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

40,225Searchable applications

309Recorded as pending

86%Approval rate · 33,734 approved or refused records

4,809Refused applications

28,925 approved · 4,809 refused · 2,212 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 5 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/0517/EM
Erection of garden outbuilding
28 Ravenfield Road Welwyn Garden City AL7 3UE
Received 18 Mar 2024
Decided - GrantedN6/2013/1044/FP
Installation of insulated cladding system with pebble dash render
12 Mannicotts, WELWYN GARDEN CITY, AL8 7BW
Received 20 May 2013
Decided - GrantedN6/2015/1102/TC
Fell Horse Chestnut tree and crown reduce two Lime trees by 30%
Ayot Cottage, Hill Farm Lane, Welwyn, AL6 9BT
Received 28 May 2015
Decided - Granted6/2024/1058/EMT
Removal of two Spruce trees from garden
6 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 7 Jun 2024
Decided - Refused6/2017/0957/HOUSE
Erection of a single storey front extension
15 High Dells Hatfield AL10 9JD
Received 8 May 2017
Decided6/2025/0534/TC
30ft Hornbeam tree to reduce by 30%
1 Youngs Rise Welwyn Garden City AL8 6RT
Received 21 Mar 2025
Decided - GrantedN6/2015/1226/TC
Removal of dead Cherry tree
26 Brockswood Lane, Welwyn Garden City, AL8 7BG
Received 9 Jun 2015
Decided6/2025/2536/TC
1 x Apple to fell. 1 x Plum to fell.
97 Handside Lane Welwyn Garden City AL8 6SP
Received 8 Dec 2025
Decided - Refused6/2016/1470/EM
Erection of single storey side extension and first floor rear extension following demolition of existing garage
48 Sherrardspark Road, Welwyn Garden City, AL8 7LB
Received 20 Jul 2016
Decided - Granted6/2016/1870/TPO
Crown thin Oak tree by 30% - Conservation Area
51 Woodland Rise, Welwyn Garden City, AL8 7LJ
Received 12 Sept 2016
Decided6/2023/1776/TC
Reduce height of silver birch by 1.5 metres and width of 1.2 metres
5 Longcroft Lane Welwyn Garden City AL8 6EB
Received 23 Aug 2023
Decided - Granted6/2018/2679/HOUSE
Erection of a single storey rear extension and alterations to openings
126 Vincenzo Close Welham Green Hatfield AL9 7NJ
Received 18 Oct 2018
Decided - GrantedN6/2009/1996/TP
REMOVAL OF CEDAR TREE COVERED BY TPO 238 T9
21B Canonsfield Welwyn AL6 0QB
Received 14 Sept 2009
Decided - GrantedN6/2007/1957/FP
ERECTION OF SINGLE STOREY REAR EXTENSION, FIRST FLOOR SIDE EXTENSION AND SINGLE STOREY SIDE EXTENSION FOR USE AS GARAGE
16 Oaklands Rise Welwyn AL6 0RN
Received 20 Dec 2007
Decided - GrantedW6/2013/1133/EM
Erection of single storey side and rear extensions
81 Oakdale, WELWYN GARDEN CITY, AL8 7QP
Received 28 May 2013
Decided - GrantedS6/2008/0614/FP
CONVERSION OF GARAGE TO FORM A HABITABLE ROOM
17 Great Braitch Lane Hatfield AL10 9FD
Received 20 Mar 2008
Decided - GrantedW6/2007/1194/EM
PROPOSED SINGLE STOREY GARDEN STRUCTURE
7 Dellcott Close, Welwyn Garden City, AL8 7BB
Received 7 Aug 2007
Decided - GrantedW6/2013/1987/EM
Formation of vehicle hardstanding and crossover
325 Knightsfield, Welwyn Garden City, AL8 7NJ
Received 16 Sept 2013
Decided - Granted6/2021/0906/HOUSE
Partial conversion of garage into a study, raising of roof above and insertion of front window (with brick infill) and new garage door in place of existing garage door
11 Cedar Road Hatfield AL10 8NZ
Received 22 Mar 2021
Decided - Granted6/2020/1267/EM
Erection of a single storey and two storey side and rear extensions following demolition of attached buildings. Raising of front and rear parapets and insertion of roof lights. Works to also include partial garage conversion and alterations to fenestration.
24 Barleycroft Road Welwyn Garden City AL8 6JU
Received 4 Jun 2020
Decided - Granted6/2017/1213/COND
Submission of details pursuant to Condition 6 (Archaeological report) attached to planning permission 6/2015/1987/FULL dated 7th January 2016
24 Mill Lane Welwyn AL6 9ET
Received 2 Jun 2017
Decided - Granted6/2022/2246/EM
Installation of Velux window no stills required
255 Handside Lane Welwyn Garden City AL8 6TF
Received 28 Sept 2022
Decided - GrantedS6/2004/0238/FP
ERECTION OF TWO STOREY SIDE EXTENSION AND CONSERVATORY
WYNDHAM COTTAGE, CAMFIELD PLACE, HATFIELD, HERTFORDSHIRE, AL9 6JE
Received 12 Feb 2004
Decided - Granted6/2019/1901/COND
Submission of details pursuant to condition 1 (sample of materials) 2 (tree protection plan) 3 (hard and soft landscaping) and 4 (archaeological works) on planning permission 6/2018/1599/FULL
20 Kindersley Close Welwyn AL6 9RN
Received 5 Aug 2019

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