Ward · St Albans
Planning applications in Harpenden West
PlanIndex holds 463 planning applications from Harpenden West ward, the earliest from 2016, the newest from October 2026. 93% of clear-cut decisions were approvals.
Applications in Harpenden West
Newest first · page 1 of 10
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TP/2026/0509 Awaiting decision
36 Park Avenue North Harpenden Hertfordshire Al5 2Ed
G1 - 5 lime trees at the front of the house to raise the canopy to approx 5 mentres and remove epicormic growth. This work is all general maintenasnce and to keep mtrees healthy and under control
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TP/2026/0505 Awaiting decision
26 Leyton Road Harpenden Hertfordshire Al5 2Jb
T1 - Ash - Cut back lateral growth overhanging shed T2 - Beech - Cut back lateral growth towards house. These tree works are required to maintain the size and health of the trees and to provide more light into the garden, also to stop potential future d
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TP/2026/0494 Awaiting decision
17 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dn
T2 Beech - Crown reduction by 2-3m approx (primary cuts) and thin canopy by 15-20% G1 Cypress - Fell T3 Silver Birch - Crown reduction by 2-3m approx (primary cuts)
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TP/2026/0474 Awaiting decision
12 Bowers Way Harpenden Hertfordshire Al5 4Ew
Dead Ash tree at the rear on the left side of the back garden.Fell to ground level Diseased Acacia tree, Fell to ground level and grind out stump.
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TP/2026/0477 Awaiting decision
11A Salisbury Avenue Harpenden Hertfordshire Al5 2Qf
11A Salisbury Avenue Harpenden Hertfordshire Al5 2Qf T1 - 1 x Overgrown Cotoneaster / Himalayan tree.Pollard to height of first branch break.
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TP/2026/0475 Awaiting decision
47 Aplins Close Harpenden Hertfordshire Al5 2Pz
G1 2 Silver Birch - Crown reduction by 2-2.5m approx and crown lift to the legal limit over highway Hawthorn - Crown reduction by 1-2m (primary pruning points)
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TP/2026/0491 Awaiting decision
The Coppice 25 Douglas Road Harpenden
Mixed species group on boundary, reduce to previous height.
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TP/2026/0490 Awaiting decision
5 Townsend Lane Harpenden Hertfordshire Al5 2Py
T1 Beech - Crown reduction by up to 2m approx, give 4m clearance from building and crown lift over the highway to the legal limit 5.2m
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5/2026/1702 Awaiting decision
2 Victoria Road Harpenden Hertfordshire Al5 4Ea
Alterations to the fenestration.
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TP/2026/0455 Awaiting decision
7 Salisbury Avenue Harpenden Hertfordshire Al5 2Qq
Silve birch - felling trees 1, 2, 3, and 5 on safety grounds in significant decline
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TP/2026/0452 Decided
7 Crabtree Lane Harpenden Hertfordshire Al5 5Ta
T2 Scots Pine Fell dead tree with tracked MEWP. 5 DAY REQUEST
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TP/2026/0451 Awaiting decision
Topstreet Farmhouse 28 Crabtree Lane Harpenden Hertfordshire Al5 5Nu
T1 Beech - Crown reduction by 3-4m approx and crown thin by 15-20% The tree has perviously been managed with a similar crown reduction in the past to contain shape and improve light
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TP/2026/0442 Awaiting decision
29 Southdown Road Harpenden Hertfordshire Al5 1Pf
T1 Silver Birch (poor condition with extensive dieback in upper crown with birch polypore) - Fell
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TP/2026/0441 Awaiting decision
38 Park Avenue North Harpenden Hertfordshire Al5 2Ed
T1 & T2 Lime trees x 2 to reduce and reshape to 25-30% approx to previous pruning points 2 metres off teh canopy. T3 Lime tree with brace to reduce in height bu approx 2-3 metres below the previous pruning points. This is general maintenance work to keep
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TP/2026/0440 Awaiting decision
The Barn House 15A Southdown Road Harpenden Hertfordshire Al5 1Pd
T1 Acacia - Crown reduction by 2-3m approx to prevent stem failure due to cavities at base.
