Planning applications in Harpenden
Last application update 5 Aug 2026
See what's happening with planning in Harpenden: 1440 planning applications tracked so far.
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Status breakdown
Other (571)
- Granted with conditions539
- Withdrawn30
- Unresolved2
Latest notices
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23A Douglas Road Harpenden Hertfordshire Al5 2Ep
Undecided(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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19 West Common Grove Harpenden Hertfordshire Al5 2At
UndecidedA large maple tree requires a reduction of c 30%
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The Vinery 6 Salisbury Avenue Harpenden Hertfordshire Al5 2Qg
UndecidedAsh (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).…
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2C Cornwall Road Harpenden Hertfordshire Al5 4Th
UndecidedPurple Plum x2 - Fell, trees in the front garden in significant decline
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1 Beesonend Cottages Beesonend Lane Harpenden Hertfordshire Al5 2Aa
UndecidedProposed erection of single-storey garage and new EV charger to side of property
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31A West Common Way Harpenden Hertfordshire Al5 2Lh
UndecidedT1 Scotts Pine (poor condition and vigour) - Fell
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8 Miley Close Harpenden Hertfordshire Al5 3Ds
UndecidedProposed garage conversion and internal alterations in order to create a new habitable Living Room with new side Store
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Sir John Lawes School Manland Way Harpenden Hertfordshire Al5 4Qp
Granted with conditionsDischarge of Condition 3 (materials) of planning permission 5/2025/1978 dated 25/02/2026 for Proposed development of a single storey teaching block with music…
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Crossfields House Lamer Lane Wheathampstead Hertfordshire Al4 8Rq
Granted1 - Silver Birch. Removal of tree 2 - Pine tree. Removal of tree, see applictaion for further details.
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6 Lodge Gardens Harpenden Hertfordshire Al5 4Je
GrantedOak - Reduce back vertical growth by 2-3m and crown clean Mixed Specie - Reduce back lateral growth to the fence Small Sycamore (under 75mm at breast height) -…
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Timber Cottage Lower Gustard Wood Wheathampstead Hertfordshire Al4 8Ru
GrantedCA works T4. Silver Birch - Fell and remove. T5. Sycamore - Fell and remove . Remove to stump level. T6 Mature Ash - Pollard crown by 30-40% to restore crown…
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23 Station Road Harpenden Hertfordshire Al5 4Xa
Granted with conditionsReplacement of selected windows, new rear dormer window, demolition of garage , creation of new parking space, erection of timber fence and new boundary railing
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15 Southdown Road Harpenden Hertfordshire Al5 1Pd
RefusedListed building Consent - Replacement of existing sash windows on all levels to front elevation with new
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14 Broadstone Road Harpenden Hertfordshire Al5 1Rg
GrantedCertificate of Lawfulness (proposed) - Loft conversion with rear dormer and three rooflights to front
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16 Kipling Way Harpenden Hertfordshire Al5 4Xg
GrantedPrior Notification - Single storey rear extension 3.72m in height x 4m in depth with 2.75m height to eaves
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75A Ox Lane Harpenden Hertfordshire Al5 4Ph
GrantedCertificate of Lawfulness (proposed) - The proposal involves the partial conversion of an existing integral garage to increase the size of the existing…
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26 Burywick Harpenden Hertfordshire Al5 2Ah
Granted with conditionsFirst floor side and front extension, alterations to fenestrations and external materials
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Harpenden Public Halls Southdown Road Harpenden Hertfordshire Al5 1Pa
Granted with conditionsDischarge of Condition 6 (archaeological recording) of planning permission 5/2025/1565 dated 21/01/2026 for External alterations to Harpenden Public Halls…
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68 Townsend Lane Harpenden Hertfordshire Al5 2Rg
Granted with conditionsSingle storey side and rear extensions with rooflights, loft conversion with front and rear dormer windows and rooflights, alterations to openings
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39 The Broadway Gustard Wood Wheathampstead Hertfordshire Al4 8Lw
GrantedDeemed application, on appeal against an Enforcement Notice - Two storey side, partial two storey rear, loft conversion and single storey rear extension
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Old Gates West Common Harpenden Hertfordshire Al5 2Jw
GrantedThe first is a conifer which stands by the field hedge line at the southern end of our garden. We planted this conifer since we moved here, and it has proved…
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St Dominic Roman Catholic Primary School Southdown Road Harpenden Hertfordshire Al5 1Pf
GrantedT2207 Yew; Remove marked adjacent Holly leaning over path. T2208 Silver Birch; Section fell as close to ground level as possible. T2208a Goat Willow; Fell as…
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21 Roundwood Park Harpenden Hertfordshire Al5 3Aq
GrantedT1 Oak (extensive crown die back and rapidly in decline) - Fell
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9 Heron Close Wheathampstead Hertfordshire Al4 8Jz
Granted with conditionsInstallation of conservatory at rear
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3 How Field Harpenden Hertfordshire Al5 3Au
UndecidedTwo storey front extension, garage conversion and alterations to openings
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10 Newton Close Harpenden Hertfordshire Al5 1Sp
UndecidedProposed loft extension with rear box dormer and front velux windows. Raised ridge height to dwelling to facilitate required internal floor to ceiling height
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28 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
UndecidedFirst Floor Rear Extension ontop of single storey extension approved under Planning Permission 5/2026/0228.
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441 Luton Road Harpenden Hertfordshire Al5 3Qe
UndecidedProposed unification of approved new front dormer and Velux to front elevation and 2 no new rear dormer.
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42B West Common Harpenden Hertfordshire Al5 2Jw
Granted with conditionsProposed roof alteration, loft conversion, dormer projections, garage conversion and alterations
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49 Topstreet Way Harpenden Hertfordshire Al5 5Tx
WithdrawnDemolition of existing and construction of two semi-detached dwellings
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How to comment on a planning application in Harpenden
Anyone can have their say on a planning application in Harpenden. Find the application on the St Albans planning authority's public-access portal using the reference number above, then submit a comment before the consultation deadline. Comments are usually limited to planning matters such as overlooking, loss of light, traffic, noise and the character of the area.
St Albans is the local planning authority responsible for deciding applications in Harpenden. Town Crier mirrors the public record so you can keep track of what is happening near you, but the council remains the authoritative source and the place to submit formal comments.
Nearby areas
Planning applications in the towns nearest here, including neighbouring council areas.
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