Planning Applications in Lea Valley, Hertfordshire

Planning authority: St Albans City and District Council

Search current and historic planning applications in Lea Valley, Hertfordshire, published by St Albans City and District Council - 1 application in the last 14 days and 90 in the last 12 months. Explore them on the map, apply detailed filters, or receive free alerts for new proposals.

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Showing 90 applications
8 Sept 2026 Under Consultation 5/2026/1638

1 Castle Rise Wheathampstead Hertfordshire AL4 8HX

Certificate of Lawfulness (proposed) - Proposed loft hip to gable with rear dormer, internal alterations and all associated works at 1 Castle Rise, AL...

CLP St Albans
11 Jun 2026 Under Consideration 5/2026/1136

38 Marshalls Way Wheathampstead Hertfordshire AL4 8HY

Single storey side extension, relocate front entrance door with porch canopy and alterations, following demolition of existing side conservatory and p...

HSE St Albans
9 Jun 2026 Refused 5/2026/1107

58 Manor Road Wheathampstead Hertfordshire AL4 8JD

Prior Notification - Single storey rear extension 3.6m in height x 8m in depth with 2.48m height to eaves

NCS St Albans
1 Apr 2026 Under Consideration 5/2026/0670

43 Marshalls Way Wheathampstead Hertfordshire AL4 8HZ

Alterations at roof level to provide additional accommodation, infill rear extension

HSE St Albans
27 Mar 2026 Under Consideration 5/2026/0615

The Cherry Trees 261 Lower Luton Road Wheathampstead Hertfordshire AL4 8HW

Approval of Technical Details Consent for the construction of nine residential dwellings pursuit in principle of 5/2025/1645

MIND St Albans
24 Feb 2026 Approved 5/2026/0333

Lea House 204 Lower Luton Road Wheathampstead Hertfordshire AL4 8HN

Regularisation of the demolition of two dilapidated curtilage-listed garden outbuildings (removed on health and safety grounds following consultation ...

HSE St Albans
24 Feb 2026 Approved 5/2026/0493

Lea House 204 Lower Luton Road Wheathampstead Hertfordshire AL4 8HN

Listed Building consent - Regularisation of the demolition of two dilapidated curtilage-listed garden outbuildings (removed on health and safety groun...

LBB St Albans
23 Feb 2026 Approved 5/2026/0336

Lea House 204 Lower Luton Road Wheathampstead Hertfordshire AL4 8HN

Certificate of Lawfulness (proposed works to a Listed Building) - Internal alterations to the modern extension and refurbished areas of the curtilage...

CLP St Albans
24 Dec 2025 Approved Archive 5/2025/2352

30 Aldwick Road Harpenden Hertfordshire Al5 1Ng

Single storey and first floor rear extension, internal alterations and outbuilding in garden

St Albans
24 Dec 2025 Pending Archive 5/2025/2357

30 Aldwick Road Harpenden Hertfordshire Al5 1Ng

Prior Notification - Single storey rear extension 2.90m in height x 4.50m in depth with 2.60m height to eaves

St Albans
23 Dec 2025 Approved Archive 5/2025/2344

16 Manland Avenue Harpenden Hertfordshire Al5 4Rf

Discharge of Conditions 3 (slab levels), 4 (development progress report) and 6 (materials) of planning permission 5/2024/0853 dated 24/09/2024 for Var...

St Albans
23 Dec 2025 Approved Archive 5/2025/2336

86A Wheathampstead Road Harpenden Hertfordshire Al5 1Jb

Proposed outbuilding for a golf simulator

St Albans
16 Dec 2025 Pending Archive 5/2025/2291

39 Long Buftlers Harpenden Hertfordshire Al5 1Jf

Part single part two storey front extension; first floor rear extension ; first floor side extension over garage and raising of roof to incorporate a ...

