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

40,288Searchable applications

321Recorded as pending

86%Approval rate · 33,780 approved or refused records

4,816Refused applications

28,964 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/2632/HOUSE
Demolition of existing rear conservatory to facilitate the erection of a single storey rear extension and a first floor side extension
5 Beverley Gardens Welwyn Garden City AL7 2NG
Received 12 Oct 2020
Decided6/2024/0695/TC
Cherry tree at the end of our garden. The tree has been dead for five years and we propose to remove the tree and replace with one of the same variety
33 Blakemere Road Welwyn Garden City AL8 7PQ
Received 15 Apr 2024
Decided - Granted6/2018/0431/COND
Submission of details pursuant to condition 4 (construction management plan) and 13 (external lighting details) on planning permission 6/2016/2624/FULL, dated 14/09/2017
Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ
Received 12 Feb 2018
Decided - RefusedN6/2007/0903/FP
ERECTION OF SINGLE STOREY SIDE EXTENSION.
35 Kirklands Welwyn Garden City AL8 7RF
Received 13 Jun 2007
Decided - Granted6/2021/1317/VAR
Variation of condition 1 (time limited permission) on planning permission 6/2019/0563/FULL.
H R Owen Mosquito Way Hatfield AL10 9WN
Received 23 Apr 2021
Decided - WithdrawnN6/2004/1499/FP
INSTALLATION OF 5 METRE LIGHTING COLUMNS TO GARAGE FORECOURTS
GARAGES 1 - 23 AT, WESTLY WOOD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1QL
Received 8 Oct 2004
Decided - Refused6/2021/3441/HOUSE
Erection of a two storey side extension, increase in roof height and installation of rear dormer to facilitate conversion of loft into habitable space.
20 Peplins Way Brookmans Park Hatfield AL9 7UU
Received 8 Dec 2021
Decided - GrantedN6/2015/0160/FP
Partial change of use of Post Office (Class A1) to residential (Class C3) and erection of two storey rear extension and insertion of rooflights and dormer windows to form residential accommodation
Huttons, Handside Post Offiice, Marsden Road, Welwyn Garden City, AL8 6YG
Received 29 Jan 2015
Decided - Granted6/2019/1470/VAR
Variation of condition 6 (hard and soft landscaping) of planning permission 6/2016/0192/MAJ
Brookmans Place Green Close Brookmans Park Hatfield AL9 7ST
Received 14 Jun 2019
Decided - GrantedN6/2013/1208/FP
Erection of two storey and part single storey rear extension
43 Moors Walk, Welwyn Garden City, AL7 2AX
Received 11 Jun 2013
Decided - RefusedS6/2006/0277/AD
TWO EXTERNALLY ILLUMINATED SIGNS
WHITBREAD RESTAURANTS PLC, AIRFIELD BREWERS FAYRE, WELLFIELD ROAD, HATFIELD, HERTFORDSHIRE, AL100DA
Received 13 Mar 2006
Decided - Granted6/2017/0787/COND
Submission of details pursuant to condition 2 (approved patio materials) on planning application 6/2015/2111/VAR, dated 05/01/2016.
24 Prospect Place Welwyn AL6 9EN
Received 19 Apr 2017
Decided - Granted6/2025/1592/EMT
T1 Laurel - Reduce by 2 metres in height. T2 Laurel - Reduce by 2 metres in height. T3 Chestnut - Reduce crown by 30%. T4 Sycamore - Reduce crown by 30%. T5 - Pear - Reduce crown by 30%
6 Youngs Rise Welwyn Garden City AL8 6RU
Received 24 Jul 2025
Decided - GrantedS6/2009/1016/DS
DISCHARGE OF CONDITIONS
UNIVERSITY OF HERTFORDSHIRE, COLLEGE LANE, HATFIELD, HERTFORDSHIRE, AL10 9PN
Received 26 May 2009
Decided - Granted6/2018/3174/COND
Submission of details pursuant to condition 2 (landscaping scheme) on planning permission 6/2017/1003/VAR
The View Carbone Hill Northaw Hertford SG13 8RG
Received 12 Dec 2018
Decided - Granted6/2017/2605/HOUSE
Erection of a single storey side and rear extension with new roof over existing rear extension and installation of rooflights.
41 School Lane Welwyn AL6 9PQ
Received 9 Nov 2017
Decided - Granted6/2022/1088/COND
Resubmission of details pursuant of condition 2 (materials) on planning permission 6/2019/1616/FULL
Land behind 140 Ludwick Way Welwyn Garden City AL7 3PY
Received 10 May 2022
Decided - GrantedW6/2004/1670/EM
ERECTION OF GARDEN SHED
16 Moorside, Welwyn Garden City, AL7 4QH
Received 11 Nov 2004
Appeal Decided - DismissedN6/2008/0096/FP
ERECTION OF NEW DWELLING
13 The Avenue Welwyn AL6 0PW
Received 17 Jan 2008
Decided - GrantedW6/2004/0628/EM
ERECTION OF REAR CONSERVATORY
8 Barnfield Road, Welwyn Garden City, AL7 3TQ
Received 29 Apr 2004
Decided - RefusedN6/2007/1173/FP
ERECTION OF SINGLE STOREY REAR & SIDE EXTENSIONS AND FIRST FLOOR FRONT & SIDE EXTENSIONS
16 Oaklands Rise Welwyn AL6 0RN
Received 6 Aug 2007
Decided - Granted6/2021/1119/EMH
Erection of a double storey rear extension and partial garage conversion
1 Palmerston Close Welwyn Garden City AL8 7DL
Received 6 Apr 2021
Decided - GrantedN6/2014/2312/DS
Approval of details reserved by condition 3 (colour and moulding) of N6/2014/1409/FP
14 High Street Welwyn AL6 9EQ
Received 20 Oct 2014
Decided - GrantedN6/2014/2112/NM
Non material amendment following approval of planning permission N6/2013/2403/FP - Raise the height of the extention by 263mm
17 Heath Road Welwyn AL6 0TP
Received 23 Sept 2014

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