Council hub · East of England
Welwyn Hatfield planning applications
4,144 applications. 90% approved. 58 days to decide.
As of October 2026, PlanIndex holds 4,144 planning applications from Welwyn Hatfield. 836 were decided in the trailing 12 months, with 90% of clear-cut outcomes approved.
Welwyn Hatfield: 1,113 applications received in the last year, 836 decisions published.
Welwyn Hatfield takes a median of 58 days to decide a planning application. See how that compares.
All applications
Newest first · page 1 of 83
-
6/2026/1730/EM Awaiting decision
6 Melbourne Court Welwyn Garden City AL8 6LL
Alterations to front and side elevations of the house and adding an EV charger to front elevation
-
6/2026/1693/COND Awaiting decision
114 Parkway Welwyn Garden City AL8 6HN
Submission of details pursuant to Condition 1 (details of block paving) and 2 (drawings of doors, rooflight and windows) on planning permission 6/2026/0403/HOUSE
-
6/2026/1697/EM Awaiting decision
74 Valley Road Welwyn Garden City AL8 7DP
Removal of front hedgerow and replace with planted flowers
-
6/2026/1689/MAJ Awaiting decision
Howlands House Howlands Welwyn Garden City AL7 4QJ
Erection of a single 3 and 4-storey building comprising 44 temporary accommodation homes, staff office and laundry facilities, children's play space, cycle and vehicular parking, associated servicing, plant enclosure, substation, landscaping and external works.
-
6/2026/1688/EM Awaiting decision
124 Parkway Welwyn Garden City AL8 6HN
Proposed portico to front and side entrances, new dormer windows to existing roof space, new/repositioned rooflights on main roof and new/repositioned windows on the rear elevation
-
6/2026/1682/HOUSE Awaiting decision
63 Parkway Welwyn Garden City AL8 6JF
Addition of solar panels to roof (front and rear)
-
6/2026/1686/PN8 Awaiting decision
65 Maple Grove Welwyn Garden City AL7 1NN
Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 2.75m to the eaves
-
6/2026/1653/EM Awaiting decision
10 Handside Green Welwyn Garden City AL8 6SQ
Erection of a shed at read garden, replace rear garden gate and fencing and removing an internal Leylandii hedge
-
6/2026/1654/EMT Awaiting decision
76 Brockswood Lane Welwyn Garden City AL8 7BQ
T1 - Ash tree - 2-3 crown reduction, remove deadwood T2 - Oak tree - 2-3m crown reduction T3 - Oak tree - crown reduction back too previous growth points T4 - Oak tree - 2-3m crown reduction T5 - Hornbeam - 5m crown lift T6 T7 T8 - Hornbeams - 2-3m crown reductions
-
6/2026/1640/TC Awaiting decision
76 Brockswood Lane Welwyn Garden City AL8 7BQ
T1 - Ash tree - 2-3 crown reduction, remove deadwood T2 - Oak tree - 2-3m crown reduction T3 - Oak tree - crown reduction back too previous growth points T4 - Oak tree - 2-3m crown reduction T5 - Hornbeam - 5m crown lift T6 T7 T8 - Hornbeams - 2-3m crown reductions
-
6/2026/1649/FULL Awaiting decision
17A The Broadway Hatfield AL9 5HZ
Erection of canopy
-
6/2026/1646/LB Awaiting decision
Hatfield House Hatfield Park Great North Road Hatfield AL9 5NF
Roof repairs and ancillary works associated with the Grade I Listed Hatfield House
-
6/2026/1660/EM Awaiting decision
118 Dawley Welwyn Garden City AL7 1DX
Installation of an air to air heatpump - external unit and ducting on side elevation
-
6/2026/1645/HOUSE Awaiting decision
18 Great North Road Welwyn AL6 0PS
Erection of front porch and car port
-
6/2026/1643/FULL Awaiting decision
Knebworth Care Home 59 London Road Woolmer Green SG3 6JE
Reconfiguration and extension of the existing car parking provision to provide 10 additional parking spaces, relocation of cycle parking, enlarged refuse/bin store, associated hard and soft landscaping, removal of two existing trees, relocation of an existing shed, and associated site works
-
6/2026/1632/FULL Awaiting decision
19 Pine Grove Brookmans Park AL9 7BP
