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

34,298Searchable applications

313Recorded as pending

87%Approval rate · 28,653 approved or refused records

3,787Refused applications

24,866 approved · 3,787 refused · 1,784 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2023/1920/HOUSE
Erection of a two storey side extension
1 Oaklands Wood Hatfield AL10 8LU
Received 18 Sept 2023
Decided - Granted6/2021/1219/HOUSE
Single storey side and rear extension and installation of two rooflights
5 Fordwich Road Welwyn Garden City AL8 6EX
Received 14 Apr 2021
Decided - Granted6/2022/0249/HOUSE
Erection of part two storey and part single storey side extension, two storey rear and part single storey rear extension, with insertion of roof light and additional side window to existing side elevation.
55 Wheatley Road Welwyn Garden City Hertfordshire AL7 3LH
Received 4 Feb 2022
Decided - Granted6/2018/3245/HOUSE
Erection of single storey rear extension following demolition of existing
1 Forresters Drive Welwyn Garden City AL7 2HN
Received 20 Dec 2018
Decided - Withdrawn6/2017/2250/HOUSE
Erection of a single storey rear extension and alterations to openings
358 Knightsfield Welwyn Garden City AL8 7NG
Received 3 Oct 2017
Decided - GrantedS6/2013/2401/HH
Alterations to extend existing conservatory
12 Link Walk, Hatfield, AL10 8TS
Received 11 Nov 2013
Decided - Refused6/2022/1391/HOUSE
Erection of a single storey side extension and front extension
56 Bramble Road Hatfield AL10 9SE
Received 16 Jun 2022
Decided - Refused6/2017/1663/HOUSE
Erection of single storey rear extension and conversion of existing garage
13 Lytton Gardens Welwyn Garden City AL8 6EG
Received 28 Jul 2017
Decided - Granted6/2026/0072/TC
Crown reduce 1 x Oak tree by approx 2-3m Remove any major deadwood throughout crown
55 Parkway Welwyn Garden City AL8 6JF
Received 15 Jan 2026
Decided - Refused6/2018/0059/LAWP
Certificate of lawfulness for the erection of a single storey rear extension.
3 The Reeds Welwyn Garden City AL7 3BN
Received 8 Jan 2018
Decided - Refused6/2020/2937/LAWP
Certificate of lawfulness for the following: Erection of garden office in rear garden. Relocation of front door to side of house by extension of single storey lean-to porch. Replacement of remaining windows and doors - change from UPVC to Origin aluminium.
2 Greenways Digswell Welwyn AL6 0EE
Received 9 Nov 2020
Decided - Granted6/2020/0515/EM
Formation of hardstanding
5 Bushey Ley Welwyn Garden City AL7 3EY
Received 24 Feb 2020
Decided - Granted6/2022/0349/EMT
Reduction of oak tree by 10%
27 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 14 Feb 2022
Decided - Granted6/2021/2622/LAWP
Certificate of lawfulness for the erection of extension to the rear of the hospital building to the northeast to provide for an evacuation area for plus sized patients.
Queen Victoria Memorial Hospital 73 School Lane Welwyn AL6 9PW
Received 9 Sept 2021
Decided - GrantedN6/2013/0715/TP
Crown clean, reduce crown volume by 10-15% of Turkey Oak T9 covered by TPO126
1 Hensley Close Welwyn AL6 9QD
Received 8 Apr 2013
Decided - Granted6/2022/0928/EM
Erection of single storey garden shed
64 Moorlands Welwyn Garden City AL7 4QG
Received 20 Apr 2022
Decided - Granted6/2019/1960/EM
Fell 1 x Conifer Fell 1 x Holly tree Crown lift 1 x Oak Tree to clear upto 5m and remove deadwood
25 Woodland Rise Welwyn Garden City
Received 8 Aug 2019
Decided - Granted6/2017/0652/HOUSE
Erection of single storey glazed extension
35 Station Road Digswell Welwyn AL6 0EA
Received 31 Mar 2017
Decided - Granted6/2025/0438/EMT
Removal of aged purple plum tree
44 Crossway Welwyn Garden City AL8 7EE
Received 10 Mar 2025
Decided - Granted6/2020/2814/OUTLINE
Outline permission for the removal of existing bungalow and replacement with 2 x detached dwellings with all matters reserved
9 Sycamore Avenue Hatfield AL10 8LZ
Received 22 Oct 2020
Decided - Granted6/2020/1320/EMT
Reduce 1 x Leyland Cypress by 6m height & 2.5m width
12 Homerfield Welwyn Garden City AL8 6QZ
Received 9 Jun 2020
Decided6/2019/1920/TC
Fell 1x Fir tree covered by conservation area
23 Barleycroft Road Welwyn Garden City AL8 6JX
Received 31 Jul 2019
Decided - Granted6/2016/0460/COND
Approval of details reserved by condition 3 (protection of the mature Copper Beech tree) on planning permission N6/2015/0289/FP
55 Longcroft Lane, Welwyn Garden City, AL8 6EB
Received 15 Mar 2016
Decided6/2022/1573/COND
Confirmation that all conditions on planning reference N6/2015/0034/MA have been discharged
Broadwater House Broadwater Road Welwyn Garden City AL7 3AX
Received 5 Jul 2022

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