Planning applications in Welwyn Hatfield

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93 last 14 days
Demolition
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Showing 50 of 93 applications
6/2026/0525/FULL 6 May 2026 Pending

73 Mymms Drive Brookmans Park AL9 7AA

Erection of a new dwelling following demolition of the existing building

Welwyn Hatfield 6 May 2026
6/2026/0613/EM 6 May 2026 Pending

6 Handside Green Welwyn Garden City AL8 6SQ

Erection of part single part double storey rear and side extension to dwelling with fenestration alterations following the demolition and rebuild of g...

Welwyn Hatfield 6 May 2026
6/2026/0639/HOUSE 6 May 2026 Pending

6 Handside Green Welwyn Garden City AL8 6SQ

Erection of part single part double storey rear and side extension, fenestration alterations and erection of garage following demolition of existing g...

Welwyn Hatfield 6 May 2026
6/2026/0595/HOUSE 6 May 2026 Pending

60 Westland Drive Brookmans Park AL9 7UQ

Erection of single storey rear extension, hip to gable loft conversion and insertion of rear box dormer and alterations to fenestration, following the...

Welwyn Hatfield 6 May 2026
6/2026/0346/HOUSE 6 May 2026 Pending

7 Welwyn Hall Gardens Welwyn AL6 9LF

Erection of a detached outbuilding in the rear garden following the demolition of the existing outbuilding

Welwyn Hatfield 6 May 2026
6/2026/0457/HOUSE 6 May 2026 Pending

187 Blythway Welwyn Garden City AL7 1DS

Erection of home office/gym following the demolition of existing shed outbuildings

Welwyn Hatfield 6 May 2026
6/2026/0583/LAWP 6 May 2026 Pending

Red Lodge High Road Essendon Hatfield AL9 6HU

Certificate of Lawfulness for two single storey side extensions, replacement car port following removal of existing structures, new hardstanding and v...

Welwyn Hatfield 6 May 2026
6/2026/0572/HOUSE 6 May 2026 Pending

23 The Ridgeway Cuffley Potters Bar EN6 4BB

Erection of a part double storey front extension - part double storey rear extension with inset balconies - 0.8m increase in ridge height and installa...

Welwyn Hatfield 6 May 2026
6/2026/0558/HOUSE 6 May 2026 Pending

96 Birchwood Avenue Hatfield AL10 0PS

Erection of a part single-storey, part two storey side extension and a single storey rear extension, including associated internal reconfiguration, re...

Welwyn Hatfield 6 May 2026
6/2026/0561/HOUSE 6 May 2026 Pending

32 Yew Grove Welwyn Garden City AL7 2HY

Erection of a single storey rear extension, following demolition of existing extension

Welwyn Hatfield 6 May 2026
6/2026/0538/HOUSE 6 May 2026 Pending

18 Worcester Road Hatfield AL10 0DX

Erection of single storey rear extension and front lean to porch following the demolition of rear conservatory

Welwyn Hatfield 6 May 2026
6/2026/0526/HOUSE 6 May 2026 Pending

11 Wheatbarn Welwyn Garden City AL7 2BN

Erection of a single storey rear extension following the demolition of conservatory

Welwyn Hatfield 6 May 2026
6/2026/0481/EM 6 May 2026 Pending

159 Handside Lane Welwyn Garden City AL8 6TA

Erection of part single and part two storey rear extension, following demolition of conservatory with alterations to side & rear openings

Welwyn Hatfield 6 May 2026
6/2026/0356/EM 6 May 2026 Granted

6 Densley Close Welwyn Garden City AL8 7JX

Erection of part two storey, part single storey side extension and formation of new parking space & crossover, following demolition of existing single...

Welwyn Hatfield 6 May 2026
6/2026/0486/HOUSE 6 May 2026 Pending

159 Handside Lane Welwyn Garden City AL8 6TA

Erection of part single and part two storey rear extension, following demolition of conservatory with alterations to side and rear openings

Welwyn Hatfield 6 May 2026
6/2026/0463/FULL 6 May 2026 Pending

Land West of Woolmer’s Park The Hay Barn (Howell Court Farm) Essendon AL9 5RL

Demolition of existing agricultural barn and erection of a replacement self-build dwellinghouse with associated access, parking, landscaping, installa...