Erection of dwelling following the demolition of existing dwelling
-
6/2026/1634/HOUSE Awaiting decision
11 Lords Wood Welwyn Garden City AL7 2HF
Proposed garage conversion, widening of driveway to include a new parking space and erection of a garden room
-
6/2026/1635/HOUSE Awaiting decision
5 Old French Horn Lane Hatfield AL10 8AH
Replace existing boundary fence with 1m brick wall and 1.5m piers and hedge
-
6/2026/1633/FULL Awaiting decision
23 The Ridgeway Cuffley EN6 4BB
Erection of new 5 bed dwelling following the demolition of existing dwelling
-
6/2026/1636/HOUSE Awaiting decision
22 Digswell Road Welwyn Garden City AL8 7PA
Installation of an air conditioning/heat pump unit & alterations to side elevation window
-
6/2026/1638/EM Awaiting decision
14 Cole Green Lane Welwyn Garden City AL7 3PW
Installation new hard standing and alterations to landscaping
-
6/2026/1616/TPO Awaiting decision
HMWT Gobions Wood Nature Reserve Off Mymms Drive Potters Bar AL9 7AF
Mature Ash tag 895 with multiple cavities and evidence of long term Inonotus hispidus decay with multiple fruiting bodies on stem and around the tree on the ground Heavily declining Hawthorn tag 487, adjacent to and leaning over carpark, fell to fence height, all arisings removed Mature multi-stemmed Ash tag 35 tree has multiple inclusions with decay and leans over carpark, fell to fence height, all arisings removed
-
6/2026/1630/EMT Awaiting decision
34 Fordwich Road Welwyn Garden City AL8 6EY
T1 Conifer - removal of the tree down to a stump
-
6/2026/1617/TC Awaiting decision
25 Longcroft Lane Welwyn Garden City AL8 6EB
1 x Apple to reduce by approximately 2.5m height and 2m width
-
6/2026/1623/EM Awaiting decision
5 Coneydale Welwyn Garden City AL8 7RX
EV Charger installation
-
6/2026/1631/EM Awaiting decision
22 Digswell Road Welwyn Garden City AL8 7PA
Installation of an air conditioning/heat pump unit and alterations to side elevation window
-
6/2026/1620/HOUSE Awaiting decision
68 Tolmers Road Cuffley Potters Bar EN6 4JY
Erection of front boundary dwarf wall, railings and gated entrances and battened fencing to left and right boundaries to front garden alongside hardstanding to frontage
-
6/2026/1612/VAR Awaiting decision
Land adjacent to 51 Great North Road Great North Road Stanborough Welwyn Garden City AL8 7TJ
Variation of Condition 15 (approved plans) on planning permission 6/2025/0654/FULL
-
6/2026/1611/COND Awaiting decision
The North Star 82 Great North Road Welwyn AL6 0TA
Submission of details pursuant of conditions 5 (noise), 6 (EV charging points), 7 (cycle storage), 10 (travel plan statement on planning permission 6/2026/0025/VAR
-
6/2026/1604/FULL Awaiting decision
London Road Woolmer Green SG3 6JE
Creation of an agricultural access
-
6/2026/1605/TC Awaiting decision
30 Valley Road Welwyn Garden City AL8 7DN
1 x Korean bee tree to re pollard back to existing pollard points
-
6/2026/1603/TC Awaiting decision
9 Dellcott Close Welwyn Garden City AL8 7BB
T1 x Oak to reduce by approximately 2m height and width. Remove epicormic growth from trunk up to crown break
-
6/2026/1608/EM Awaiting decision
11 Woodland Rise Welwyn Garden City AL8 7LJ
Replacement fenestration, insertion of rooflight, raising flat roof to accommodate insulation for part garage conversion
-
6/2026/1626/HOUSE Awaiting decision
11 Woodland Rise Welwyn Garden City AL8 7LJ
Raising of flat roof to accommodate insulation for part garage conversion, replacement fenestration and insertion of rooflight
-
6/2026/1607/EMT Awaiting decision
30 Valley Road Welwyn Garden City AL8 7DN
1 x Korean bee tree to re pollard back to existing pollard points Korean bee tree to reduce back to previous points - the tree has been historically pollarded and the works are to maintain the current maintenance cycle for the tree.