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TP/2026/0437 Awaiting decision
28 Park Avenue North Harpenden Hertfordshire Al5 2Ed
2 Limes - Pollard (back to previous pollard pionts)
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5/2026/1625 Awaiting decision
72 Crabtree Lane Harpenden Hertfordshire Al5 5Ns
Rear orangery
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TP/2026/0435 Awaiting decision
29 Station Road Harpenden Hertfordshire Al5 4Xb
T1 Sequoia - Crown reduction by 3m approx and crown thin by 10%, reduce disproportionate branches further to balance crown and crown clean. Clear growth over highway to 5.2m
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TP/2026/0429 Awaiting decision
39 Leyton Road Harpenden Hertfordshire Al5 2Jb
T1 Eucalyptus tree at rear to reduce crown by approx 50% (approx 4m) T5 Gleditsia growing close to rear of house to reduce crown approx as previously (1-2m all over) T6 Yew growing close to Gleditsia at rear to reduce height by approx 3m to approx gutter
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5/2026/1599 Awaiting decision
12 Leyton Green Harpenden Hertfordshire Al5 2Tg
Installation of AC condenser unit in acoustic enclosure
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5/2026/1597 Awaiting decision
7 Hales Meadow Harpenden Hertfordshire Al5 4Jb
Installation of air conditioning unit on side wall
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TP/2026/0423 Awaiting decision
Cottage 3 The Bourne Salisbury Avenue Harpenden Hertfordshire Al5 2Ps
Group of Hornbeam (x3) to reduce by approximately 1.5m height and width, making sure to cut back beyond neighbouring driveway and to clear the roadway. Cut back to clear bin store by 1m
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TP/2026/0421 Awaiting decision
25 Moreton Avenue Harpenden Hertfordshire Al5 2Eu
Cherry tree - left hand corner of our front garden. Reduce the crown by 30% and also thin out parts of the tree.
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5/2026/1583 Awaiting decision
42 Luton Road Harpenden Hertfordshire Al5 2Uj
3m deep, single storey rear extension plus introduction of side door to the existing garage
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TP/2026/0412 Awaiting decision
26 Tennyson Road Harpenden Hertfordshire Al5 4Bb
Fell two no. (Tree No.1 and Tree No. 2 on supplied plan) hawthorn trees which are adjacent to the southern boundary fence.
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TP/2026/0410 Awaiting decision
43 Cowper Road Harpenden Hertfordshire Al5 5Nj
Rear left corner of the garden. Holly tree. Remove tree completely.
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TP/2026/0404 Awaiting decision
9 Kirkwick Avenue Harpenden Hertfordshire Al5 2Qu
Reduce 3 x Lawson Cypress, 1 x leylandii and 3 x Silver Birche by up to 4 metres each. Reduce overhanging branches from the Sycamore Tree which overhanging garden.
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5/2026/1560 Awaiting decision
130A Southdown Road Harpenden Hertfordshire Al5 1Pu
Conversion of an external covered colonnade to office space for a community building including new windows and doors to existing colonnade openings and one new window
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5/2026/1558 Granted
31 Highfield Avenue Harpenden Hertfordshire Al5 5Ub
Certificate of Lawfulness ( Proposed) - Proposed rear single-storey extension, side single-storey extension and removal of rear chimney stack
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5/2026/1538 Awaiting decision
96 Cowper Road Harpenden Hertfordshire Al5 5Nh
Variation of Condition 3 (external materials) to change to render finish of planning permission 5/2025/2083 dated 06/01/2026 for First floor front and side extensions, single storey rear extension and roof alterations to the front elevation
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5/2026/1527 Granted
11B Douglas Road Harpenden Hertfordshire Al5 2En
Discharge of Condition 5 (tree protection plan and arboricultural method statement) of planning permission 5/2025/0568 dated 06/02/2026 for Two storey front extension, single storey front and rear extensions with roof lights, solar panels to rear roof slo
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TP/2026/0386 Granted
25 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dn
Conifer (front garden) - Fell, this tree is now 55 foot high and is 20 feet in distance from the house (consent given historically to reduce by 30%)
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5/2026/1490 Awaiting decision
14 Park Avenue South Harpenden Hertfordshire Al5 2Ea
Construction of replacement dwelling with habitable roof accommodation, outbuildings and swimming pool, alterations to vehicular access and driveway, and associated changes to the garden and landscaping (alternative scheme to extant permission 5/2022/2666
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5/2026/1464 Awaiting decision
26 Cowper Road Harpenden Hertfordshire Al5 5Ng
Proposed extensions and alterations to 26 Cowper Road, comprising a first floor extension above the existing garage and utility room, including the conversion of the existing garage to provide an enlarged entrance hall, WC and storage, involving the remov
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5/2026/1454 Awaiting decision
10A Park Avenue South Harpenden Hertfordshire Al5 2Ea
Erection of front boundary wall with piers, metal railings, new driveway and pedestrian gates
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5/2026/1456 Awaiting decision
17 Bowers Way Harpenden Hertfordshire Al5 4Ep
Loft Conversion Including Rear Hip To Gable Extension Plus Addition Of New Dormers & Rooflights
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TP/2026/0380 Granted
23A Douglas Road Harpenden Hertfordshire Al5 2Ep
(Front garden) Tree 1 Fell to ground level dead Lime tree. (Rear garden) Tree 2 Reduce crown by 50% on Sycamore tree as it's causing excessive shading.
