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

38,679Searchable applications

335Recorded as pending

86%Approval rate · 32,329 approved or refused records

4,621Refused applications

27,708 approved · 4,621 refused · 2,100 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 27 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2015/2285/FULL
Erection of two storey side, front and rear extensions, loft conversion and conversion of an existing dwelling into 3no flats.
22 Oaklands Wood, Hatfield, AL10 8LU
Received 9 Nov 2015
Decided - GrantedS6/2014/1736/FP
Erection of rear conservatory
24 Burleigh Way, Cuffley, Potters Bar, EN6 4LG
Received 1 Aug 2014
Decided - Granted6/2021/0126/EMT
Crown thin 1 x Oak Tree (T2) by 25%
4 The Limes Welwyn Garden City AL7 4BD
Received 15 Jan 2021
Decided - GrantedS6/2007/0694/FP
ERECTION OF 1ST FOOR REAR EXTENSION
117 Newgate Street Village Hertford SG13 8QR
Received 3 May 2007
Decided6/2020/0995/TC
Reduce 1 x Silver Birch Tree by 30%
42 Howlands Welwyn Garden City AL7 4RE
Received 1 May 2020
Decided - Refused6/2020/1014/TPO
Fell 12 x Sweet Chestnut Trees [T1-T12] Covered by TPO 655 (2017) W1.
8 Pine Crest Welwyn AL6 0EQ
Received 6 May 2020
Decided - Granted6/2025/0379/HOUSE
Erection of two storey side and rear extension and new porch to entrance
2 The Drive Brookmans Park AL9 7BD
Received 27 Feb 2025
Decided - RefusedS6/2015/1100/LUP
Certificate of lawfulness for the erection of single and two storey rear extension including hip to gable extension and installation of dormer window to rear roof elevation
7 Astwick Avenue Hatfield AL10 9LB
Received 26 May 2015
Decided - Granted6/2024/0173/VAR
Variation of condition 8 (opening hours) on planning permission 6/2020/0656/FULL.
Unit 3 Swallow End Welwyn Garden City AL7 1JA
Received 29 Jan 2024
Decided6/2022/0238/TC
1 x Field Maple to fell to ground level - EMS Application 6/2021/2639/EMT
10 Coneydale Welwyn Garden City AL8 7RZ
Received 2 Feb 2022
Decided6/2017/2416/TPO
Prune and lift canopy of two Holm Oaks trees - Conservation Area
26 Salisbury Square Hatfield AL9 5JD
Received 19 Oct 2017
Decided - Granted6/2018/2375/HOUSE
Erection of garden studio
1 Douglas Close Digswell Welwyn AL6 0DT
Received 17 Sept 2018
Decided - GrantedS6/2007/0428/FP
ERECTION OF SINGLE STOREY REAR EXTENSION
4 Meadow Croft Hatfield AL10 0SG
Received 15 Mar 2007
Decided - GrantedS6/2005/1441/FP
ERECTION OF SIX BEDROOM DWELLING - ADMENDMENTS TO PLANNING PERMISSION S6/2005/412/FP.
32 Mymms Drive Brookmans Park Hatfield AL9 7AF
Received 21 Nov 2005
Decided - GrantedW6/2015/0483/EM
Replacement of existing white timber vertical sliders with UPVC vertical sliders
14 Elmwood, Welwyn Garden City, AL8 6LE
Received 9 Mar 2015
Decided - Granted6/2017/2245/EM
Line of 4 Leyland Cypress trees to fell to ground level
357 Knightsfield Welwyn Garden City AL8 7NB
Received 3 Oct 2017
Decided - GrantedN6/2013/2669/LUE
Certificate of lawful use for the continued use of a MOT bay.
Chamber & Gillies, 12-14 School Lane, Welwyn, AL6 9PH
Received 20 Dec 2013
Decided - GrantedS6/2014/0969/DS
Approval of details reserved by conditions 3 (materials), 5 (landscaping), 6 (external Lighting), 7 (bat roosting), 10 (Archaeological written scheme of investigation), 12 (refuse bins) and 13 (cycle parking) of planning permission S6/2012/1882/FP
Nast Hyde Farm, Wilkins Green Lane, Hatfield, AL10 9RF
Received 8 May 2014
Decided - GrantedN6/2013/2205/FP
Increase in roof height to accommodate first floor living space, insertion of 3 dormer windows to the front and 2 dormer windows and a rooflight to the rear, alterations to single storey rear extension and associated internal alterations
1 Link Road Oaklands Welwyn AL6 0SA
Received 21 Oct 2013
Decided - Granted6/2020/0957/COND
Submission of details pursuant to condition 6 (glazing and ventilation schemes) on planning permission 6/2017/1568/MAJ
Former Xerox Campus Bessemer Road Welwyn Garden City AL71HE
Received 28 Apr 2020
Appeal Decided - Dismissed6/2019/1919/EM
Installation of fence following removal of hedge
12 Thistle Grove Welwyn Garden City AL7 4AN
Received 16 Jul 2019
Decided - Granted6/2017/1679/PN8
Prior approval for erection of rear extension measuring 4 m in depth, 3.4 m in height and 2.2 m to the eaves, following demolitian of existing conservatory
3 Twelve Acres Welwyn Garden City AL7 4TG
Received 31 Jul 2017
Decided - Granted6/2024/0898/EMT
Remove 1 x Ash tree with dieback
8 The Glade Welwyn Garden City AL8 7LG
Received 14 May 2024
Decided - Granted6/2021/0151/HOUSE
Erection of single storey side and rear extension, following demolition of existing and installation of 2 rooflights.
5 Fordwich Road Welwyn Garden City AL8 6EX
Received 19 Jan 2021

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

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