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28,876 approved · 4,802 refused · 2,208 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Decided6/2021/1195/TC
Crown reduce 1 x Ash by 30%
10 Homerfield Welwyn Garden City AL8 6QZ
Received 13 Apr 2021
Decided - Refused6/2020/2884/PN8
Prior Approval for proposed single storey rear extension with associated internal alteration
85 Wellfield Road Hatfield AL10 0BY
Received 2 Nov 2020
Decided - Granted6/2018/2154/COND
Submission of details pursuant to condition 2 (crown roof detail) on planning permission 6/2018/1399/HOUSE
104 Brookside Crescent Cuffley Potters Bar EN6 4QL
Received 20 Aug 2018
Decided - Granted6/2025/2495/HOUSE
Erection of a single story side extension and new entrance porch to side of property
30 St Albans Road East Hatfield AL10 0EH
Received 1 Dec 2025
Decided - GrantedC6/1987/0490/FP
Two storey side and single storey rear extension
6 Little Rivers, Welwyn Garden City, AL7 1QJ
Received 1 Jan 1987
Decided - WithdrawnN6/2014/0655/HH
Prior approval for single storey rear extension - INVALID APP
30 Beehive Green Welwyn Garden City AL7 4BG
Received 28 Feb 2014
Decided - Granted6/2015/2425/COND
Approval of details reserved by condition 7 (materials) and condition 8 (fenestration plan) on planning application W6/2014/1308/EM
7 Densley Close, Welwyn Garden City, AL8 7JX
Received 16 Oct 2015
Decided - GrantedS6/2008/1181/DS
DISCHARGE OF CONDITION 3 OF PLANNING PERMISSION S6/2007/0948/FP (PARKING)
31 The Gardens, Hatfield, AL9 7UL
Received 22 Jul 2008
Appeal Decided - DismissedS6/2008/0276/OP
OUTLINE PLANNING PERMISSION FOR ERECTION OF ONE DETACHED CHALET BUNGALOW (WITH ALL MATTERS RESERVED EXCEPT ACCESS AND LAYOUT)
51 ROE GREEN CLOSE, HATFIELD, HERTS, AL10 9PF
Received 28 Apr 2008
Decided - GrantedN6/2013/1909/TP
T1-T4 Western Red Cedars, crown lift to 3-4m, T5 – Western Red Cedar, Fell to ground level, T7 – Western Red Cedar, reduce secondary stem by 3-4m and install a non invasive bracing system if necessary and crown lift to 3-4m to match T4, all covered by TPO 266 G1 & G2.
2 The Dell Digswell Welwyn AL6 0BQ
Received 4 Sept 2013
Decided6/2020/1842/TC
Fell T1 and T2 Sycamores, removal of six main stems on 3 Sycamores (G3) - in a conservation area
Ayot Farm Bibbs Hall Lane Welwyn AL6 9BY
Received 27 Jul 2020
Decided - GrantedS6/2012/2485/FP
Erection of single storey front extension
28 Brookside Crescent, Cuffley, POTTERS BAR, EN6 4QN
Received 22 Nov 2012
Decided - Granted6/2022/1437/ADV
Installation of 1 no. proposed illuminated fascia sign to external cladding at high level of front north elevation.
11 Bessemer Road Welwyn Garden City AL7 1GF
Received 21 Jun 2022
Decided - Granted6/2017/0538/LAWP
Certificate of lawfulness for the erection of a single storey rear infill extension with rear garden glazing (french sliding/folding doors), flat roof and installation of 3 rooflights.
33 Springfields Welwyn Garden City AL8 6XT
Received 15 Mar 2017
Decided - Granted6/2019/0414/HOUSE
Conversion of existing garage into utility, storage and WC with replacement of garage door brickwork and alterations to openings
6 Chedburgh Welwyn Garden City AL7 2PU
Received 25 Feb 2019
Decided - WithdrawnN6/2007/1990/FP
CHANGE OF USE OF AGRICULTURAL LAND TO FORM STORAGE AREA WITH VEHICLE MANOEUVRING SPACE
59A London Road Woolmer Green Knebworth SG3 6JE
Received 31 Dec 2007
Decided - Granted6/2017/0527/VAR
Variation of condition 1 (Approved plans) on planning permission 6/2016/0322/HOUSE (Erection of a first floor rear extension together with roof alterations)
48A Harmer Green Lane Digswell Welwyn AL6 0AT
Received 16 Mar 2017
Decided - Granted6/2018/1626/HOUSE
Erection of single storey rear extension following demolition of existing conservatory
3 Peplins Close Brookmans Park Hatfield AL9 7UX
Received 19 Jun 2018
DecidedN6/2008/1740/TC
MAINTENANCE TO ASH TREE IN REAR GARDEN
2 FEARNLEY ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6HW
Received 11 Sept 2008
Decided - Granted6/2025/1801/HOUSE
Erection of single storey front extension and single storey rear extension.
10 Hill Ley Hatfield AL10 8LX
Received 26 Aug 2025
Decided - GrantedW6/2015/0752/EM
Replacement of chimney stack
6 High Oaks Road, Welwyn Garden City, AL8 7BH
Received 8 Apr 2015
Decided - GrantedC6/1987/0294/FP
Single storey rear extension
41 Elmwood, Welwyn Garden City, AL8 6LD
Received 1 Jan 1988
Decided - GrantedW6/2014/0577/EM
Erection of single storey rear extension
35 Middlefield, Welwyn Garden City, AL7 4DQ
Received 18 Mar 2014
Decided - Granted6/2020/1636/FULL
Replace of windows with uPVC
143-153 Longcroft Lane Welwyn Garden City AL8 6EL
Received 8 Jul 2020

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