St Albans
16 Dec 2025 Approved Archive TP/2025/0653

Crossfields House Lamer Lane Wheathampstead Hertfordshire Al4 8Rq

1 - bay tree. Removal recommended by surveyor due to height, proximity to house foundations and roof, and it's potential to cause damage to the house....

St Albans
15 Dec 2025 Pending Archive 5/2025/2278

14 Waddling Lane Wheathampstead Hertfordshire Al4 8Fd

Garden room outbuilding (retrospective)

St Albans
15 Dec 2025 Pending Archive 5/2025/2282

7 Tylers Harpenden Hertfordshire Al5 5Rt

Single-storey rear extension, ground-floor front infill extension and first-floor front extension

St Albans
11 Dec 2025 Approved Archive 5/2025/2263

10 The Hill Wheathampstead Hertfordshire Al4 8Pp

Proposed new porch and single storey side extension

St Albans
11 Dec 2025 Pending Archive 5/2025/2261

Bury Farm Cottage 53 Ash Grove Wheathampstead Hertfordshire Al4 8Df

Widening of existing driveway, removal of garage, proposed rear extension and service store, proposed rear and side fenestration alterations, internal...

St Albans
10 Dec 2025 Approved Archive 5/2025/2255

18 High Firs Crescent Harpenden Hertfordshire Al5 1Na

Prior Notification - Single storey rear extension with rooflights 6m depth x 3.50m in height x 3m in height to the eaves

St Albans
10 Dec 2025 Approved Archive 5/2025/2257

7 Grasmere Avenue Harpenden Hertfordshire Al5 5Pt

Two storey side and rear extension, single storey side and rear extension, front porch, alterations to openings

St Albans
10 Dec 2025 Pending Archive 5/2025/2253

St Helens Church High Street Wheathampstead Hertfordshire Al4 8Aa

A new north extension accommodating two WCs, one of which will be fully accessible. New stepped and ramped access to the west doors, together with new...

St Albans
8 Dec 2025 Approved Archive 5/2025/2236

1 Waterside Station Road Harpenden Hertfordshire Al5 4Us

Discharge of Condition 5 (construction management method statement) of planning permission 5/2023/1918 dated 25/06/2025 for Infill of the ground floor...

St Albans
5 Dec 2025 Refused Archive 5/2025/2223

4 Town Farm Wheathampstead Hertfordshire Al4 8Ql

Loft conversion with rear window dormer and front rooflights

St Albans
1 Dec 2025 Refused Archive 5/2025/2186

18 Manland Avenue Harpenden Hertfordshire Al5 4Rf

Certificate of Lawfulness (proposed) - Side extension already approved. Request to change roof of both original house and extension to natural slates ...

St Albans
1 Dec 2025 Approved Archive TP/2025/0636

Mid Hertfordshire Golf Club Ltd Lower Gustard Wood Wheathampstead Hertfordshire Al4 8Rs

G1 - Remove 3 x small beech trees by the first tee. T1 - Reduce twin stem Oak back to previous cuts. G2 - Remove 5 x medium Oak trees marked. Right ha...

St Albans
1 Dec 2025 Pending Archive TP/2025/0634

Amwell Corner Amwell Lane Wheathampstead Hertfordshire Al4 8Ea

T1 Sycamore (Cryptostroma corticale) - Fell 5 DAY NOTICE REQUIRED

St Albans
26 Nov 2025 Pending Archive 5/2025/2166

21 Grasmere Avenue Harpenden Hertfordshire Al5 5Pt

First floor rear extension with roof lights and juliet balcony, alterations to existing rear single storey projection, alterations to roof with new ro...

St Albans
25 Nov 2025 Refused Archive 5/2025/2152

31 Alzey Gardens Harpenden Hertfordshire Al5 5Sx

Certificate of Lawfulness (proposed) - Side single storey extension

St Albans
25 Nov 2025 Pending Archive 5/2025/2150

39 Carisbrooke Road Harpenden Hertfordshire Al5 5Qs

Single storey rear extension, loft extension with rear box dormer roof, alterations to external finishes of building and alterations to window/door op...

