Planning applications in St Albans

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Extensions & alterations
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Showing 50 of 380 applications
5/2026/0903 8 May 2026 Pending

11 Grange Court Road Harpenden AL5 1BY

Single Storey Garden Room

PPOR St Albans 8 May 2026
5/2026/0906 8 May 2026 Pending

3 Drakes Drive St Albans AL1 5AG

Formation of 1 new self-build dwelling and associated alterations to the existing property.

PPOR St Albans 8 May 2026
5/2026/0905 8 May 2026 Pending

Address not available

Various minor changes to site layout and dwellings - please refer to covering letter for full details

PPOR St Albans 8 May 2026
5/2026/0904 8 May 2026 Pending

Address not available

Various minor changes to site layout and dwellings - please refer to covering letter for full details

PPOR St Albans 8 May 2026
5/2026/0909 8 May 2026 Pending

9 B Milton Road Harpenden AL5 5LA

Installation of Replacement windows

PPOR St Albans 8 May 2026
5/2026/0895 7 May 2026 Pending

4 Hillside Road St Albans AL1 3QL

Alterations to the existing garage comprising of roof alteration, front extension, alterations to openings and garage conversion

PPOR St Albans 7 May 2026
5/2026/0894 7 May 2026 Pending

4 Hillside Road St Albans AL1 3QL

Rear dormer roof extension, installation of roof window, change of ground floor rear window to double door.

PPOR St Albans 7 May 2026
5/2026/0898 7 May 2026 Pending

6 Dymoke Green St Albans AL4 9LY

We have made the rear extension a bit narrower than originally planned. Also, we're not going to bother the internal walls(which were knocked through ...

PPOR St Albans 7 May 2026
5/2026/0900 7 May 2026 Pending

58 Brampton Road St Albans AL1 4PT

Erection of a rear dormer and side dormer over the back addition, raising the roof of the existing garage and existing rear extension (Was previously ...

PPOR St Albans 7 May 2026
5/2026/0897 6 May 2026 Under Consultation

34 Thirlmere Drive St Albans Hertfordshire AL1 5QR

Prior Notification - Single storey rear extension 2.95m in height x 4.00m in depth with 2.95m height to eaves

NCS St Albans 6 May 2026
5/2026/0896 6 May 2026 Under Consultation

15 Fovant Close Harpenden Hertfordshire AL5 1RN

Prior Notification - Single storey rear extension 3.60m in height x 6.00m in depth with 3.00m height to eaves

NCS St Albans 6 May 2026
5/2026/0886 6 May 2026 Pending

Plot 18 17 Tillage Close Tyttenhanger, St Albans Hertfordshire AL4 0FN

Proposed detached garage

PPOR St Albans 6 May 2026
5/2026/0869 3 May 2026 Under Consultation

6 Kimberley Road St Albans Hertfordshire AL3 5PX

Certificate of Lawfulness (proposed) - Installation of garden room for personal use and repositioning of the existing shed

CLP St Albans 3 May 2026
5/2026/0862 1 May 2026 Under Consultation

31 Broadstone Road Harpenden Hertfordshire AL5 1RB

Certificate of Lawfulness (Proposed) - Part of the existing garage to be converted with side windows and alterations to openings

CLP St Albans 1 May 2026
5/2026/0849 29 Apr 2026 Pending

Copsewood Lye Lane Bricket Wood Hertfordshire AL2 2DU

***CON***

PPOR St Albans 29 Apr 2026
5/2026/0843 28 Apr 2026 Under Consultation

438 Hatfield Road St Albans Hertfordshire AL4 0XS

Certificate of Lawfulness (Proposed) - Proposed Larger Home Extension - single storey rear extension to 6.0m deep

CLP St Albans 28 Apr 2026
5/2026/0842 28 Apr 2026 Pending

46 Midway St Albans Hertfordshire AL3 4BQ

***CON***

PPOR St Albans 28 Apr 2026
5/2026/0845 28 Apr 2026 Pending

Victoria Square Victoria Street St Albans Hertfordshire AL1 3TF

***CON***

PPOR St Albans 28 Apr 2026
5/2026/0808 23 Apr 2026 Under Consultation

3A Alexander Road London Colney Hertfordshire AL2 1HR

Certificate of Lawfulness (proposed) - Proposed single storey side extension and loft conversion

CLP St Albans 23 Apr 2026
5/2026/0807 23 Apr 2026 Under Consultation

9 Parva Close Harpenden Hertfordshire AL5 1RQ

Certificate of Lawfulness (Proposed) for the construction of foundations, walls and roofs, including windows and doors, in connection with a single st...

