England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates

36,516Searchable applications

333Recorded as pending

86%Approval rate · 30,418 approved or refused records

4,167Refused applications

26,251 approved · 4,167 refused · 1,955 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 24 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

Planning information Planning and building Local plan Our Local Plan Pre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation Area Article 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records

Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

Decided - GrantedS6/2013/0830/MA
Redevelopment to provide 12 new residential units comprising 8 x three bedroom houses, and 3 x two bedroom and 1 x one bedroom flats in two/three storey block, incorporating under-croft car parking and accommodation within roof-scape, together with amenity terraces and balconies, works to alter and extend adopted highway along with provision of surface car parking, landscaping and associated works
Land at, Green Close and Station Road, Brookmans Park, HATFIELD, AL9 7ST
Received 18 Apr 2013
Decided - GrantedN6/2013/1677/FP
New accessible fire exit and public accessible entrance doors to Sports Hall
Oaklands College, The Campus, Welwyn Garden City, AL8 6AH
Received 2 Aug 2013
Decided - Granted6/2018/3060/VAR
Variation of condition 17 (approved plans) on planning permission 6/2017/1194/MAJ, dated 08/12/2017
98 Great North Road Hatfield AL9 5DB
Received 30 Nov 2018
Decided - Granted6/2021/3107/HOUSE
Erection of 1 x carport involving demolition of existing carport
2 Densley Close Welwyn Garden City AL8 7JX
Received 1 Nov 2021
Decided - Granted6/2021/1995/HOUSE
Garage conversion including the removal of the existing garage door and infilling with brickwork and the installation of new window
21 Twin Foxes Woolmer Green SG3 6QT
Received 1 Jul 2021
Decided - Granted6/2019/2111/LB
Contruction of swimming pool extension
Ayot Montfitchet Ayot St Peter Road Ayot St Peter Welwyn AL6 9BH
Received 5 Aug 2019
Decided - Granted6/2021/2727/EM
Retrospective aplication for raising of parapet wall and insertion of 1 x flat roof light and 2 x lantern roof lights to detached outbuilding
11 Meadow Green Welwyn Garden City AL8 6SS
Received 21 Sept 2021
Decided - GrantedW6/2014/2009/TE
Fell White Beam to ground level and replace with a tree of the same species
9 Elmwood, Welwyn Garden City, AL8 6LD
Received 9 Sept 2014
Decided - Refused6/2020/1954/COND
Submission of details persuant to condition 27 (noise) on planning permission 6/2018/0171/MAJ
Former Shredded Wheat Factory Al8 6UN
Received 6 Aug 2020
Decided - Granted6/2021/2754/FULL
Erection of a 5-bedroom detached dwelling
22A Church Lane Northaw Potters Bar EN6 4NX
Received 22 Sept 2021
Decided - Granted6/2025/2307/HOUSE
Erection of detached garage, single storey front infill extension, conversion of existing garage to habitable room with a pitched roof and installation of rooflights
5 The Avenue Welwyn AL6 0PN
Received 30 Oct 2025
Decided - GrantedN6/2015/1473/TC
Felling of cedar tree in front garden
86 Handside Lane, Welwyn Garden City, AL8 6SJ
Received 9 Jul 2015
Decided - Granted6/2021/0350/TPO
1 x Hornbeam (T1 of G1) to remove defective branches and bring back into shape 1 x Hornbeam (T2) remove defective branches and reduce 10%
17 Turpins Ride Welwyn AL6 0QU
Received 4 Feb 2021
Decided - Granted6/2025/1941/HOUSE
Erection of two storey side extension, part single and part two storey rear extensions and front porch following the demolition of existing side garage
73 Dellsome Lane Welham Green Hatfield AL9 7NE
Received 9 Sept 2025
Decided - Granted6/2022/2220/COND
Submission of details pursuant to conditions 1 (Construction Management Plan), 2 (Detailed surface Water Drainage Scheme), 5 (Arboricultural Method Statement), 11 (Noise Impact Assessment) and 17 (Surface Water Strategy Report) on planning permission 6/2021/2260/FULL
Stadium Service Station Stanborough Road Welwyn Garden City AL8 6XA
Received 26 Sept 2022
Decided - GrantedN6/2009/1799/TC
WORKS TO TWO OAK TREES, ONE SITUATED AT THE FRONT OF PROPERTY AND ONE SITUATED AT THE REAR. CUT BACK TO PREVIOUS CUTS AND REMOVAL OF DEAD BRANCHES.
29 MANDEVILLE RISE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7JT
Received 24 Aug 2009
Decided6/2018/0313/TPO
Fell 1 x Ash tree and reduce 1 x Ash tree back to previous (approx. 4m height) - conversation area
6 Hawthorns Welwyn Garden City AL8 7SE
Received 31 Jan 2018
Decided - GrantedW6/2007/1183/EM
ALTERATIONS TO FRONT GARDEN
5 Hempstall, Welwyn Garden City, AL7 3LY
Received 7 Aug 2007
Decided - Refused6/2021/3191/FULL
Erection of 1 x 2 bed two storey dwelling
79 Dellsome Lane Welham Green Hatfield AL9 7NE
Received 8 Nov 2021
Decided - GrantedW6/2007/1105/EM
PROPOSED SINGLE STOREY SIDE AND REAR EXTENSION
30 Longcroft Lane, Welwyn Garden City, AL8 6EA
Received 24 Jul 2007
Decided - Granted6/2022/1329/HOUSE
Erection of single storey front porch
22 Mountway Close Welwyn Garden City AL7 4JZ
Received 9 Jun 2022
Decided - RefusedN6/2013/0732/NM
Non material amendment following approval of planning permission N6/2013/0100/S73B - Increase of rear extension depth from 3.6m to 4.2m, insertion of first floor side window, alterations to the location of roof light in the southern elevation and new roof light over the garage
104 Sloansway, WELWYN GARDEN CITY, AL7 1ND
Received 12 Apr 2013
Decided - Granted6/2022/2674/HOUSE
Erection of a part single part two storey rear extension, single storey side extension, addition of rooflights and solar panels to the roof slope and alterations to landscaping on frontage
25 Coneydale Welwyn Garden City AL8 7RX
Received 24 Nov 2022
Decided - Granted6/2023/2147/TPO
T7 Ash – to prune heavily to form a low pollard with the branches above the main stem, at a height of around four metres, being cut back to a maximum of one to two metres in length. T5 Pine – Tree is dead and needs to be reduced to a safe height or felled (TPO 93)
49 Osborne Road Little Heath Potters Bar EN6 1SB
Received 23 Oct 2023

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching a proposal in Welwyn Hatfield Borough Council

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How to search planning applications

Guides to planning records

All planning guides

Understanding planning · 13 min read
Planning application documents: what to read first
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
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Published 16 Jul 2026Updated 13 Sept 2026
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Planning permission drawings: how to read plans
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.
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Published 6 Aug 2026Updated 13 Sept 2026
Property research · 13 min read
Planning approval rates: how to read council statistics
Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
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Published 13 Aug 2026Updated 13 Sept 2026

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

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