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

40,146Searchable applications

300Recorded as pending

86%Approval rate · 33,676 approved or refused records

4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 2 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2018/2619/TPO
Remove roots of 1 x Redwood tree (T1) located at 90 Pine Grove by cutting and removing roots to a depth of 400 mm back to the edge of the driveway, approximately 6 - 7 m away from the tree trunk, install plastic membrane root barrier to a depth of 400 mm and reinstate driveway - covered by TPO 250
4 The Drive Brookmans Park Hatfield AL9 7BD
Received 12 Oct 2018
Decided - GrantedW6/2004/1226/EM
ERECTION OF GARDEN SHED
65 Wellcroft Road, Welwyn Garden City, AL7 3JX
Received 11 Aug 2004
Decided - Granted6/2018/0682/HOUSE
Erection of ground floor rear extension and alterations to the ground floor front extension (part-retrospective).
111 Hatfield Road, Little Heath, Potters Bar, EN6 1HZ
Received 12 Mar 2018
Decided - Granted6/2018/0961/HOUSE
Erection of single storey rear and side extension
98 Brookside Crescent Cuffley Potters Bar EN6 4QJ
Received 11 Apr 2018
Decided - GrantedW6/2007/1665/EM
ERECTION OF GARAGE FOLLOWING DEMOLITION OF EXISTING.
3 Mannicotts, Welwyn Garden City, AL8 7BW
Received 6 Nov 2007
Decided - Granted6/2023/1577/HOUSE
Erection of a ground floor rear extension
10 Drakes Way Hatfield AL10 8XR
Received 31 Jul 2023
Decided6/2019/1630/TC
Fell 1 x Ash tree
36 High Oaks Road Welwyn Garden City AL8 7BH
Received 3 Jul 2019
Decided - RefusedW6/2008/0240/EM
EXTENSION OF EXISTING HARD-STANDING
36 ELM GARDENS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6RY
Received 8 Feb 2008
Decided - Granted6/2020/0730/EM
Erection of a single storey front and side extension, part conversion of existing garage, insertion of a rooflight into existing flat roof, alterations to fenestrations and external finishes to the ground floor front elevation
31 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 16 Mar 2020
Decided - Granted6/2025/2605/EM
Installation of hardstanding
1 Stacklands Welwyn Garden City AL8 6XW
Received 19 Dec 2025
Decided - Granted6/2018/0761/HOUSE
Erection of front porch, single storey rear extension & first floor extension over garage
12 Heathlands Welwyn AL6 0UU
Received 21 Mar 2018
Decided - GrantedN6/2007/0937/FP
ERECTION OF FRONT DORMER AND CONVERSION OF GARAGE
6 Juniper Gardens Welwyn AL6 0XH
Received 20 Jun 2007
Decided - GrantedN6/2015/0256/TP
Remove deadwood and overhanging limbs from 6 Oak trees and 1 Ash tree
38 Reynards Road Welwyn AL6 9TP
Received 10 Feb 2015
Decided - Granted6/2020/2698/FULL
Proposed single storey extension to south facade of the Forum building for use as an outdoor entrance foyer with enclosed outdoor smoking area
The Forum University Of Hertfordshire College Lane Hatfield AL10 9AB
Received 16 Oct 2020
Decided - Granted6/2024/2351/EM
Installation of a solar PV array on the south-east facing roof with 21 panels
55 Woodland Rise Welwyn Garden City AL8 7LJ
Received 9 Dec 2024
Decided - Refused6/2018/0485/EM
Removal of the hedge at the front of property and replace with a 1 meter high picket fence.
16 Kirklands Welwyn Garden City AL8 7RD
Received 20 Feb 2018
Decided - Granted6/2025/0184/EM
Erection of a single storey side garage extension with replacement raised patio area and alterations to openings
103 Attimore Road Welwyn Garden City AL8 6LG
Received 3 Feb 2025
Decided - Granted6/2022/0854/PN27
Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 10m in height
Coverack 50 The Ridgeway Cuffley Hertfordshire EN6 4BA
Received 8 Apr 2022
Decided - Granted6/2016/2072/FULL
Replacement of existing extraction/ventilation system
72-76 Haldens Welwyn Garden City AL7 1DD
Received 7 Oct 2016
Decided - Granted6/2024/1528/COND
Submission of details pursuant of Conditions 7 and 35 (External Lighting) and Conditions 18 and 46 (Electric Vehicle Charging) on planning permission 6/2019/2714/OUTLINE
YMCA 90 Peartree Lane Welwyn Garden City AL7 3UL
Received 12 Aug 2024
Decided - GrantedN6/2007/0856/FP
ERECTION OF SINGLE STOREY EXTENSION AND REAR CONSERVATORY
30 Lincoln Close Welwyn Garden City AL7 2NN
Received 6 Jun 2007
Decided - Refused6/2017/0369/HOUSE
Erection of wall with railings & gates facing road.
54 Mymms Drive Brookmans Park Hatfield AL9 7AF
Received 27 Feb 2017
Decided - Granted6/2019/1759/HOUSE
Erection of a single storey rear and first floor side extension
22 Crossway Welwyn Garden City AL8 7EE
Received 16 Jul 2019
Decided - Granted6/2021/1298/HOUSE
Erection of a single storey rear extension and alterations to existing outbuilding and garage
8 Pitsfield Welwyn Garden City AL8 7SJ
Received 22 Apr 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