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

32,028Searchable applications

303Recorded as pending

87%Approval rate · 26,770 approved or refused records

3,507Refused applications

23,263 approved · 3,507 refused · 1,688 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 20 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/0217/LAWP
Certificate of lawfulness for hip to gable loft conversion with rear dormer and insertion of roof lights to existing front roof elevation, garage conversion, alterations to openings
2 Astwick Avenue Hatfield AL10 9LA
Received 10 Feb 2025
Decided - Granted6/2017/0499/HOUSE
Erection of ground floor single storey front extension including porch. Installation of front dormers and alterations to existing first floor front windows
48 Pine Grove Brookmans Park Hatfield AL9 7BW
Received 13 Mar 2017
Decided6/2017/2124/TPO
1 x Robinia to fell to ground level, 1 x Goat Willow to lift to 3.5m above ground level and 1 x Plum to thin, lift to 2.5m and reduce by 1m height and width - Conservation Area
108 Lemsford Lane Welwyn Garden City AL8 6YP
Received 20 Sept 2017
Decided - Withdrawn6/2016/1509/FULL
Erection of single storey side and rear extension creating two additional surgeries at ground floor level, incorporating new hardstanding, disabled parking bay and ramp/stepped access to the front of the property and off-road parking to the rear, following demolition of existing garage
Peartree Clinic, 43 Peartree Lane, Welwyn Garden City, AL7 3UA
Received 26 Jul 2016
Decided - Refused6/2024/0266/HOUSE
Installation of new roof with front dormers and Juliet balcony, increase in ridge height and fenestration alterations
36 Canonsfield Road Welwyn AL6 0QA
Received 8 Feb 2024
Decided - Granted6/2021/0681/EMT
Reduce 1 x Apple tree (T1) by 2-3m
17 Fordwich Road Welwyn Garden City AL8 6EX
Received 2 Mar 2021
Decided - Refused6/2024/0819/HOUSE
Erection of a part single, part two storey rear extension, part demolition of existing garage, alterations to openings and extension to driveway
29 Brockswood Lane Welwyn Garden City AL8 7BE
Received 1 May 2024
Decided - WithdrawnN6/2012/2522/FP
Erection of single storey rear extension and replacement out building
2 The Valley Green, WELWYN GARDEN CITY, AL8 7DQ
Received 3 Dec 2012
Decided - WithdrawnW6/2013/1716/EM
Erection of single storey and first floor extensions
14 Homerfield, Welwyn Garden City, AL8 6QZ
Received 5 Aug 2013
Decided - Granted6/2025/1651/EMT
T1 - Crab apple to remove to ground level, tree is in poor condition with decay in basal area T2 - Lime to re-pollard (approx 3-4m) to maintain pruning framework T3 - Lime to re-pollard (approx 3-4m) to maintain pruning framework T4 - Whitebeam to reduce to approx 2m, inline with previous pruning points due to large area of stem decay and crack in union T5 - Perisian ironwood to reduce by 1m to retain a more compact crown T6 - 1 x Box tree to reduce width 0.5 to prevent encroachment towards the property T7 - 1 x Japanese maple to reduce width by 1m to prevent encroachment towards the property
6 Dognell Green Welwyn Garden City AL8 7BL
Received 31 Jul 2025
Decided6/2023/0380/TC
Fell fir tree and replace with suitable alternative
9 Dognell Green Welwyn Garden City AL8 7BL
Received 20 Feb 2023
Decided6/2018/3040/TPO
Fell 1 x Amanogawa Cherry tree and replace with Cherry tree - Amanogawa or similar covered by conservation area
49 Elmwood Welwyn Garden City AL8 6LD
Received 28 Nov 2018
Decided - Split6/2018/2982/COND
Submission of details pursuant to conditions 2 (refuse & recycling) 3 (bicycle store) 4 (hard & soft landscape) 5 (tree protection) & 6 (landscaping) on planning permission 6/2018/2124/FULL
54 New Road Digswell Welwyn AL6 0AH
Received 19 Nov 2018
Decided - Granted6/2024/0082/EM
Erection of single storey side extension
10 Whitethorn Welwyn Garden City AL7 3EX
Received 11 Jan 2024
Decided - Granted6/2024/0538/EM
Like for Like replacement of roof membrane and tiles
1 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 19 Mar 2024
Decided - Granted6/2017/2739/TPO
Fell 12 x Horse Chestnut trees, 1 x Ash tree, 1 x Pine tree, 1 x Thorn tree and 1 x Oak tree and reduce 1 x Ash tree by 5 meters covered by TPO 658 (2017)
45 Harmer Green Lane Digswell Welwyn AL6 0AP
Received 23 Nov 2017
Decided - Withdrawn6/2018/0943/HOUSE
Erection of a single storey rear extension, following demolition of existing conservatory
5 Daffodil Close Hatfield AL10 9FF
Received 9 Apr 2018
Decided - GrantedN6/2013/0081/TC
Removal of Sycamore tree
Pump Cottage, 6 Handside Green, WELWYN GARDEN CITY, AL8 6SQ
Received 15 Jan 2013
Decided - Refused6/2015/2031/PN8
Prior approval for erection of single storey rear extension measuring 6m deep with a height of 4m and eaves height of 4m
8 Hill Ley Hatfield AL10 8LX
Received 29 Sept 2015
Decided - GrantedN6/2013/2059/AD
Installation of 1x non illuminated fascia sign and 3x non illuminated poster sign and 7x illuminated other signs
BP Oil (UK) Ltd, Welwyn By Pass, Welwyn, AL6 9HX
Received 25 Sept 2013
Decided - Refused6/2018/3285/EM
Installation of 12 rear solar panels
3 Lodgefield Welwyn Garden City AL7 1SD
Received 31 Dec 2018
Decided - Granted6/2020/0766/EM
Erection of front picket fence
120 Handside Lane Welwyn Garden City AL8 6SZ
Received 23 Mar 2020
Decided - Withdrawn6/2024/2039/EM
Erection of a single storey rear/side infill extension, first floor side extension and garage conversion, including 1m extension and raising of roof
88 Attimore Road Welwyn Garden City AL8 6LP
Received 22 Oct 2024
Decided - Granted6/2023/0625/LAWP
Certificate of lawfulness for hard standing to be installed in front garden area, allowing car to be parked outside house
320 Bishops Rise Hatfield AL10 9QT
Received 21 Mar 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