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

32,852Searchable applications

303Recorded as pending

87%Approval rate · 27,502 approved or refused records

3,587Refused applications

23,915 approved · 3,587 refused · 1,719 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/2613/HOUSE
Erection of a single storey front extension to incorporate new porch and extend end garage, a two storey side and rear extension, single storey rear extension, patio area with pergola.
39 Peplins Way Brookmans Park AL9 7UR
Received 16 Nov 2022
Decided - GrantedS6/2014/2136/NM
Non material amendment following approval of planning permission S6/2014/1058/FP - To extend church hall
St Peters Presbytery St Peters Catholic Church, Bishops Rise, Hatfield, AL10 9HN
Received 30 Sept 2014
Decided - Granted6/2017/2088/EM
Installation of rear roof light to facilitate loft conversion
39 Beechfield Road Welwyn Garden City AL7 3RG
Received 15 Sept 2017
Decided - GrantedW6/2014/0660/EM
Alterations to existing hardstanding
14 Windhill, Welwyn Garden City, AL7 1RJ
Received 21 Mar 2014
Decided - Granted6/2024/1572/PN8
Prior approval for the erection of a single storey rear extension measuring 4.05m in depth, 3.1m in height, 2.77m to the eaves
11A Windsor Close Welwyn AL6 9JZ
Received 19 Aug 2024
Decided6/2018/0694/TPO
Prune 1 x Holly tree (T1) by reducing crown height by approximately 7-8 metres, prune 1 x Goldenrain tree (T2) by reducing crown by 20%, dismantle 1 x Yew tree (T3) and leave stump at 2 metres, prune 1 x Sweet Chestnut tree (T4) and 1 x Sweet Chestnut tree (T5) by remove all dead, diseased and broken branches 2 centimetres in diameter and larger throughout crown and raise lower branches to a height of 4-5 metres, dismantle 1 x Red Oak tree (T6) and grind the stump to approximately 30 centimetres below existing grade, prune 1 x Ash group (T7) as to Tree Health & Structural Integrity Report GD/170206R/sh 16th October 2017, prune 2 x Oak trees (T8 and T9) by removing all dead, diseased and broken branches 2 centimetres in diameter and larger throughout crown and reduce crown height and spread of largest tree T8 by approximately 2-2.5 metres, prune 1 x Holly tree (T10) by reducing crown height by approximately 3-4 metres and crown spread by approximately 1-2 metres and raise lower branches to a height of 3-4 metres and remove all dead, diseased and broken branches 2 centimetres in diameter and larger throughout crown, prune 1 x Lime tree (T11) (tag 0580) by reducing height and spread of tree to approximately 10 metres - Conservation area
Shaws Corner Bibbs Hall Lane Welwyn AL6 9BX
Received 14 Mar 2018
Decided - Granted6/2026/0647/HOUSE
Erection of a single-storey rear extension, conversion of existing garage to habitable space and formation of a porch
1 Oakington Welwyn Garden City AL7 2PS
Received 13 Apr 2026
Decided6/2022/1896/TC
Prune 2 x Apple trees by 1.2m height & width and remove dead branches
14 Moorend Welwyn Garden City AL7 4QL
Received 15 Aug 2022
Decided - GrantedS6/2014/0962/FP
Erection of enclosed front porch
6 Park Close, Brookmans Park, Hatfield, AL9 7RS
Received 7 May 2014
Decided - Refused6/2017/0897/FULL
Erection of a 2-bedroom bungalow with detached garage following demolition of existing garages
Rear of 14 Great North Road Welwyn AL6 0PL
Received 28 Apr 2017
Decided - Granted6/2020/1045/VAR
Variation of condition 7 (approved plans) on planning permission 6/2018/1599/FULL
Land adjacent to 20 Kindersley Close Welwyn AL6 9RN
Received 11 May 2020
Decided - Withdrawn6/2023/0745/EM
Erection of two story side extension and single story rear extension
18 Camfield Welwyn Garden City AL7 4ED
Received 4 Apr 2023
Decided - Granted6/2017/0674/EM
Extension of existing driveway to create a 'carriage' driveway.
99 Attimore Road Welwyn Garden City AL8 6LG
Received 4 Apr 2017
Decided - Granted6/2018/2261/HOUSE
Erection of single storey front and rear extensions, installation of 3 rooflights and 1 rear window to facilitate garage conversion to habitable space
16 High Oaks Road Welwyn Garden City AL8 7BH
Received 31 Aug 2018
Decided - Granted6/2017/0244/HOUSE
Erection of two storey side extension, part side extension with alterations to openings and installation of 5 rooflights.
3 Poplar Avenue Hatfield AL10 9RY
Received 10 Feb 2017
Decided - Granted6/2019/1417/HOUSE
Installation of rear dormer window/balcony to facilitate loft conversion
111 Eddington Crescent Welwyn Garden City AL7 4SX
Received 12 Jun 2019
Decided - Granted6/2021/2064/TPO
T1 Ash - remove deadwood T2 Pine - thin density by 15% and remove deadwood T3 Sycamore - crown thin density by 25%, remove deadwood, retain basic size and shape T4 Horse Chestnut - crown thin density by 25%, remove deadwood, retain basic size and shape T5 Horse Chestnut - crown thin density by 25%, remove deadwood, retain basic size and shape
Claregate Thornton Road Little Heath Potters Bar EN6 1BY
Received 8 Jul 2021
Decided - Granted6/2024/1889/EM
Installation of new of new external wall insulation, new roof coverings and new windows, doors and ventilation works
1 Attimore Close Welwyn Garden City AL8 6LN
Received 1 Oct 2024
Under Consultation6/2026/1577/HOUSE
Erection of a single storey rear extension following the part demolition of existing single storey rear extension.
1 The Orchard Welwyn Garden City AL8 7PL
Received 10 Sept 2026
Decided6/2021/0737/TC
Fell 1 x Cherry tree (A1), 1 x Silver Birch tree (A2), and 1 x Fir tree (A3), reduce 1 x Oak tree (B1) by 3m and lift crown by 2m covered by conservation area
3 Woodland Rise Welwyn Garden City AL8 7LE
Received 8 Mar 2021
Decided - Granted6/2017/1033/FULL
Erection of Glasshouse, fencing, hard landscaping and ancillary works.
University Of Hertfordshire College Lane Hatfield AL10 9AB
Received 12 May 2017
Decided - Granted6/2025/0397/COND
Submission of details pursuant to Condition 21 (Samples of materials) on planning permission 6/2021/3367/MAJ
Ludwick Green Ludwick Way Welwyn Garden City AL7 3QN
Received 3 Mar 2025
Decided - Granted6/2019/3212/COND
Submission of details pursuant to conditions 1 (external lighting scheme) and 2 (illumination intensity) on planning permission 6/2019/1990/FULL
The Red Lion 11 Digswell Hill Welwyn AL6 9AJ
Received 23 Dec 2019
Decided - Granted6/2023/1806/HOUSE
Erection of a single storey front and side extension following the demolition of existing garage with internal alterations
7 Turpins Chase Welwyn AL6 0QZ
Received 29 Aug 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