Planning applications in AL6

12 Mardley Hill Welwyn AL6 0TN

TPO 24 T3 - 1 x Beech tree to reduce overhanging lateral branches by approximately 2m. Reduce lateral overhang to no 16 as tree is too close to boundary and excessive overhang is leaving bird poo on kids play equipment

9 Mardley Hill Welwyn AL6 0UE

Erection of single storey front, side and rear extension, raising the existing roof and formation of rear dormer. Alterations to the fenestration, including, installation of new windows and doors and external rendering and cladding, following the demolition of garage and porch

98 Harmer Green Lane Digswell Welwyn AL6 0ES

Formation of front boundary gate with brick piers and erection of rear extension, rear orangery, side porch canopy, replacement front porch, alterations to the fenestration including replacement windows, infilling the garage door, replacement roof tiles, replacement pool in new location, bore hole, Installation of rooflights, swimming pond, formation of glass balustrade at the rear, flint cladding/masonary treatment, garden outbuildings including a workshop, gym, shepherds hut, sauna and greenhouse, ev charger and heat source pump

21 Danesbury Park Road Welwyn Hertfordshire AL6 9SH

Two storey rear extension following removal of existing single storey rear elements

18 Great North Road Welwyn AL6 0PS

T1 - Sweet Chestnut tree - Fell one dead sweet Chestnut tree to ground level

3 Lower Green Tewin Hertfordshire AL6 0JS

Variation of Condition 2 (approved plans) pursuant to planning permission (ref: 3/24/0015/HH/Dated18/03/2024) for (Loft conversion with roof light to rear and erection of single storey rear extension). The amendments include the addition of one more rooflight

45 New Road Digswell Welwyn AL6 0AQ

Garage conversion to habitable area, front extension within existing garage roof overhang, installation of rooflights and alterations to fenestration

16 Mardley Hill Welwyn AL6 0TN

T1 - 1 x Oak to reduce by approximately 2m height and width, ensuring to cut back clearing the house sufficiently. Oak reducing due to canopy in close proximity to property and roof. (Covered by TPO 24 A3)

10 Windsor Close Welwyn AL6 9JZ

Erection of a single storey front extension with alterations to fenestration following the demolition of existing front porch

35 Burnham Green Road Burnham Green Hertfordshire AL6 0NL

Installation of swimming pool with raised patio extension

31 Parkside Welwyn AL6 9DQ

T1 Goat Willow Pollard back to previous trimming points which is approx 3-4m off T2 Cedar Crown reduction by 2-3m approx back to previous pruning points

89 Warren Way Digswell Welwyn AL6 0DL

Erection of single storey side/rear extension, new front porch/level access, new garage, new side window, widening of driveway and accessible ramp down to rear garden

The North Star 82 Great North Road Welwyn AL6 0TA

Use of an existing flat roof as a first-floor teaching terrace and installation of an external fire escape staircase in association with nursery use permitted under 6/2026/0025/VAR

The Coach House Ellesfield Welwyn AL6 9HB

Reduce 1 x Horse chestnut by 2m. Cut back 1 x Sycamore to 1m beyond boundary line.

16 The Green Welwyn AL6 9EA

Fell 1 x weeping willow.

Caverswall Queen Hoo Lane Tewin Hertfordshire AL6 0LT

Demolition of single storey rear extension with roof terrace, erection of single storey rear extension with roof terrace and glass balustrades, new ground and first floor front windows with glass balustrade added to existing flat roof

41 High Street Welwyn AL6 9EF

Birch tree in corner of boundary next to residential homes, reduction in size by 30% to the overall size of the tree

6 Hobbs Hill Welwyn AL6 9DS

Fell birch.

25 Bluebells Welwyn AL6 0XD

Certificate of Lawfulness for the erection of a first floor external balcony to the rear of the house

Sandyhurst 1 Welwyn By Pass Road Welwyn AL6 9HT

Erection of a 66 bedroom care home for the elderly (Use Class C2) with associated access, parking, landscaping and ancillary buildings following demolition of existing dwelling and associated outbuildings

44 Orchard Road Tewin Hertfordshire AL6 0HN

Demolition of existing house and erection of detached two-storey dwelling with solar panels, air-source heat pump, new driveway, cycle store and bin store

Gallaway Tewin Close Tewin Hertfordshire AL6 0HF

Certificate of lawfulness for erection of proposed outbuilding

1 Hollybush Close Welwyn AL6 0PZ

Erection of single detached 3 bedroom dwelling to the North East of the original dwelling

Connor Gardens Danesbury Park Road Welwyn Hertfordshire AL6 9SN

Change of use of land to residential static caravans/park homes to include footpath extension, parking, improved access points and associated landscaping (including changing the levels of part of the quarry area) and infrastructure.

2 Woodacre Drive Welwyn AL6 0UA

T1 Oak Prune western aspect by 2 metres. (Covered by TPO24 A3 and TPO 642 (2017) G1)

14 Birch Grove Welwyn AL6 0QP

T1-T10 Hornbeam to repollard back to previous pollard points roughly 3m cut back to main trunk. T11-T15 Hornbeam to cut back by 1.5m boundary of all branches overhanging rear boundary.

