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

40,250Searchable applications

321Recorded as pending

86%Approval rate · 33,746 approved or refused records

4,812Refused applications

28,934 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2007/1536/LU
INSTALLATION OF A REAR DORMER AND RECONFIGURATION OF ROOF TO EXISTING REAR CONSERVATORY FROM PITCHED ROOF TO A FLAT ROOF
18 SWANLEY CRESCENT, BROOKMANS PARK, POTTERS BAR, HERTFORDSHIRE, EN6 1NQ
Received 17 Oct 2007
Decided - RefusedW6/2007/0526/EM
ERECTION OF SINGLE STOREY SIDE EXTENSION AND FORMATION OF HARDSTANDING AND CROSSOVER.
10 Ingles, Welwyn Garden City, AL8 7HL
Received 2 Apr 2007
Appeal Decided - DismissedS6/2009/2676/FP
RETENTION OF FRONT GARDEN WALL, PIERS AND GATES
27 Mymms Drive, Hatfield, AL9 7AF
Received 14 Dec 2009
Decided - Granted6/2018/0074/EM
Reduce 2 x Birch to thin crown by 20%
141 Oakdale Welwyn Garden City AL8 7QS
Received 10 Jan 2018
Decided - Granted6/2021/1570/EMH
Erection of first floor side extension, ground floor side extension, first floor rear extension to facilitate loft conversion, fenestration alterations and replacement of chimney
46 Blakemere Road Welwyn Garden City AL8 7PJ
Received 17 May 2021
Decided - Granted6/2020/3365/HOUSE
Erection of boundary wall and gate fronting the highway plus a raised patio to the rear garden
150 Tolmers Road Cuffley Potters Bar EN6 4JR
Received 15 Dec 2020
Decided - Refused6/2023/1762/EMT
T4113 -Ash- remove hazardous Deadwood G4118 -Mixed Species Group x 11 -hedge trim/reduce back to boundary roadside T4110 -Cherry -remove hazardous Deadwood T3 -Oak -crown lift to approx 2.5m G11214 -Mixed Species Group x28 -crown lift group to approx 2.5m and reduce lateral branches back to boundary both roadside and garden side. Ash tree to reduce to provide clearance removing up to 2.5m G4107 -Mixed Species Group x4 -reduce lateral branches to provide 1-1.5m clearance T4123 -Pear -crown reduce removing up to 2m T4122 -Apple -crown reduce removing up to 2m G4112 -Mixed Species Group x 8- crown lift roadside to approx 2.5m and reduce lateral branches to clear phone cables by approx 1m
19 Meadow Green Welwyn Garden City AL8 6SS
Received 21 Aug 2023
Decided - GrantedN6/2015/1049/OR
Prior approval for the change of use of three buildings from office use (Use Class B1) to 210 residential dwellings (Use Class C3).
Development Park Enterprise Centre Xerox, Bessemer Road, Welwyn Garden City, AL7 1HE
Received 18 May 2015
Decided - Refused6/2019/1277/FULL
Retention of single storey rear extension and two canopies
Judge's, Judge's Hill Northaw Potters Bar EN6 4NL
Received 20 May 2019
Decided - Granted6/2019/2345/COND
Submission of details pursuant to condition 25 (Materials) on planning permission 6/2017/2104/MAJ
51 Bridge Road East Welwyn Garden City AL7 1JR
Received 23 Sept 2019
Decided - Granted6/2017/1242/FULL
Erection of single storey side and rear extension and alterations to openings to facilitate conversion of existing single dwelling into 5no, 1-bedroom flats.
2 St Albans Road East Hatfield AL10 0HE
Received 7 Jun 2017
Under Consultation6/2026/1646/LB
Roof repairs and ancillary works associated with the Grade I Listed Hatfield House
Hatfield House Hatfield Park Great North Road Hatfield AL9 5NF
Received 21 Sept 2026
Decided - Granted6/2017/1457/EM
Fell two sycamore trees
58 Boundary Lane Welwyn Garden City AL7 4DP
Received 4 Jul 2017
Decided - Granted6/2020/2720/EM
Erection of wooden garden shed on concrete base
27 Elmwood Welwyn Garden City AL8 6LD
Received 19 Oct 2020
Decided - Granted6/2022/2261/TPO
Reduce T1, T2, T3, T4, T5, T6, T9 Hornbeam back to previous cuts and remove epicormic growth. Remove dead wood from T7, T8, T9, T10 and T11 Oak and remove epicormic growth. Crown lift and thin by 20% T12 Hornbeam. Trees covered by TPO 674 (2017) G1
16A Oaklands Rise Welwyn AL6 0RN
Received 29 Sept 2022
Decided - Refused6/2025/2592/HOUSE
Proposed two storey rear extension, garage conversion, replacement roof over the converted garage, new front door and alteration to fenestration.
32 Hertford Road Digswell Welwyn AL6 0DB
Received 17 Dec 2025
Decided - GrantedW6/2013/2726/TE
Removal of dangerous tree
6 Hillside, Welwyn Garden City, AL7 4PZ
Received 24 Dec 2013
Decided6/2020/0737/TC
Reduce 1 x Apple by 30% Reduce 1 x Yew Tree [T1] by 30% Reduce 1 x Yew Tree [T2] by 30%
5 Homerfield Welwyn Garden City AL8 6QZ
Received 17 Mar 2020
Decided - Refused6/2025/0051/LAWP
Certificate of lawfulness for the erection of single storey rear and side extensions, hipped to gable loft conversion with rear dormer and front roof lights, alterations to fenestration and removal of chimney.
69 Westland Drive Brookmans Park AL9 7UG
Received 14 Jan 2025
Decided - Granted6/2020/2395/EMT
Fell 1 x Ash Tree
10 Hillside Welwyn Garden City AL7 4PZ
Received 18 Sept 2020
Decided - Granted6/2021/3535/HOUSE
Erection of a two storey rear extension
11 Cecil Crescent Hatfield AL10 0HF
Received 22 Dec 2021
Decided6/2026/0044/TC
Fell dead/dying plum tree
19 High Oaks Road Welwyn Garden City AL8 7BJ
Received 13 Jan 2026
Decided - GrantedW6/2004/1259/EM
ERECTION OF GREENHOUSE AND GARDEN SHED TO REAR OF PROPERTY
129 Boundary Lane, Welwyn Garden City, AL7 4EQ
Received 18 Aug 2004
Decided - Granted6/2025/1669/TPO
1. Crown Reduction: Appox. 35-foot-tall Silver Birch (Betula Pendula) growing to the right of the garden is to undergo a sympathetic Crown Reduction of 30% (9-11 feet / 3-4 meters) due to being overgrown with large limbs overhanging into the garden close to ground level 2. Crown Reduction: Approx. 35-foot-tall Walnut (Juglans Regia) tree growing at the very bottom of the garden is to undergo a sympathetic Crown Reduction of up to 30% (10-12 feet / 3-4 meters) due to becoming too large and out of shape 3. Removal: Fire damaged and unsafe 30-feet-tall multi-stemmed Field Maple (Acer Campestre) at the bottom left of the garden is to be removed to remove the risk of harm to persons or property.
55 Warren Way Digswell Welwyn AL6 0DL
Received 4 Aug 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

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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.

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