The Conifers Gipsy Lane Knebworth Hertfordshire SG3 6DJ
Eucalyptus - Remove.
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Eucalyptus - Remove.
Erection of single storey front extension
Continued use of first floor above garage as habitable accommodation
Erection of 1no. three bedroom chalet bungalow with associated hard and soft landscaping.
Insertion of front ground floor window and rear bi-fold doors following removal of existing garage door to facilitate garage conversion
Erection of single storey side and rear extension following demolition of existing single storey side and rear extension.
The Electronic Communications Code (Conditions and restrictions) Regulations 2003 (as amended) Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus: install cabling to exterior wall.
T1: Fir - Remove. T2: Fir - Vigorous pollarding on the branches.
2x Oak - Trim by approx 25%
Part demolition and alterations to existing barn and stables, including alterations to fenestration, replacement roofs, and insertion of front roof lights to facilitate conversion to form a single dwelling with associated residential garden and parking area.
Cut Fir trees at front of property down to nearer ground Ievel.
R1: Robinia - Remove.
Non-material amendment to 3/26/0321/HH, removal of roof parapets
Construction of garden studio outbuilding.
Proposed 1 (one) no.1 bedroom dwelling
Single storey rear extension and installation of air source heat pump.
Single storey rear and front extensions following demolition of existing rear element.
Details reserved by Condition 6 (Construction Method Statement) of outline planning permission reference 23/02946/OP granted on 18.06.2025.
Change of use land and siting of 8 storage containers. (Development already carried out).
Erection of detached double garage following demolition of existing detached garage
T1: Silver Birch - Reduce crown by around 30% (around 2-3m) to bring back into proportion and reduce wind and stress loading on the main stem connection.
Removal of Condition 17 (Ecological Appraisal) attached to planning permission reference number 24/00844/FP for erection of 1no. three bedroom chalet bungalow
Erection of a single storey rear extension and additional floor to existing bungalow following removal of existing conservatory
Erection of one two-storey five bedroom detached dwelling and eight two bedroom flats laid out within two two storey blocks of four and associated infrastructure and landscape works following the demolition of the existing dwelling and separate detached building
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
Erection of front porch and car port
Proposed loft conversion, enlargement of the existing roof with increase in ridge height to form a truncated hipped roof, installation of two front dormers, a rear dormer with a rear balcony, and associated rooflights
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.
Erection of a single storey side extension and a new garage on ground floor level, conversion of the existing garage and installation of an air source heat pump
Creation of an agricultural access
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
Retrospective application for the installation of palisade fencing and gates adjoining highway.
Erection of single storey side extension and front porch canopy
Submission of details pursuant to condition 19 (effectiveness of the remediation), condition 22 (site investigation and post investigation assessment), condition 23 (drainage scheme) & condition 24 (construction details and specifications) on planning permission 6/2023/2552/OUTLINE
Erection of part single, part two storey rear extension, new windows and doors to existing side and rear elevations and installation of rooflight within the rear roofslope
Erection of annexe
T1 - 1 x Beech tree - crown reduce by approx 2-3m - Remove any major deadwood throughout crown
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
Replacement like-for-like front door and one window
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.
Erection of two storey side extension, part single/two storey rear extension, insertion of two front dormer windows and front porch following the demolition of existing single storey rear extension and detached garage
Erection of four 4-bedroom detached dwellings with associated landscaping and parking, following the demolition of the existing stable building
T17 Pine and T74 Scots Pine are both dead and now dangerous (due to leaning). Covered by TPO 817 (2018)
Submission of details pursuant to Condition 1 (Construction Traffic Management Plan) on planning permission 6/2023/2483/FULL
Submission of details pursuant to Condition 1 (Biodiversity Gain Plan), Condition 2 (Habitat Management and Monitoring Plan) and Condition 3 (Construction Environmental Management Plan) on planning permission 6/2026/0205/MAJ
Submission of details pursuant to Condition 4 (Drainage), 7 (Lighting, line marking and flooring), 9 (Construction Method Statement) and 10 (Landscaping) on planning permission 6/2026/0205/MAJ
4 x Whitebeams to fell. No replanting
Creation of two off-street parking spaces within the front garden by converting part of the existing lawn to a permeable surface, To include part hedgerow removal.
Remove 2x quince trees - trees are engulfed in ivy and have a lot of deadwood present
Refurbishment and upgrade of existing rendered, gable wall, with the application of a ‘breathable’ top silicone coat for durability and longevity
Installation of an air to air heatpump - external unit and ducting on side elevation
Remove 1 x crab apple tree. Remove 1 x rotten tree. Remove 1 x tree. Remove 1 x holly bush.
1 x Irish Yew to remove in sections to ground level. Remove as tree is close to front room window and blocking the light. Tree owner is also elderly and wants to be able to see out of the window
1 x Irish Yew to remove in sections to ground level. Remove as tree is close to front room window and blocking the light
5x self set ash trees reduce in height by about 40%
Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 2.75m to the eaves
EV Charger installation
Raising of flat roof to accommodate insulation for part garage conversion, replacement fenestration and insertion of rooflight
Replacement fenestration, insertion of rooflight, raising flat roof to accommodate insulation for part garage conversion
Prior approval for a rear extension measuring 6m in depth, 2.5m to the eaves and the maximum height of 3m
T1- Bay tree - Fell to ground level as its outgrown its position and is interfering with the drains
T1. Hawthorn - Cut to ground level
Removal of cypress hedge and hawthorn tree
Erection of a single storey rear extension following the part demolition of existing single storey rear extension.
Erection of single storey rear extension to partially replace existing extension
Proposed addition of a 3104 x 5474 mm pent roofed wooden shed to rear garden
Erection of garden room and decking
Installation of an air conditioning/heat pump unit and alterations to side elevation window
Installation of an air conditioning/heat pump unit & alterations to side elevation window
Installation of one padel tennis court as an additional ancillary sporting and recreational facility to the Tesco office headquarters, together with associated floodlighting, and hard landscaping works.
Erection of freestanding aluminium garden pergola
1 x Crab Apple to reduce by approx 1.2m height and width
Remove 1 x Yew to ground level