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28,874 approved · 4,802 refused · 2,208 withdrawn.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: 31 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 Counts reflect the last collected status; some records may be out of date.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 - Withdrawn6/2016/1970/LAWE
Certificate of lawfulness for a loft conversion with rear dormer window and hipped roof changed to gable
71 Peplins Way, Brookmans Park, Hatfield, AL9 7UT
Received 26 Sept 2016
Decided - GrantedW6/2014/0503/EM
Erection of ground floor rear extention to garage
86 Valley Road, Welwyn Garden City, AL8 7DP
Received 6 Mar 2014
Decided - Granted6/2016/0556/EM
Installation of first floor window
93 Ingles, Welwyn Garden City, AL8 7HF
Received 1 Apr 2016
Decided - Granted6/2021/1968/EM
Erection of first floor rear extension with alteration to openings
94 The Commons Welwyn Garden City AL7 4SB
Received 29 Jun 2021
Decided - RefusedN6/2007/1525/FP
CONVERSION AND EXTENSION OF EXISTING PUMPHOUSE TO FORM A NEW DWELLING , WITH ASSOCIATED ACCESS & PARKING
Pump House Orchard Road Welwyn AL6 9EX
Received 15 Oct 2007
Decided6/2021/0330/TC
Reduce 1 x Maple tree by 30%
23 Elmwood Welwyn Garden City AL8 6LD
Received 3 Feb 2021
Decided - GrantedW6/2004/0294/EM
ERECTION OF REAR GARDEN SHED
245 Handside Lane, Welwyn Garden City, AL8 6TF
Received 2 Mar 2004
Decided - Granted6/2025/1037/EM
Retrospective permission for installation of new windows
16 Attimore Close Welwyn Garden City AL8 6LN
Received 2 Jun 2025
Decided - Granted6/2024/2328/FULL
Change of use from general amenity land to residential driveway and residential grass land.
1 The Orchard Welwyn Garden City AL8 7PL
Received 3 Dec 2024
Decided - Granted6/2025/2437/EM
Retention of summerhouse
60 Peartree Lane Welwyn Garden City AL7 3UH
Received 21 Nov 2025
Decided - WithdrawnN6/2007/1010/FP
ERECTION OF A FRONT BOUNDARY WALL
65 Robbery Bottom Lane Welwyn AL6 0UL
Received 4 Jul 2007
Decided - Granted6/2021/1137/LAWE
Certificate of lawfulness for the existing outbuilding
43 The Grove Hatfield AL9 7RL
Received 7 Apr 2021
Decided - GrantedW6/2013/2549/TE
Removal of 2 branches from Walnut tree and reduction of crown by 15%
66 Valley Road, Welwyn Garden City, AL8 7DN
Received 1 Nov 2013
Decided - Granted6/2020/0153/TPO
Pollard 1x Hornbeam trees (T1) Crown lift to 5m 2x Hornbeam (T2 &T3) Fell 1x Holly trees (T4)
11 Warren Way Digswell Welwyn AL6 0DQ
Received 22 Jan 2020
Decided - Granted6/2023/1929/HOUSE
Erection of single storey rear extension with a flat roof, skylight and external rear and side doors, raising of the garage roof and garage conversion, proposed first floor Juliet balcony and fenestration alterations
12 The Holt Welwyn Garden City AL7 2HU
Received 19 Sept 2023
Decided - GrantedS6/2004/0362/FP
ERECTION OF REAR CONSERVATORY
87 Dellsome Lane Welham Green Hatfield AL9 7NE
Received 10 Mar 2004
Decided - Granted6/2021/0275/HOUSE
Erection of a proposed detached outbuilding to be used for ancillary accommodation
37 Rosedale Welwyn Garden City AL7 1DW
Received 29 Jan 2021
Decided - Granted6/2019/3243/COND
Submission of details pursuant to condition 3 (sample of materials) on planning permission N6/2014/1376/FP
The Limes (Plas-Y-Coed) Digswell Lane Welwyn AL6 0SN
Received 19 Dec 2019
Decided - GrantedS6/2009/1120/FP
ERECTION OF RECEPTION BUILDING
UNIVERSITY OF HERTFORDSHIRE, DE HAVILLAND CAMPUS, MOSQUITO WAY, HERTFORDSHIRE, AL10
Received 2 Jun 2009
Decided - Granted6/2020/3404/HOUSE
Conversion of single garage to home office
75 Broomhills Welwyn Garden City AL7 1RE
Received 21 Dec 2020
Decided - GrantedS6/2007/0284/FP
ERECTION OF SINGLE STOREY REAR EXTENSION
44 Cranfield Crescent Cuffley Potters Bar EN6 4EA
Received 26 Feb 2007
Decided - Granted6/2019/0310/HOUSE
Erection of part single storey, part two storey front and rear extensions incorporating the insertion of front, side and rear dormer windows to facilitate a loft conversion
33 The Meadway Cuffley Potters Bar EN6 4ET
Received 11 Feb 2019
Decided - Granted6/2021/0307/EM
Vehicle crossing and formation of hardstanding in front garden.
3 Sandpit Road Welwyn Garden City AL7 3TW
Received 1 Feb 2021
Decided - Granted6/2021/1525/HOUSE
Erection of single storey side extension and garage conversion
101 Hatfield Road Little Heath Potters Bar EN6 1HZ
Received 13 May 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