Welwyn Hatfield 6 May 2026
6/2026/0420/FULL 6 May 2026 Pending

Land at Spinney Lane Rabley Heath Welwyn AL6 0QS

Cessation of existing commercial use and erection of 5 dwellings

Welwyn Hatfield 6 May 2026
6/2026/0433/HOUSE 6 May 2026 Refused

The Willows Marshmoor Lane Welham Green Hatfield AL9 7HT

Extension of existing residential dwelling, along with the demolition and re-construction of existing carport and store

Welwyn Hatfield 6 May 2026
6/2026/0453/HOUSE 6 May 2026 Granted

56 Warren Way Digswell Welwyn AL6 0DN

Erection of a single storey rear extension following the demolition of existing conservatory

Welwyn Hatfield 6 May 2026
6/2026/0435/FULL 6 May 2026 Pending

57 Tolmers Road Cuffley Potters Bar EN6 4JG

Erection of dwelling following the demolition of existing dwelling

Welwyn Hatfield 6 May 2026
6/2026/0441/PN14 6 May 2026 Prior Approval Required and Refused

6 South Mundells Welwyn Garden City AL7 1EP

Prior approval for demolition to remove the existing small industrial building and allow the site to be levelled and resurfaced in tarmac, creating a ...

Welwyn Hatfield 6 May 2026
6/2026/0425/HOUSE 6 May 2026 Granted

93 Holloways Lane Welham Green Hatfield AL9 7NU

Erection of single storey rear extension following demolition of existing detached garage

Welwyn Hatfield 6 May 2026
6/2026/0432/EM 6 May 2026 Granted

187 Blythway Welwyn Garden City AL7 1DS

Erection of outbuilding for home office/ gym following demolition of existing shed/outbuilding

Welwyn Hatfield 6 May 2026
6/2026/0404/HOUSE 6 May 2026 Pending

116 Harmer Green Lane Digswell Welwyn AL6 0ET

Replacement roof of existing garage/outbuilding, incorporating skylights along with other internal and external alterations following partial demoliti...

Welwyn Hatfield 6 May 2026
6/2026/0716/EM 6 May 2026 Pending

15 Guessens Road Welwyn Garden City AL8 6QL

Erection of two storey rear extension, single storey side and rear extensions following demolition of existing garage, insertion of rooflights and ins...

Welwyn Hatfield 6 May 2026
6/2026/0680/HOUSE 6 May 2026 Pending

40 Brookside Crescent Cuffley Potters Bar EN6 4QN

Erection of two-storey front, side and rear extensions and alterations to the roof, including a crown roof to the rear, following partial demolition o...

Welwyn Hatfield 6 May 2026
6/2026/0666/FULL 6 May 2026 Pending

Brocket Park Warren Farm Marford Road Lemsford Welwyn Garden City AL8 7XG

Erection of single storey extension to the dairy, single storey extension to adjacent outbuilding and associated fenestration changes to facilitate gy...

Welwyn Hatfield 6 May 2026
6/2026/0701/PN14 6 May 2026 Pending

6 South Mundells Welwyn Garden City AL7 1EP

Prior approval for demolition to remove the existing small industrial building and allow the site to be levelled and resurfaced in tarmac

Welwyn Hatfield 6 May 2026
6/2026/0718/PN8 6 May 2026 Pending

8 Lemsford Road Hatfield AL10 0DH

Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.07m in height and 2.46m to the eaves following the demoliti...

Welwyn Hatfield 6 May 2026
6/2026/0644/HOUSE 6 May 2026 Pending

2 Handside Lane Welwyn Garden City AL8 6SF

Erection of single storey rear extension following demolition of conservatory, garage conversion with raising of roof, loft conversion with dormers an...

Welwyn Hatfield 6 May 2026
6/2026/0733/FULL 6 May 2026 Pending

Tylersley Farm Tylers Causeway Newgate Street Hertford SG13 8QN

Erection of two dwellings together with car parking and landscaping following the demolition of existing bungalow

Welwyn Hatfield 6 May 2026
6/2026/0702/HOUSE 6 May 2026 Pending

14 Birkin Court Welwyn Garden City AL7 3FA

Erection of a first floor rear extension over existing terrace, ground floor rear extension and partial garage conversion

Welwyn Hatfield 6 May 2026
6/2026/0366/PN8 5 May 2026 Prior Approval Required and Refused

8 Lemsford Road Hatfield AL10 0DH

Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.07m in height and 2.46m to the eaves following the demoliti...

