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28,876 approved · 4,802 refused · 2,208 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2015/2178/ADV
External signage for car dealership and forecourt
S & B Commercials Plc Travellers Lane Welham Green Hatfield AL9 7HN
Received 23 Oct 2015
Decided - Granted6/2019/0067/LAWP
Certificate of lawfulness for a hardstanding driveway, removal of boundary hedges and tree and installation of a fence
215 Knella Road Welwyn Garden City AL7 3NT
Received 12 Jan 2019
Decided - GrantedN6/2007/0659/FP
ERECTION OF 6FT FENCE TO REAR SIDE BOUNDARY, ADJACENT TO FOOTPATH.
60 Warren Way Digswell Welwyn AL6 0DN
Received 27 Apr 2007
Decided - GrantedN6/2014/2074/NM
Non material amendment following approval of planning permission N6/2013/0491/MA - Changes to Landscaping and Parking to cater for revised road layout
St Mary Magdalene Vicarage Hollybush Lane Welwyn Garden City AL7 4JS
Received 19 Sept 2014
Decided - Granted6/2023/2230/HOUSE
Erection of single-storey rear extension and installation of front dormer and rooflight to the rear roofslope. Alterations to the front bay window to form a new pitched roof and alterations to the fenestration, including a rear juliet balcony
12 Bradmore Way Brookmans Park Hertfordshire AL9 7QX
Received 2 Nov 2023
Decided - Granted6/2016/0301/HOUSE
Erection of single storey ground floor rear extension
22 Caponfield, Welwyn Garden City, AL7 4AP
Received 23 Feb 2016
Decided - GrantedW6/2015/0757/TE
Removal of Lime tree
12 Beehive Green, Welwyn Garden City, AL7 4BE
Received 7 Apr 2015
Decided - Granted6/2015/2489/TPO
Reduce Ash tree crown by 30% and reduce Apple tree crown by 25% - Conservation Area.
86 Attimore Road, Welwyn Garden City, AL8 6LP
Received 10 Dec 2015
Decided - RefusedN6/2014/0087/FP
Erection of outbuilding following demolition of existing outbuilding
Woodside Cottage, 2 Cromer Hyde Lane, Lemsford, Welwyn Garden City, AL8 7XE
Received 16 Jan 2014
Decided - Granted6/2018/0115/PN15
Prior approval for the installation of 1 x 15m high monopole with 3 x antennas situated within the pole, 2 x 0.6m dishes and 3 x ground based equipment cabinets
Land off Travellers Lane Welham Green Hatfield AL9 7JB
Received 12 Jan 2018
Decided - Granted6/2025/2501/HOUSE
Erection of side dormers and front and rear hip-to-gable enlargement to facilitate loft conversion to habitable space, installation of windows and increase height of boundary treatment to facilitate new rear decking area
3 Burleigh Way Cuffley Potters Bar EN6 4LJ
Received 2 Dec 2025
Decided - Granted6/2017/2259/COND
Submission of details pursuant to conditions 1 (material samples) & 2 (details of roof eaves & verges, door and windows) on planning permission 6/2017/0472/HOUSE
2 Ruins Cottages Hill Farm Lane Welwyn AL6 9BU
Received 4 Oct 2017
Appeal Decided - Allowed6/2023/0566/HOUSE
Erection of part single - part double-storey rear extension and changes to fenestration following demolition of existing garage
2 Mannicotts Welwyn Garden City Hertfordshire AL8 7BW
Received 13 Mar 2023
Under Consideration6/2026/1142/HOUSE
Erection of a front boundary timber fence
77 Jasmine Gardens Hatfield AL10 0BN
Received 1 Jul 2026
Decided - Granted6/2021/1332/HOUSE
Demolition of existing outbuilding to the rear of the garage and new side extension with rooflights and new openings to rear elevation. Part garage conversion. New roof to garage and extension.
7 Aldock Welwyn Garden City AL7 4QF
Received 26 Apr 2021
Decided - RefusedW6/2008/1161/EM
INSTALLATION OF REAR DORMER
51 PEARTREE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3UA
Received 10 Jul 2008
Decided - GrantedN6/2009/1563/FP
ERECTION OF TWO STOREY SIDE AND SINGLE STOREY REAR EXTENSION
9 CROSSWAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7ED
Received 21 Jul 2009
Decided - Granted6/2024/1673/HOUSE
Conversion of the garage into a habitable room, erection of part single, part double storey front extension, first floor rear extension. Alterations to the roof including, raising the ridge and formation of crown roof with front and rears dormers and replacement roof tiles and the re-positioning of windows and doors and new render to external walls
15 Mymms Drive Brookmans Park AL9 7AE
Received 2 Sept 2024
Decided - GrantedW6/2013/1960/TE
Removal of dangerous limb from Hornbeam tree located in rear garden
13 Sherrardspark Road, Welwyn Garden City, AL8 7JW
Received 17 Sept 2013
Decided - Granted6/2015/1878/HOUSE
Replacement of existing garden shed and gate
9 Guessens Grove, Welwyn Garden City, AL8 6RF
Received 4 Sept 2015
Decided - WithdrawnN6/2004/1509/FP
INSTALLATION OF 5 METRE LIGHTING COLUMNS TO GARAGE FORECOURTS
GARAGES 1 - 33 AT, DANIELLS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1QY
Received 8 Oct 2004
Decided - GrantedN6/2015/1250/S73B
Variation of condition 2 (drawings) of planning permission N6/2015/0133/FP - Demolition of existing rear extension and erection of replacement single storey rear extension, garage conversion and change of use of class C3 (dwelling) to a Sui-Generis mixed use comprising Use Class C3 Dwelling and Use Class D1 Chiropractors
32 Great North Road Welwyn Garden City AL8 7TJ
Received 15 Jun 2015
Decided - GrantedN6/2008/2166/FP
ERECTION OF TWO STOREY AND SINGLE STOREY REAR EXTENSION
66 VALLEY ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7DN
Received 12 Nov 2008
Decided - Granted6/2025/0374/HOUSE
Erection of single storey rear and side extension with landscaping works and new chimney
31 Turpins Chase Welwyn AL6 0RP
Received 27 Feb 2025

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