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

40,154Searchable applications

303Recorded as pending

86%Approval rate · 33,678 approved or refused records

4,802Refused applications

28,876 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 3 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2015/0348/FP
Conversion of front part inverted dormer to standard dormer. Installation of rear dormer windows to existing loft room
54 High Road, Hatfield, AL9 6AP
Received 23 Feb 2015
Decided - Refused6/2019/1843/HOUSE
Erection of front, side and rear single storey extensions; erection of front porch; conversion of existing store with installation of rooflight; conversion of loft into habitable accommodation with erection of a rear dormer window and installation of two front rooflights; and removal of chimney stack
9 Two Oaks Drive Welwyn AL6 0EZ
Received 25 Jul 2019
Decided - Split6/2025/1729/COND
Submission of details pursuant to condition number 11 part b (site investigation and post investigation assessment) on planning permission 6/2024/0908/MAJ
Norton Building Bridge Road East Welwyn Garden City AL7 1JR
Received 14 Aug 2025
Decided - GrantedS6/2015/1168/LUP
Certificate of lawfulness for the proposed development of a loft conversion with a rear dormer window and rooflights on front slope
32 Peplins Way, Brookmans Park, Hatfield, AL9 7UU
Received 2 Jun 2015
Decided - GrantedS6/2014/1591/FP
Erection of a two storey side extension with front facing dormer and a single storey rear extension plus various alterations to internal layout, fenestration and front and rear elevations (variation of approved application S6/2012/0208/FP)
12 Bradgate, Cuffley, Potters Bar, EN6 4RL
Received 15 Jul 2014
Decided - Withdrawn6/2021/2237/EMH
Erection of a driveway to the front of the property
22 Harwood Close Welwyn Garden City AL8 7SN
Received 26 Jul 2021
Decided - GrantedS6/2007/1558/FP
ERECTION OF TWO STOREY AND SINGLE STOREY REAR EXTENSION AND DORMER WINDOWS TO FRONT AND REAR ROOF ELEVATION AND ERECTION OF SINGLE STOREY FRONT EXTENSION INCORPORATING A PORCH
56 PINE GROVE, BROOKMANS PARK, HATFIELD, HERTS, AL9 7BW
Received 23 Oct 2007
Decided - Granted6/2026/1588/EM
Erection of wooden garden room to replace existing shed in rear garden
41 Attimore Road Welwyn Garden City AL8 6LG
Received 11 Sept 2026
Decided - GrantedW6/2013/2355/TE
Repollard Six Lime trees and Reduce Sycamore and Mixed Hedge back to 8ft
9 Youngs Rise, Welwyn Garden City, AL8 6RT
Received 24 Oct 2013
DecidedN6/2015/1092/MB
Prior approval for a proposed change of use of agricultural building to a dwellinghouse (Use Class C3) and associated building operations
The Barn Digswell Park Road
Received 27 May 2015
Decided - Refused6/2025/2541/EMT
T1 Yew to fell. T2 Weeping Silver birch to lift to 3 metres. T3 Lime x 2 to reduce by 5 metres in height. T4 Conifer to fell. T5 Silver birch to crown reduce by 2m all round. T6 Tree of heaven to crown reduce by 2-3m.
338 Knightsfield Welwyn Garden City AL8 7NQ
Received 8 Dec 2025
Decided6/2019/1837/TC
Fell 1 x Fir tree
69 Beehive Lane Welwyn Garden City AL7 4BN
Received 25 Jul 2019
Decided - Granted6/2016/0577/EM
Replacement of rear garden shed
15 Barleycroft Green, Welwyn Garden City, AL8 6JY
Received 4 Apr 2016
Decided - GrantedW6/2013/0463/EM
Conversion of garage to habitable accommodation
21 Elmwood, WELWYN GARDEN CITY, AL8 6LD
Received 27 Feb 2013
Decided - GrantedN6/2013/0234/FP
Erection of single storey rear extension
8 Langstone Ley, WELWYN GARDEN CITY, AL7 1FQ
Received 4 Feb 2013
Decided - Granted6/2016/2667/HOUSE
Erection of single storey rear extension
36 Hertford Road Digswell Welwyn AL6 0DB
Received 15 Dec 2016
Decided - GrantedN6/2014/2538/FP
Erection of single storey side extension
9 Reddings Welwyn Garden City AL8 7LA
Received 19 Nov 2014
Appeal Decided - Dismissed6/2015/2002/HOUSE
Replacement of outbuildings following fire
22 Homestead Lane, Welwyn Garden City, AL7 4LU
Received 28 Sept 2015
Decided - GrantedS6/2009/2564/DS
CONFIRMATION OF COMPLIANCE WITH CONDITION 1 (USE CLASSES) OF PLANNING PERMISSION S6/2005/0772/FP
Unit 16 The IO Centre Hearle Way Hatfield AL10 9EW
Received 17 Nov 2009
Decided - RefusedW6/2014/0808/EM
Installation of solar panels on the front roof
4 Ethelred Close, Welwyn Garden City, AL7 3QF
Received 14 Apr 2014
Decided - Refused6/2018/0824/FULL
Erection of vehicle workshop, boundary wall, installation of access gates, relocated steel fence and associated parking and landscaping.
65 Bishops Rise, Hatfield, AL10 9BY
Received 26 Mar 2018
Decided - Granted6/2026/0419/FULL
Retrospective change of use from a dwellinghouse (use class C3) to a 4 bedroom HMO (use class C4) and installation of a bike shed
15 Ely Close Hatfield AL10 0DW
Received 6 Mar 2026
Decided - GrantedW6/2008/1317/EM
EXTENSION TO HARDSTANDING
48 BROCKSWOOD LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BG
Received 29 Jul 2008
Decided - Granted6/2023/2246/HOUSE
Erection of a single storey side / rear extension with insertion of roof lantern, following demolition of existing porch and re-siting of existing garage
9 Lytton Gardens Welwyn Garden City AL8 6EG
Received 6 Nov 2023

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