St Albans
25 Nov 2025 Approved Archive TP/2025/0623

Delaport Coach House Lamer Lane Wheathampstead Hertfordshire Al4 8Rq

T3 Ash - Reduce back 2 lowest laterals towards the house by 2-3m approx to prevent failure T2 Ash - Remove suspended stem and crown clean G1 Laurel Gr...

St Albans
25 Nov 2025 Approved Archive TP/2025/0620

Cherry Trees Mackerye End Harpenden Hertfordshire Al5 5Ds

T1 Silver Birch (extensive decay in stem) - Fell

St Albans
24 Nov 2025 Refused Archive 5/2025/2148

1 Maltings Drive Wheathampstead Hertfordshire Al4 8Qj

Single storey rear, two storey side and front extensions following demolition of detached garage, installation of solar panels, alterations to opening...

St Albans
20 Nov 2025 Pending Archive 5/2025/2126

34 Gustard Wood Wheathampstead Hertfordshire Al4 8Rr

Erection of a porch to the side, alterations to openings to the side elevation, and installation of an air source heat pump system

St Albans
18 Nov 2025 Approved Archive 5/2025/2108

75 Overstone Road Harpenden Hertfordshire Al5 5Pl

Two-storey front extension, first floor side extension and alterations to openings

St Albans
17 Nov 2025 Withdrawn Archive 5/2025/2106

25 Aldwickbury Crescent Harpenden Hertfordshire Al5 5Sa

Single storey rear extension and two storey side extension with front porch

St Albans
17 Nov 2025 Approved Archive 5/2025/2098

38 Batford Road Harpenden Hertfordshire Al5 5At

Certificate of Lawfulness (proposed) - Rear dormer extension

St Albans
14 Nov 2025 Pending Archive 5/2025/2096

Rainbow House Nursery Meads Lane Wheathampstead Hertfordshire Al4 8Bw

Erection of single storey building for nursery use; provision of bicycle store and buggy store

St Albans
13 Nov 2025 Approved Archive 5/2025/2086

23 Bury Green Wheathampstead Hertfordshire Al4 8Dl

Alterations to conservatory, garage conversion including single storey side extension, new front porch, elevational alterations and associated works.

St Albans
11 Nov 2025 Approved Archive 5/2025/2065

46 Wheathampstead Road Harpenden Hertfordshire Al5 1Nd

Single storey side and rear extensions

St Albans
11 Nov 2025 Approved Archive 5/2025/2062

148 Lower Luton Road Harpenden Hertfordshire Al5 5Ha

Two storey side and single storey front and rear extension, and new detached garage

St Albans
10 Nov 2025 Approved Archive 5/2025/2049

146 Station Road Harpenden Hertfordshire Al5 4Rh

Proposed two storey side extension, two storey rear extension, single storey rear extension, demolition of existing conservatory and outbuildings, cha...

St Albans
10 Nov 2025 Approved Archive 5/2025/2060

5 Lower Luton Road Harpenden Hertfordshire Al5 5Af

Front porch and single storey rear extension

St Albans
6 Nov 2025 Pending Archive 5/2025/2039

334 Lower Luton Road Wheathampstead Hertfordshire Al4 8Jq

Proposed demolition of existing detached garage and construction of single storey side extension, new rear dormer loft conversion, with internal remod...

St Albans
5 Nov 2025 Approved Archive TP/2025/0584

25 The Hill Wheathampstead Hertfordshire Al4 8Pw

Cherry - Reduce crown by 25% or just above previous pruning points. -Thin crown by 25%. -Remove any deadwood and defective branches.

St Albans
31 Oct 2025 Pending Archive 5/2025/2009

Lanesbury Marshalls Heath Lane Wheathampstead Hertfordshire Al4 8Hs

Conversion of existing garage to habitable accommodation with a hipped roof to match existing, fenestration and elevation alterations and associated w...