Welwyn Hatfield 5 May 2026
6/2025/1227/EM 5 May 2026 Withdrawn

6 Densley Close Welwyn Garden City AL8 7JX

Erection of part two storey, part single storey side extension and formation of new parking space & crossover, following demolition of existing single...

Welwyn Hatfield 5 May 2026
6/2026/0358/HOUSE 5 May 2026 Granted

20 Turmore Dale Welwyn Garden City AL8 6HS

Part conversion of existing garage, front infill extension and alterations to fenestration

Welwyn Hatfield 5 May 2026
6/2026/0328/HOUSE 5 May 2026 Granted

4 Bulls Lane Hatfield AL9 7PD

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

Welwyn Hatfield 5 May 2026
6/2026/0138/FULL 5 May 2026 Pending

83 Brookmans Avenue Brookmans Park AL9 7QG

Erection of a self build two and half storey detached dwelling and front boundary wall and vehicular gates following the demolition of the existing dw...

Welwyn Hatfield 5 May 2026
6/2026/0276/HOUSE 5 May 2026 Refused

47 Dixons Hill Close Welham Green Hatfield AL9 7EF

Erection of single storey rear and side extensions following the demolition of the existing detached sheds and attached W.C

Welwyn Hatfield 5 May 2026
6/2026/0277/LB 5 May 2026 Refused

47 Dixons Hill Close Welham Green Hatfield AL9 7EF

Erection of single storey rear and side extensions following the demolition of the existing detached sheds and attached W.C

Welwyn Hatfield 5 May 2026
6/2025/2623/HOUSE 5 May 2026 Pending

Rose Cottage Kentish Lane Hatfield AL9 6JP

Replacement of an outbuilding (retrospective)

Welwyn Hatfield 5 May 2026
6/2026/0241/VAR 5 May 2026 Pending

BioPark Broadwater Road Welwyn Garden City AL7 3AX

Demolition of existing buildings and construction of residential units (Use Class C3) and community hub (Use Class E/F.2), with public realm and open ...

Welwyn Hatfield 5 May 2026
6/2025/2464/FULL 5 May 2026 Pending

Bell Bar Service Station Great North Road Hatfield AL9 6DA

Reconfiguration of the site to include the erection of an extension to the existing sales building, demolition of existing bungalow, 2no. new proposed...

Welwyn Hatfield 5 May 2026
6/2026/0159/EM 4 May 2026 Pending

8 Mannicotts Welwyn Garden City AL8 7BW

Erection of a single storey rear extension, first floor rear extension, removal of existing roof and replacement roof with loft and crown roof. New do...

Welwyn Hatfield 4 May 2026
6/2026/0190/HOUSE 4 May 2026 Granted

10 Lowlands Hatfield AL9 5DY

Erection of single storey rear extension with mono pitch roof and rooflights and brick infill of existing front porch following the demolition of exis...

Welwyn Hatfield 4 May 2026
6/2026/0165/HOUSE 4 May 2026 Granted

1 Mannicotts Welwyn Garden City AL8 7BW

Erection of a part single and part two storey rear extension, single storey side extensions on eitherside of the dwelling and erection of a detached g...

Welwyn Hatfield 4 May 2026
6/2026/0145/EM 4 May 2026 Granted

2 Breakmead Welwyn Garden City AL7 3HG

Erection of a single storey rear extension, loft conversion with dormer and demolition of shed

Welwyn Hatfield 4 May 2026
6/2026/0147/HOUSE 4 May 2026 Granted

32 The Holdings Hatfield AL9 5HQ

Erection of a two-storey extension to the southern side of the dwelling and the erection of a single-storey extension to the northern side of the dwel...

Welwyn Hatfield 4 May 2026
6/2026/0150/HOUSE 4 May 2026 Pending

12 The Valley Green Welwyn Garden City AL8 7DQ

Erection of a single storey rear extension following the demolition of the existing conservatory

Welwyn Hatfield 4 May 2026
6/2026/0094/HOUSE 1 May 2026 Granted

200 Heronswood Road Welwyn Garden City AL7 3JQ

Erection of a single storey side and rear extension following the demolition of the existing garden store and covered passage

Welwyn Hatfield 1 May 2026
6/2026/0098/LAWP 1 May 2026 Granted

22 Endymion Road Hatfield AL10 8AS

Certificate of lawfulness for a hip to gable loft conversion with rear box dormer, insertion of skylights to front roof slope and demolition of second...

Welwyn Hatfield 1 May 2026
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Data updated 10 May 2026. Source: Welwyn Hatfield planning portal.