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TP/2026/0377 Granted
The Vinery 6 Salisbury Avenue Harpenden Hertfordshire Al5 2Qg
Ash (T1) - Crown reduction by 20% (T1) Silver Birch (T2) - fell due to poor quality, Ash (T3) Fell (renewal of previously approved application TP/2021/0300). Seasonal trimming of all boundary hedges.
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TP/2026/0374 Granted
27 Leyton Road Harpenden Hertfordshire Al5 2Jb
T5 - Sycamore to reduce the crown by 50% to old points to ensure the health of the tree and give light to the undergrowth and allow bio-diversity under the canopy.
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TP/2026/0373 Granted
10 Moreton Avenue Harpenden Hertfordshire Al5 2Et
T1 Prunus Cerasifera Reduce height and width by 30%.
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TP/2026/0369 Granted
Haddon Court Milton Road Harpenden Hertfordshire Al5 5Na
Refer to report for full details of works to the following species Limes, Beech, Horse chestnut, Mongolian lime, Common lime, Hornbeam, Crab apple
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TP/2026/0368 Granted
78 Luton Road Harpenden Hertfordshire Al5 2Ur
(T1) Norway Maple , Re-Pollard to previous pollard points Tree is adjacent property and starting to encroach the building
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5/2026/1418 Awaiting decision
35 Overstone Road Harpenden Hertfordshire Al5 5Pn
Proposed Single Storey Rear Extension
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TP/2026/0364 Granted
47 Park Avenue North Harpenden Hertfordshire Al5 2Ee
G1 - Pines x 3 - Remove to ground level see application for details. T3 - Lime x 1 Reduce the canopy by 1-2 metres to previous points.
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5/2026/1414 Refused
6 High Street Harpenden Hertfordshire Al5 2Tb
Prior Approval - Retention of Commercial premises at ground floor level. Change of Use from Class E (Commercial, Business and Service) into Class C3 (Dwellinghouses)
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TP/2026/0356 Granted
17 Douglas Road Harpenden Hertfordshire Al5 2En
G1 Hazel & Purple Leaf Plum - Crown reduction by 1-2m approx (primary cuts) G2 Lime & Portuguese Laurel - Pollard T3 Horse Chestnut - Crown reduction by 2-3m approx (back to previous pruning pionts)
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5/2026/1392 Awaiting decision
1 Greyfriars Lane Harpenden Hertfordshire Al5 2Qj
Variation of Condition 4 (obscure glazing & non-opening) to allow standard glazing in the rooflight on the eastern elevation of planning permission 5/2021/1155 dated 24/06/2021 for Two storey dwelling with habitable roof space and double garage following
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5/2026/1402 Awaiting decision
23 Kirkdale Road Harpenden Hertfordshire Al5 2Pt
Two storey rear and side extension with basement, single storey side, front and rear extension, new porch roof, rebuilding outbuilding gym
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5/2026/1376 Withdrawn
1 Townsend Lane Harpenden Hertfordshire Al5 2Py
Two storey side/rear extensions, roof and internal alterations
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5/2026/1375 Awaiting decision
20 Hartwell Gardens Harpenden Hertfordshire Al5 2Rw
Proposed first floor side extension with new solar panels, new front two-storey extension, part external cladding, replacement rear bay window, along with internal and external alterations and replacement windows
Show Harpenden West planning applications on your website
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<p>Source: <a href="https://planindex.co.uk/planning-applications/st-albans/ward/harpenden-west">Planning applications in Harpenden West, St Albans</a>, from PlanIndex</p>