St Albans
31 Oct 2025 Approved Archive 5/2025/2010

36 Gustard Wood Wheathampstead Hertfordshire Al4 8Rr

Variation of Condition 2 (approved plans) to alow widening of the first floor rear extension of planning permission 5/2024/2246 dated 01/04/2025 for F...

St Albans
28 Oct 2025 Approved Archive 5/2025/1988

21 The Broadway Gustard Wood Wheathampstead Hertfordshire Al4 8Lw

Part single and part double rear extension. Part garage conversion. New front porch. Alterations to facade. Solar panels to roof. Associated landscapi...

St Albans
27 Oct 2025 Refused Archive 5/2025/1976

12 The Cleave Harpenden Hertfordshire Al5 5Sj

Change of use of amenity land (the grass verge to the side of the property) to residential curtilage with new garden wall and fence to side

St Albans
27 Oct 2025 Approved Archive 5/2025/1977

United Reformed Church Brewhouse Hill Wheathampstead Hertfordshire Al4 8Ag

Installation of multiple small air source heat pumps positioned on the northern elevation of the Chapel Gym (rear wall of the old church building) and...

St Albans
24 Oct 2025 Pending Archive 5/2025/1965

Gardeners Cottage Gustard Wood Wheathampstead Hertfordshire Al4 8Rn

Certificate of Lawfulness (proposed) - Like-for-like replacement of timber windows with double-glazed units featuring timber astragals, Re-cladding of...

St Albans
24 Oct 2025 Approved Archive 5/2025/1970

23 Granby Avenue Harpenden Hertfordshire Al5 5Qp

Two storey rear extension, single storey side and rear extension, alteration to openings and rooflights, replacement windows and doors, new roof awnin...

St Albans
23 Oct 2025 Approved Archive 5/2025/1961

Katherine Warington School Lower Luton Road Harpenden Hertfordshire Al5 5Fh

Discharge of Condition 3 (landscape and ecological management plan) of planning permission 5/2024/0230 dated 09/07/2024 for Proposed extension to car ...

St Albans
23 Oct 2025 Pending Archive 5/2025/1973

39 The Broadway Gustard Wood Wheathampstead Hertfordshire Al4 8Lw

Deemed application, on appeal against an Enforcement Notice - Two storey side, partial two storey rear, loft conversion and single storey rear extensi...

St Albans
22 Oct 2025 Pending Archive 5/2025/1948

122 Piggottshill Lane Harpenden Hertfordshire Al5 1Ls

Hip to gable loft conversion with rear dormer window and front rooflight and cladding on dormer window and addition of side window

St Albans
22 Oct 2025 Approved Archive 5/2025/1945

The Cottage Lamer Hill Gate Lower Gustard Wood Wheathampstead Hertfordshire Al4 8Rx

New front porch

St Albans
22 Oct 2025 Approved Archive 5/2025/1949

122 Piggottshill Lane Harpenden Hertfordshire Al5 1Ls

Certificate of Lawfulness (proposed) - Hip to gable loft conversion with rear dormer window and front rooflight and cladding on dormer window and addi...

St Albans
21 Oct 2025 Pending Archive TP/2025/0555

15 Ash Grove Wheathampstead Hertfordshire Al4 8Df

2x Hornbeams and 1x Lime Tree. 2 Hornbeam to reduce crowns as previously by approx 2-3m, shape accordingly and raise canopies by approx 2m. Large Lime...