69 Robbery Bottom Lane Welwyn AL6 0UL

Raising the existing roof line incorporating new rooflights, new dormer, external alterations to existing windows and doors and the creation of a new parking space, erection of canopy following demolition of existing porch

Tall Timbers Tewin Close Tewin Hertfordshire AL6 0HF

Certificate of lawfulness for proposed garage to replace existing car port

59 New Road Digswell Welwyn AL6 0AL

Submission of details pursuant to Condition 14 (sustainable drainage scheme), 15 (verification report) and 16 (details of all units) on planning permission 6/2023/0907/FULL

Windy Ridge 40 Great North Road Welwyn AL6 0PX

Erection of two storey front extension with dormers, alteration to openings

4 Mornington Digswell Welwyn AL6 0AJ

TG1 Tree Group overhanging road and footpath - Lift crowns overhanging road and foot path to 5 metres in height to allow clearance from road users and pedestrians T2 Cherry - Dead - Fell to ground level T3 Birch - Heavy lean and unstable - Fell to ground level

Brambles Briary Wood End Welwyn AL6 0TD

TPO 800 T1 - Chestnut tree - crown reduce by approx 4-5m - tree is multi stem and we have recently removed the whole crown on one stem due to being completely dead. Client is worried about the balancing weight now on the other stem. Please see attached photos.

Chapel Barn Rabley Heath Road Codicote Welwyn Hertfordshire AL6 9UA

Erection of detached ancillary garden annex with decking and associated access steps

67 Burnham Green Road Burnham Green Hertfordshire AL6 0NH

Part conversion of garage to ancillary residential annexe with exterior alterations, including new brick platform and concrete ramp.

111 Warren Way Digswell Welwyn AL6 0DL

Erection of part single storey, part two storey rear extension with rooflight to ground floor roof, enlarged patio area and ground floor and first floor openings to existing side elevation

Southernwood Pottersheath Road Pottersheath Welwyn Hertfordshire AL6 9ST

Single storey rear extension, alterations to fenestrations including insertion of rear first floor Juliet balcony and external cladding

Tewin Bury Farm Hotel Hertford Road Tewin Hertfordshire AL6 0JB

Erection of two padel courts with associated low-level floodlights and external works

36A Reynards Road Welwyn AL6 9TP

Submission of details pursuant to condition 1 (Construction Management Plan), condition 2 (Surface Water Drainage) and condition 3 (Material Samples), condition 4 (Crown Roof), condition 5 (Landscaping Scheme) and condition 6 (EV Charging Point), condition 7 (Energy Efficiency), and condition 11 (Approved Plans) on planning permission 6/2025/0220/FULL

5 Pine Crest Welwyn AL6 0EQ

T1 Oak: 30% reduction to suitable lateral growth points. T2 & T3 Sweet chestnuts: 30% reduction to suitable lateral growth points. (Covered by TPO655)

40 Reynards Road Welwyn AL6 9TP

Demolition of an existing derelict outbuilding and its replacement with single-storey accommodation ancillary to the main dwelling

Robin Hood And Little John Rabley Heath Road Codicote Welwyn Hertfordshire AL6 9UB

Variation of Condition 2 (the new position of the building requires the approved drawing numbers to change) of planning permission 25/02741/FP granted on 19.01.2026 for Erection of outbuilding to provide staff accommodation and kitchen storage following demolition of existing chicken shed.

8 Oak Piece Welwyn AL6 0XE

Sweet Chestnut tree: under TPO 534, marked as T2 Remove Tree as it's technically dead (assessed by Ashley Grey of Ashley Trees)

11 Carleton Rise Welwyn AL6 9RP

Installation of a front portico

21 Danesbury Park Road Welwyn Hertfordshire AL6 9SH

Two storey rear extension following demolition of existing rear elements.

44 Mill Lane Welwyn AL6 9ET

TG1 Sycamore, Prunus and Hazel - Coppice/pollard the Sycamore and Hazel to the height of the Laurel hedge and bring the height of the dead/Ivy-clad parts of the Prunus down to match on the waterside. Prune the remaining parts of the Prunus leaning back into the garden of 44 to shape and balance the crown. T1 Ash - Remove the lowest limb going over the water at the back into the phone wires. To do so, we will also need to remove the 2 lowest limbs at the front to set up a lowering line.

45 High Street Welwyn AL6 9EH

Submission of details pursuant to condition 1 (method) and 2 (structural survey and a detailed schedule of repair works) on listed building consent 6/2025/2626/LB

Land At The Rear Of 25 Danesbury Park Road Welwyn Hertfordshire AL6 9SH

Erection of up to 2 dwellings and associated infrastructure

35 Burnham Green Road Burnham Green Hertfordshire AL6 0NL

Single storey rear extension, conversion of detached garage into habitable space, new patio and alterations to fenestration

1 Old Forge Close Welwyn AL6 0SR

Proposed removal of redundant boiler chimney at rear of property

45 Orchard Road Tewin Hertfordshire AL6 0HL

Construction of a single storey detached garage