England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates

28,327Searchable applications

307Recorded as pending

87%Approval rate · 23,426 approved or refused records

3,141Refused applications

20,285 approved · 3,141 refused · 1,516 withdrawn. Received dates in our records: 1 Nov 1999 to 13 Oct 2026. Most recent record check: 17 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/1814/COND
Submission of details pursuant to condition 1 (external surfaces) & 3 (landscaping) on planning permission 6/2018/0349/FULL
158 Tolmers Road Cuffley Potters Bar EN6 4JR
Received 10 Jul 2018
Decided - Granted6/2018/2692/LAWP
Certificate of Lawfulness for single storey side extension to form new garage and installation of rear dormer to facilitate conversion of loft to habitable space
74 Brocket Road Welwyn Garden City AL8 7TU
Received 22 Oct 2018
Decided - Granted6/2017/0112/EM
Removal of Merryweather tree from front garden
65 Valley Road Welwyn Garden City AL8 7DR
Received 23 Jan 2017
Decided - Granted6/2019/3046/LAWP
Certificate of lawfulness for the erection of a front porch extension, two story rear extension, removal of chimney and installation of new windows and doors
12 Longlands Road Welwyn Garden City AL7 3QB
Received 2 Dec 2019
Decided - Granted6/2019/1186/HOUSE
Erection of a porch and a part single, part two storey side and rear extension including the installation of a rear balcony
6 Lark Rise Hatfield AL10 8RA
Received 15 May 2019
Decided - WithdrawnS6/2014/1001/FP
Alteration of roof increasing roof height to accommodate enlargement of first floor and enlargement of front dormer
28 Kingsmead, Cuffley, Potters Bar, EN6 4AN
Received 6 May 2014
Decided - Refused6/2016/0309/FULL
Extension to existing porch (north elevation) to provide WC facilities involving removal of door and replacement with window. Alteration to east elevation involving removal of window and replacement with entrance doors and access ramps, together with alterations to west elevation.
St Peters Church, Ayot St Peter Road, Ayot St Peter, Welwyn, AL6 9BG
Received 23 Feb 2016
Decided - GrantedW6/2014/0191/TE
Removal of Conifer tree
70 Pentley Park, Welwyn Garden City, AL8 7SG
Received 29 Jan 2014
Decided - Granted6/2022/2923/LB
Internal alterations including the retention of hallway archway and repair works
1 The Old Rectory Hill Farm Lane Welwyn AL6 9BT
Received 30 Dec 2022
Decided - Granted6/2022/2339/EMT
1 x Atlas Cedar to reduce by 10ft height & 6ft width
8 Turmore Dale Welwyn Garden City AL8 6HS
Received 6 Oct 2022
Decided - GrantedW6/2014/2601/EM
Erection of a single storey rear extension
127 Oakdale, Welwyn Garden City, AL8 7QS
Received 28 Nov 2014
Decided - GrantedS6/2014/1057/FP
Erection of attached side garage
4 Welham Manor, Welham Green, Hatfield, AL9 7EL
Received 15 May 2014
Decided - Granted6/2020/0350/VAR
Variation of conditions 8 (approved drawings), 5 (landscaping) and 2 (colour of buildings) on application 6/2017/2340/FULL
Tollgate Farm Tollgate Road North Mymms St Albans AL4 0NY
Received 7 Feb 2020
Decided - Granted6/2019/1122/FULL
The installation of 5 no. condensers within the existing plant compound at the rear of the store and additional cowling and exhausts on the roof
Asda Superstore 98 Town Centre Hatfield AL10 0JP
Received 9 May 2019
Decided - Granted6/2018/1979/LB
Conversion of rear yard into external drinking terrace to include a free standing pergola, festoon lighting and moveable planters, re-positioned air conditioning unit.
The Sun 31 Lemsford Village Welwyn Garden City AL8 7TN
Received 26 Jul 2018
Decided - Granted6/2025/2357/HOUSE
Relocation of existing vehicular entrance gates and installation of personnel gate
The Ridges The Ridgeway Cuffley Potters Bar EN6 4BH
Received 7 Nov 2025
Decided - Granted6/2023/0441/TPO
T1146 - Sycamore- To fell - cavity at base of tree, leaning towards residential property T1147- Oak- To fell/monolith at 5m- heavily declining Oak, evidence of decay around base, within falling distance of residential property G1148- 2x Oaks- Remove dead wood over highway. 2x Oaks, significant dead wood over highway G1149- 2xAsh- To fell- 2x Ash trees exhibiting advanced stages of Ash Dieback T1150- Oak- remove dead wood over highway- declinging Oak, significant dead wood over highway T1151- Ash- To fell- heavily clad in Ivy, exhibiting signs of Ash Dieback, evidence of decay on buttress roots UT001- Ash- To fell- heavily clad in Ivy with evidence of recent failures, leaning over foot path and highway TPO 524 (2016) W1
Horseshoe Plantation & Cooks Wood Welwyn AL6 9JZ
Received 27 Feb 2023
Decided - GrantedW6/2014/0144/TE
Removal of Poplar tree
34 Barleycroft Road, Welwyn Garden City, AL8 6JU
Received 17 Jan 2014
Decided - GrantedS6/2014/0730/S73A
Variation of condition 2 (drawings) of planning permission S6/2012/1199/FP
25 Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QH
Received 8 Apr 2014
Decided - Granted6/2016/0623/EM
Removal of deadwood from Cherry tree
9 Handside Green, Welwyn Garden City, AL8 6SQ
Received 24 Mar 2016
Decided - Granted6/2019/0784/EM
Reduce 1 x Cherry Plum by 3m height & 1.5m width
51 Springfields Welwyn Garden City AL8 6XT
Received 1 Apr 2019
Decided - Granted6/2023/2472/HOUSE
Erection of a single storey side extension to include a roof terrace, erection of a first floor rear extension and alterations to roof to include a hip to gable and installation of two rear dormers to facilitate an enlarged habitable space to the loft conversion
36 Kingsmead Cuffley Potters Bar EN6 4AN
Received 11 Dec 2023
Decided - Refused6/2021/2512/HOUSE
Erection of a single storey side and rear extension with insertion of window to existing side elevation following demolition of existing rear conservatory, detached shed and green house
43 Windsor Road Welwyn AL6 9JY
Received 27 Aug 2021
Decided - Granted6/2023/1665/FULL
Erection of 1 no. new dwelling to the end of the existing terrace and associated alterations to host dwelling
4 Little Ley Welwyn Garden City AL7 4TN
Received 9 Aug 2023

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

View all applications

Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

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.
UK research
Published 16 Jul 2026Updated 13 Sept 2026
Understanding planning · 13 min read
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.
UK research
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.
UK research
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.

Check collection coverage