-
6/2026/1600/EM Awaiting decision
260 Heronswood Road Welwyn Garden City AL7 3JQ
Replacement front and back doors to improve security and insulation
-
6/2026/1594/TC Awaiting decision
34 Fordwich Road Welwyn Garden City AL8 6EY
Fell large Conifer
-
6/2026/1595/TPO Granted
42 New Road Digswell Welwyn AL6 0AH
T17 Pine and T74 Scots Pine are both dead and now dangerous (due to leaning). Covered by TPO 817 (2018)
-
6/2026/1592/HOUSE Awaiting decision
3 Lysley Place Brookmans Park AL9 6NZ
Erection of front porch canopy
-
6/2026/1588/EM Awaiting decision
41 Attimore Road Welwyn Garden City AL8 6LG
Erection of wooden garden room to replace existing shed in rear garden
-
6/2026/1587/HOUSE Awaiting decision
14 Ramblers Way Welwyn Garden City AL7 2JX
Addition of balcony to rear elevation
-
6/2026/1576/HOUSE Awaiting decision
28 Peplins Way Brookmans Park AL9 7UU
Erection of two-storey front and side extension, single-storey rear extension and a flat roof incorporating a glazed rooflight
-
6/2026/1582/EMT Awaiting decision
10 Pentley Park Welwyn Garden City AL8 7RU
T1- Bay tree - Fell to ground level as its outgrown its position and is interfering with the drains
-
6/2026/1586/TPO Awaiting decision
3 Wendover Drive Welwyn AL6 9LT
T1 - 1 x Beech tree - crown reduce by approx 2-3m - Remove any major deadwood throughout crown
-
6/2026/1581/EMT Awaiting decision
30 Fordwich Road Welwyn Garden City AL8 6EY
T1 - Silver Birch reduce by approximately 1.5m height and width. Remove deadwood greater than 30mm in diameter to allow a retained size, improving light to lower shrub bed T2 - Silver Birch reduce by approximately 1.5m height and width. Remove deadwood greater than 30mm in diameter to allow a retained size, improving light to lower shrub bed
-
6/2026/1578/EM Awaiting decision
1 The Orchard Welwyn Garden City AL8 7PL
Erection of single storey rear extension to partially replace existing extension
-
6/2026/1580/TC Awaiting decision
30 Fordwich Road Welwyn Garden City AL8 6EY
T1 - reduce by approximately 1.5m height and width. Remove deadwood greater than 30mm in diameter to allow a retained size, improving light to lower shrub bed T2 - reduce by approximately 1.5m height and width. Remove deadwood greater than 30mm in diameter to allow a retained size, improving light to lower shrub bed
-
6/2026/1577/HOUSE Awaiting decision
1 The Orchard Welwyn Garden City AL8 7PL
Erection of a single storey rear extension following the part demolition of existing single storey rear extension.
-
6/2026/1579/HOUSE Awaiting decision
55 Wood Common Hatfield AL10 0UE
Erection of part single, part two storey rear extension and the installation of two new windows within the side elevation
-
6/2026/1583/EM Awaiting decision
15 Bedwell Close Welwyn Garden City AL7 3XH
Installation of a roof-mounted solar photovoltaic (PV) system comprising seven solar panels located on the side and rear roof slopes of the existing dwelling, together with associated inverter and battery storage equipment positioned at the rear of the property. No solar panels are proposed on the front elevation, and no internal alterations to the dwelling are proposed.
Recent decisions
Data to October 2026
-
6/2026/1514/TPO Granted
6A Wendover Drive Welwyn AL6 9LT
T1 1 x Beech to remove in sections to ground level - Tree is almost dead and in poor condition T2 1 x Beech to reduce to clear property by 1.5m - Branches rubbing on property
-
6/2026/1523/EMT Granted
5 Hitherway Welwyn Garden City AL8 7RG
4 x Whitebeams to fell. No replanting
-
6/2026/1408/HOUSE Granted
Wytmead Essendon Hill Essendon Hatfield AL9 6AW
Reinstatement of the previously truncated chimney
-
6/2026/1360/VAR Granted
93 Salisbury Road Welwyn Garden City AL7 3RY
Variation of condition 2 (approved plans) on planning permission 6/2025/2622/HOUSE
-
6/2026/1300/EMT Granted
1 Perrywood Walden Road Welwyn Garden City AL8 7PZ
G1 - 2 x Beech and 3 x Hornbeams all hanging low over the footpath and road. Crown lift to 4m. T2 - Hornbeam growing very close to the building and low over the drive. To reduce back on building side by 1.5m and crown lift over the road to 4m.
