior approval for the erection of a single storey rear extension measuring 5.5m in depth, 3.25m in height and 3m to the eaves following the demolitio...

Welwyn Hatfield 13 May 2026
6/2026/0826/HOUSE 12 May 2026 Pending

28 The Grove Brookmans Park AL9 7RN

Part conversion of garage to form utility room with two rooflights within the roof

Welwyn Hatfield 12 May 2026
6/2026/0828/HOUSE 12 May 2026 Pending

4 Bulls Lane Hatfield AL9 7PD

Erection of a two storey side extension, single storey front extension and single storey rear extension following the demolition of the existing garag...

Welwyn Hatfield 12 May 2026
6/2026/0830/HOUSE 12 May 2026 Pending

14 Holloways Lane Welham Green Hatfield AL9 7NP

Erection of single storey front, side and rear extensions

Welwyn Hatfield 12 May 2026
6/2026/0836/EM 12 May 2026 Pending

307 Knightsfield Welwyn Garden City AL8 7NJ

Erection of single storey rear extension with roof lanterns, covered verandah area, installation of roof lantern to existing side roof and replacement...

Welwyn Hatfield 12 May 2026
6/2026/0831/HOUSE 12 May 2026 Pending

16 Spring Glen Hatfield AL10 8HD

Erection of part single, part two storey rear extension and front extension and rendering to the external elevations

Welwyn Hatfield 12 May 2026
6/2026/0839/EM 12 May 2026 Pending

133 Sweet Briar Welwyn Garden City AL7 3EB

Rear garden landscaping comprising the installation of two louvered aluminium pergolas, a multi-level porcelain terrace, and integrated soft landscapi...

Welwyn Hatfield 12 May 2026
6/2026/0827/HOUSE 12 May 2026 Pending

14 Birch Drive Hatfield AL10 8NX

Erection of part single and part two storey rear extension, two storey side extension and a single storey front porch following demolition of the exis...

Welwyn Hatfield 12 May 2026
6/2026/0829/HOUSE 12 May 2026 Pending

37 The Ridgeway Cuffley Potters Bar EN6 4BB

Erection of single-storey rear extension, two-storey rear extensions and front porch, first-floor rear balcony, replacement rear patio, alterations to...

Welwyn Hatfield 12 May 2026
6/2026/0820/HOUSE 11 May 2026 Pending

17 Claves Crescent Welwyn Garden City AL7 1WN

Erection of single storey rear extension & alterations to openings

Welwyn Hatfield 11 May 2026
6/2026/0815/HOUSE 11 May 2026 Pending

111 Warren Way Digswell Welwyn AL6 0DL

Erection of part single storey, part two storey rear extension with rooflight to ground floor roof, enlarged patio area and ground floor and first flo...

Welwyn Hatfield 11 May 2026
6/2026/0810/EM 8 May 2026 Pending

78 Valley Road Welwyn Garden City AL8 7DP

Erection of a part single-storey rear extension, part first-floor rear extension, and associated alterations to the existing dwelling in order to impr...

Welwyn Hatfield 8 May 2026
6/2026/0806/HOUSE 8 May 2026 Pending

87 Lords Wood Welwyn Garden City AL7 2HG

Erection of single storey rear/side extension & garage conversion

Welwyn Hatfield 8 May 2026
6/2026/0804/HOUSE 8 May 2026 Pending

6 Marsden Road Welwyn Garden City AL8 6XZ

Erection of part single, part two storey side extension

Welwyn Hatfield 8 May 2026
6/2026/0809/LAWP 8 May 2026 Pending

Ponsbourne Manor Hunters Lodge 7 The Ridings Newgate Street Village Hertford SG13 8QX

Certificate of lawfulness for the use of the land for siting a mobile home for use ancillary to the main dwelling

Welwyn Hatfield 8 May 2026
6/2026/0805/EM 8 May 2026 Pending

16 The Wade Welwyn Garden City AL7 4LG

Proposed single storey rear extension and garden room following demolition of conservatory

Welwyn Hatfield 8 May 2026
6/2026/0811/HOUSE 8 May 2026 Pending

114 Tolmers Road Cuffley Potters Bar EN6 4JR

Erection of a single storey rear extension, first floor front extension and a double storey front extension with portico porch and raising the roof to...

Welwyn Hatfield 8 May 2026
6/2026/0793/EM 6 May 2026 Pending

41 Rowans Welwyn Garden City AL7 1NZ

Erection of rear extension plus retrospective permission for a shed

Welwyn Hatfield 6 May 2026
6/2026/0796/EM 6 May 2026 Pending

45 Dawley Welwyn Garden City AL7 1EA

Proposed extension of the existing residential accommodation to provide an accessible WC and shower room. Materials, including white upvc windows, fac...

Welwyn Hatfield 6 May 2026
6/2026/0797/HOUSE 6 May 2026 Pending

111 Wellcroft Road Welwyn Garden City AL7 3JX

Part two storey and part single storey rear extensions, alterations to openings and erection of detached garden room

Welwyn Hatfield 6 May 2026
6/2026/0795/EM 6 May 2026 Pending

8 Dawley Welwyn Garden City AL7 1DZ

Erection of single storey side extension

Welwyn Hatfield 6 May 2026
6/2026/0788/HOUSE 6 May 2026 Pending

40 Reynards Road Welwyn AL6 9TP

Demolition of an existing derelict outbuilding and its replacement with single-storey accommodation ancillary to the main dwelling

Welwyn Hatfield 6 May 2026
6/2026/0781/HOUSE 5 May 2026 Pending

9 Kerdistone Close Little Heath Potters Bar EN6 1LG

Garage conversion and erection of front porch

Welwyn Hatfield 5 May 2026
6/2026/0777/LAWP 5 May 2026 Pending

1 Claves Crescent Welwyn Garden City AL7 1WN

Certificate of lawfulness for a single-storey rear extension and garage conversion

Welwyn Hatfield 5 May 2026
6/2026/0782/HOUSE 5 May 2026 Pending

11 Carleton Rise Welwyn AL6 9RP

Installation of a front portico

Welwyn Hatfield 5 May 2026
6/2026/0784/EM 5 May 2026 Pending

20 Attimore Road Welwyn Garden City AL8 6LW

Removal of an existing shed and associated structures at the rear of the garden and erection of a modest timber garden building with shingle roof for ...

Welwyn Hatfield 5 May 2026
6/2026/0767/PN8 1 May 2026 Pending

19 Holme Road Hatfield AL10 9LH

Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.30m in height and 3.00m to the eaves

Welwyn Hatfield 1 May 2026
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Latest application from Welwyn Hatfield: 3 Jun 2026. We check the council's portal daily.