St Albans
21 Oct 2025 Approved Archive 5/2025/1934

4 Batford Road Harpenden Hertfordshire Al5 5Ax

Loft extension to existing two bedroom terrace house, including roof lights to front elevation and double glazed aluminium windows

St Albans
20 Oct 2025 Pending Archive 5/2025/1927

40 Butterfield Road Wheathampstead Hertfordshire Al4 8Qh

Rear replacement extension with rooflight, and front and rear roof dormers

St Albans
20 Oct 2025 Approved Archive 5/2025/1928

42 Wroxham Way Harpenden Hertfordshire Al5 4Pr

Single storey side and rear extension. New garden room following demolition of existing garage. Roof and window alterations

St Albans
17 Oct 2025 Approved Archive 5/2025/1923

32 Grasmere Avenue Harpenden Hertfordshire Al5 5Ps

New basement construction under main house and partly under garden with rear light well with steps, high level window to library/study. Demolition of ...

St Albans
16 Oct 2025 Approved Archive 5/2025/1913

1 High Meads Wheathampstead Hertfordshire Al4 8Dn

Raised patio with glass balustrade enclosure

St Albans
15 Oct 2025 Approved Archive TP/2025/0540

8 Abbot John Mews Wheathampstead Hertfordshire Al4 8Dg

A small silver birch tree in the back garden which is now unfortunately dead and needs to be removed. It's right in the corner of the garden and badly...

St Albans
15 Oct 2025 Withdrawn Archive 5/2025/1902

65 Crabtree Lane Harpenden Hertfordshire Al5 5Px

Certificate of Lawfulness (proposed) - Single storey rear extension

St Albans
15 Oct 2025 Refused Archive 5/2025/1899

65 Crabtree Lane Harpenden Hertfordshire Al5 5Px

Single strorey rear extension and first floor side extension

St Albans
15 Oct 2025 Approved Archive 5/2025/1896

65 Crabtree Lane Harpenden Hertfordshire Al5 5Px

Conversion of Garage into a habitbale room and reaplace garage door with window

St Albans
15 Oct 2025 Withdrawn Archive 5/2025/1901

65 Crabtree Lane Harpenden Hertfordshire Al5 5Px

Certificate of Lawfulness (proposed) - Single storey rear extensions

St Albans
14 Oct 2025 Pending Archive 5/2025/1888

St Albans High School For Girls Prep School Codicote Road Wheathampstead Hertfordshire Al4 8Dj

Construction of changing room building providing 2 no. changing rooms and WC facilities, a canopy cover to the existing netball/tennis courts and asso...

St Albans
14 Oct 2025 Approved Archive 5/2025/1894

65 Crabtree Lane Harpenden Hertfordshire Al5 5Px

Single storey rear extension

St Albans
14 Oct 2025 Approved Archive 5/2025/1885

65 Crabtree Lane Harpenden Hertfordshire Al5 5Px

Certificate of Lawfulness (proposed) - Construction of a new loft conversion to create a bedroom with en-suite. Including proposals for a rear dormer ...

St Albans
14 Oct 2025 Approved Archive 5/2025/1893

65 Crabtree Lane Harpenden Hertfordshire Al5 5Px

Single storey rear extension

St Albans
14 Oct 2025 Approved Archive 5/2025/1895

65 Crabtree Lane Harpenden Hertfordshire Al5 5Px

Single Storey rear extension

St Albans
10 Oct 2025 Pending Archive 5/2025/1870

1 Waterside Station Road Harpenden Hertfordshire Al5 4Us

Discharge of Condition 4 (bicycle and bin stores) of planning permission 5/2023/1918 dated 25/06/2025 for Infill of the ground floor of Building 1 for...

St Albans
10 Oct 2025 Pending Archive 5/2025/1862

22 Weybourne Close Harpenden Hertfordshire Al5 5Re

Single storey front and rear extensions, loft conversion with dormer window to rear and rooflights to front, and construction of a garden outbuilding ...

St Albans
9 Oct 2025 Refused Archive 5/2025/1849

173 Lower Luton Road Wheathampstead Hertfordshire Al4 8Hq

Single storey side extension to existing detached garage to provide an additional garage with a pitched roof

St Albans
8 Oct 2025 Refused Archive 5/2025/1837

Crossfields House Lamer Lane Wheathampstead Hertfordshire Al4 8Rq

Demolition of single storey rear projections and construction of single storey rear extension with rooflights, two storey front extension, new front c...