-
6/2026/1497/TC Granted
2 Valley Road Welwyn Garden City AL8 7DF
1 x Holly to reduce height by approximately 3m height 1 x Lawson cypress to reduce by approximately 2.5m in height. 1 x Plum to reduce height by approximately 3m Above 3 are domination side of the garden, they are thick dense and evergreen. Reducing to allow more light into garden and control the size 1 x Apple to reduce lateral branches over lawn area by approximately 2m to reduce lateral branches over lawn to maintain size of tree & provide more space and light to lawn area 1 x Ash to reduce lateral branches over lawn area by approximately 2m to reduce lateral branches as now crossing half the garden and blocking light
-
6/2026/1440/TPO Granted
10 Mardley Heights Welwyn AL6 0TX
4 x English Oak (Quercus robur), identified as T1, T2, T3 and T4 on the accompanying sketch plan, protected under TPO 641 (2017). Proposed works: Crown reduction of up to 20%; crown thinning of up to 20%; crown lift to approximately 3–4m; removal of epicormic trunkal growth; selective pruning to provide approximately 2m clearance from the dwelling and approximately 1m clearance from overhead lines. Reason for works: Continued periodic arboricultural management of this established group of Oaks, maintaining appropriate clearance from the dwelling and overhead services whilst retaining a balanced, natural canopy and the amenity value of the trees.
-
6/2026/1495/EMT Granted
2 Valley Road Welwyn Garden City AL8 7DF
1 x Holly to reduce height by approx 3m height 1 x Lawson Cypress to reduce by approx 2.5m in height 1 x Plum to reduce height by approx 3m 1 x Apple to reduce lateral branches by approx 2m to reduce lateral branches over lawn 1 x Ash to reduce lateral branches over lawn area by approx 2m
-
6/2026/1470/TPO Granted
Glebe House Ellesfield Welwyn AL6 9HB
TPO 1016 1 x White Poplar to reduce upper canopy by approximately 10m height - Reduce upper canopy due to large volume of regrowth from historical reduction. Cavities and decay at old pruning wounds. Tree is close to neighbouring properties with a recent limb failure. 1 x White willow leaning over river to reduce by approximately 50% -tree is leaning heavily over river, reduction will prevent risk of failing. 1 x Goat willow to reduce by approximately 4m height and 3m width - tree is in decline, reduction is to stabilise upper canopy and allow retention of tree.
-
6/2026/1419/COND Granted
Howe Dell School The Runway Hatfield AL10 9AH
Submission of details pursuant to Condition 1 (Biodiversity Gain Plan), Condition 2 (Landscape and Ecological Management Plan (LEMP)), Condition 3 (Construction Traffic Management Plan (CTMP)) and Condition 4 (Tree Survey, Arboricultural Method Statement and Tree Protection Strategy) on planning permission 6/2026/0478/FULL
The full record
Decisions between 2019 and 2026
PlanIndex holds 3,804 decisions from Welwyn Hatfield between 2019 and 2026, part of 4,144 applications on record. Over that period 88% of clear-cut outcomes were approvals, 3,161 granted against 438 refused. The busiest single year was 2021, with 1,167 applications recorded.
The trailing-year figures above track current activity. This record reaches back further, so a decision here may predate the online portal; each application still has its own page with the source link.
From the archive
Earliest records shown in full
-
6/2019/2657/TC Withdrawn
69 Sweet Briar Welwyn Garden City AL7 3EB
Reduce 1 x Ash tree crown by 2m
-
6/2019/2565/TC Granted
26 Guessens Road Welwyn Garden City AL8 6RA
Reduce 1x Fastigiate Pyrus tree (P1) by 30%
-
6/2019/2836/COND Granted
Premier Inn Stanborough Road Welwyn Garden City AL8 6DQ
Submission of details pursuant to condition 5 (cycle parking) on planning permission 6/2018/1922/FULL
-
6/2019/2637/LAWP Refused
63 Holloways Lane, Welham Green, Hatfield, AL9 7NU
Certificate of lawfulness for erection of rear dormer and installation of roof lights to facilitate loft conversion
-
6/2019/2597/TPO Granted
17 Oaklands Rise Welwyn AL6 0RN
Reduce 1 x Oak (T1) crown by 20%
-
6/2019/2802/TC Granted
47 Elmwood Welwyn Garden City AL8 6LD
Fell 1x Prunus Fructosa Globosa tree (T1)
-
6/2019/2787/LAWE Refused
58 St Albans Road East Hatfield AL10 0EH
Certificate of lawfulness for the existing use of non-residential training centre (D1)
-
6/2019/2588/COND Granted
2 New Road Welwyn Garden City AL8 7TX
Submission of details pursuant to condition 4 (remediation) on planning permission 6/2015/1984/FULL
-
6/2019/2568/COND Granted
2 New Road Welwyn Garden City AL8 7TX
Submission of details pursuant to condition 4 (Site Characterisation, Submission and Implementation of Remediation Scheme, Unexpected Contamination and Monitoring and Maintenance) on planning permission 6/2015/1983/FULL
-
6/2019/2673/TC Granted
27 Rooks Hill Welwyn Garden City AL8 6EU
Fell Line of Leyland Cypress Reduce 1 x Beech tree by 2m height & 1m width
Decision speed
12 months to October 2026, where both dates are published
-
Within 8 weeks the statutory target for most applications 389 47%
-
8 to 13 weeks the target band for major development 292 35%
-
Over 13 weeks often extended by agreement 155 19%
Browse by ward
Applications by ward in Welwyn Hatfield
- Brookmans Park & Little Heath 311
- Haldens 100
- Handside 825
- Hatfield Cent. 143
- Hatfield East 159
- Hatfield South West 144
- Hatfield Villages 183
- Hollybush 106
- Howlands 227
- Northaw and Cuffley 373
- Panshanger 101
- Peartree 173
- Sherrards 462
- Welham Green & Hatfield South 175
- Welwyn East 285
- Welwyn West 323
Browse by postcode area
Applications by postcode district
Browse by year
Every application on record, month by month
Common questions
How many planning applications does Welwyn Hatfield decide?
In the 12 months to October 2026, Welwyn Hatfield decided 836 planning applications. 90% of clear-cut outcomes were approvals.
How long does a planning decision take in Welwyn Hatfield?
The median time from a planning application being received to a decision was 58 days over the 12 months to October 2026. Individual cases vary with complexity and consultation responses.
How many Welwyn Hatfield decisions arrive within the eight week target?
Of the 836 decisions in the 12 months to October 2026 where both dates are published, 47% came within eight weeks of the application being received, and 81% within thirteen weeks.
How many planning applications has Welwyn Hatfield decided in total?
PlanIndex holds 3804 decisions from Welwyn Hatfield between 2019 and 2026, out of 4,144 applications on record. Across that whole period 88% of clear-cut outcomes were approvals.
When is planning activity busiest in Welwyn Hatfield?
July 2026 was the busiest month across the 12 months to October 2026, with 172 applications recorded. The monthly pattern is listed on this page.
How do I find a planning application by its reference number?
Every application indexed here has its own page at a stable address. Look the reference up in a search engine together with the council name, or browse the latest applications below. Each page shows the description, address, dates and decision as the council published them.
Where can I see the full documents for an application?
Plans, drawings and officer reports stay on Welwyn Hatfield's own planning portal. Every application page here links straight to the source record.
Cite these figures
Click the text to select the whole citation.
Welwyn Hatfield: 4,144 planning applications on record as of October 2026. Trailing 12 months: 836 decided, 90% approved, median 58 days to a decision. 1,113 new applications received in the same period. Decisions on record run between 2019 and 2026: 3,804 in total, 88% approved. Source: PlanIndex, planindex.co.uk.
Show Welwyn Hatfield planning applications on your website
A live list of the latest five, free to use and always current. Paste this where you want it to appear. Click the code to select all of it.
<iframe src="https://planindex.co.uk/embed/applications/council/welwyn-hatfield" title="Latest planning applications in Welwyn Hatfield" width="100%" height="500" loading="lazy" frameborder="0"></iframe>
<p>Source: <a href="https://planindex.co.uk/planning-applications/welwyn-hatfield">Planning applications in Welwyn Hatfield</a>, from PlanIndex</p>