St Albans
8 Oct 2025 Pending Archive 5/2025/1828

108 Lower Luton Road Wheathampstead Hertfordshire Al4 8Hh

Extend the existing drop kerb

St Albans
7 Oct 2025 Approved Archive 5/2025/1831

34 Gustard Wood Wheathampstead Hertfordshire Al4 8Rr

Certificate of Lawfulness (proposed) - Erection of Outbuilding for the purposes incidental to the dwellinghouse

St Albans
7 Oct 2025 Approved Archive 5/2025/1823

50 West Way Harpenden Hertfordshire Al5 4Rd

Discharge of Conditions 3 (materials), 8 (slab levels) and 9 (hard and soft landscaping) of planning permission 5/2025/0734 dated 05/09/2025 for Demol...

St Albans
3 Oct 2025 Pending Archive 5/2025/1807

106 Topstreet Way Harpenden Hertfordshire Al5 5Ts

Change of hip to gable roof to enable loft conversion with rear dormer window and front roof lights

St Albans
3 Oct 2025 Approved Archive TP/2025/0524

Hunters Lodge 17 Gustard Wood Wheathampstead Hertfordshire Al4 8Rp

T1 - Poplar - Pollard by 50% to reduce size as the tree has become very large and is stopping light from coming into the garden and to maintain the he...

St Albans
3 Oct 2025 Approved Archive TP/2025/0527

7 The Hill Wheathampstead Hertfordshire Al4 8Pw

Reduce Copper Beech by approx 2-3m. The mature tree has ganodermas, cavities and a weak union (previous reports have highlighted the union and there i...

St Albans
2 Oct 2025 Approved Archive 25/02329/FPH

12 Brownfield Way Blackmore End St Albans Hertfordshire AL4 8LL

Two storey front and rear extensions; single storey rear extension following demolition of existing conservatory. Alterations to roof and insertion of...

North Hertfordshire
1 Oct 2025 Pending Archive 5/2025/1794

22 Bury Green Wheathampstead Hertfordshire Al4 8De

Variation of Condition 2 (approved plans) to reduce the depth of the extension of planning permission 5/2025/0556 dated 24/06/2025 for New single stor...

St Albans
30 Sept 2025 Approved Archive TP/2025/0511

Wheathampstead House Codicote Road Wheathampstead Hertfordshire Al4 8Dj

1 x False acacia to remove in sections to ground level 1 x Douglas fir to remove in sections to ground level.

St Albans
22 Sept 2025 Approved Archive 5/2025/1728

31 Carisbrooke Road Harpenden Hertfordshire Al5 5Qs

Proposed single storey ground rear, two storey side, front porch enclosure, floor plan redesign and all associated works

St Albans
18 Sept 2025 Approved Archive 5/2025/1718

32 Chesterton Avenue Harpenden Hertfordshire Al5 5St

Demolition of existing conservatory and extension. Erection of single storey side and rear extensions, with alteration to openings

St Albans
15 Sept 2025 Approved Archive 5/2025/1818

The Manor House Mackerye End Harpenden Hertfordshire Al5 5Ds

Listed building Consent - Part demolition of rear single-storey extension and new rear single-storey extension

St Albans
15 Sept 2025 Refused Archive 5/2025/1700

The Manor House Mackerye End Harpenden Hertfordshire Al5 5Ds

Part demolition of rear single-storey extension and new rear single-storey extension

St Albans
15 Sept 2025 Refused Archive 5/2025/1704

6 Granary Close Wheathampstead Hertfordshire Al4 8Ba

Certificate of Lawfulness (proposed) - Addition of eight solar panels on East and West roof (four on either side), falling within the required require...

St Albans
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Data updated daily. Source: St Albans City and District Council planning portal.