CLP St Albans 23 Apr 2026
5/2026/0799 20 Apr 2026 Under Consultation

40 Ardens Way St Albans Hertfordshire AL4 9UJ

Certificate of Lawfulness (proposed) - Outbuilding at rear for use as store/gym and home working space incidental to the main dwelling house

CLP St Albans 20 Apr 2026
5/2026/0795 20 Apr 2026 Under Consultation

18 Nelson Avenue St Albans Hertfordshire AL1 5RY

Proposed 4m single-storey rear extension, garage conversion, porch extension, and associated internal alterations

HSE St Albans 20 Apr 2026
5/2026/0787 20 Apr 2026 Under Consultation

159 Westfields St Albans Hertfordshire AL3 4JU

Raise existing garage roof to facilitate garage conversion

HSE St Albans 20 Apr 2026
5/2026/0786 20 Apr 2026 Under Consultation

159 Westfields St Albans Hertfordshire AL3 4JU

Certificate of Lawfulness (proposed) - Constructing single storey rear extension

CLP St Albans 20 Apr 2026
5/2026/0785 20 Apr 2026 Under Consultation

4 Highview Gardens St Albans Hertfordshire AL4 9JX

Small single storey front extension with single pitch roof with slighly larger kitchen window added

HSE St Albans 20 Apr 2026
5/2026/0784 20 Apr 2026 Under Consultation

5 Percy Drive Bricket Wood Hertfordshire AL2 3FU

Double and Single storey rear extension

HSE St Albans 20 Apr 2026
5/2026/0783 20 Apr 2026 Under Consultation

75A Ox Lane Harpenden Hertfordshire AL5 4PH

Certificate of Lawfulness (proposed) - The proposal involves the partial conversion of an existing integral garage to increase the size of the existin...

CLP St Albans 20 Apr 2026
5/2026/0774 17 Apr 2026 Under Consultation

69 Batchwood Drive St Albans Hertfordshire AL3 5UF

Single storey front extension, single storey side extension to replace the existing lean-to utility (same footprint), and 3m deep single storey rear e...

HSE St Albans 17 Apr 2026
5/2026/0776 17 Apr 2026 Under Consultation

10 Cannon Street St Albans Hertfordshire AL3 5JS

Proposed part side and rear extension with mono pitched roof including rooflights and alterations to rear openings

HSE St Albans 17 Apr 2026
5/2026/0775 17 Apr 2026 Under Consultation

11 Holcroft Road Batford Harpenden Hertfordshire AL5 5BG

Proposed side two storey extension over existing ground floor side extension and single storey rear extension

HSE St Albans 17 Apr 2026
5/2026/0770 16 Apr 2026 Under Consultation

81 Langley Grove Sandridge Hertfordshire AL4 9DS

Two storey side and single storey rear extension with internal alterations

HSE St Albans 16 Apr 2026
5/2026/0771 16 Apr 2026 Under Consultation

125 New House Park St Albans Hertfordshire AL1 1UH

Certificate of Lawfulness (proposed) - Replacement of existing rear French doors with a window within the existing opening, together with the replacem...

PPOR St Albans 16 Apr 2026
5/2026/0761 15 Apr 2026 Under Consultation

Block 9-15 Lectern Lane St Albans Hertfordshire AL1 2LZ

Renew current cladding panels with shiplap cementitious boards

MAL St Albans 15 Apr 2026
TP/2026/0182 15 Apr 2026 Withdrawn

133 London Road St Albans Hertfordshire AL1 1TA

Removal of the branch protruding through our fence and over our boundary [see photos] to restore the tree to it's original single trunk, and also enab...

W St Albans 15 Apr 2026
5/2026/0760 15 Apr 2026 Incomplete

1 Cymbeline Court The Lawns Mount Pleasant St Albans Hertfordshire AL3 4TZ

Two storey side extension, internal alterations, alterations to fenestration and new air-con unit outside of the house

INC St Albans 15 Apr 2026
5/2026/0765 15 Apr 2026 Incomplete

Clarendon Court Clarendon Road Harpenden Hertfordshire AL5 4PT

Replacement of current uPVC double-glazed casement windows, side-high windows and external patio doors in all flats and communal areas. Private balco...

INC St Albans 15 Apr 2026
5/2026/0764 15 Apr 2026 Incomplete

2 Stephens Way Redbourn Hertfordshire AL3 7DZ

Replace current uPVC windows with new uPVC windows and renew current cladding panels with shiplap cementitious boards

INC St Albans 15 Apr 2026
5/2026/0763 15 Apr 2026 Incomplete

20 Down Edge Redbourn Hertfordshire AL3 7JP

Replace current uPVC windows with new uPVC windows and renew current cladding panels with shiplap cementitious boards

INC St Albans 15 Apr 2026
5/2026/0762 15 Apr 2026 Incomplete

25 Lybury Lane Redbourn Hertfordshire AL3 7JN

Replace current uPVC windows with new uPVC windows and renew current cladding panels with shiplap cementitious boards

INC St Albans 15 Apr 2026
5/2026/0748 14 Apr 2026 Under Consultation

43 Jerome Drive St Albans Hertfordshire AL3 4LT

Proposed single storey, part double storey rear and single storey front extensions and alterations

HSE St Albans 14 Apr 2026
5/2026/0755 14 Apr 2026 Under Consultation

9 Byron Road Harpenden Hertfordshire AL5 4AD

Two storey rear extension, with garage conversion and enlarged front first floor dormer. Including internal alterations to existing ground and first f...

HSE St Albans 14 Apr 2026
5/2026/0754 14 Apr 2026 Under Consultation

4 Town Farm Wheathampstead Hertfordshire AL4 8QL

Certificate of Lawfulness (propposed) - Loft conversion with front and rear rooflights

CLP St Albans 14 Apr 2026
5/2026/0759 14 Apr 2026 Under Consultation

34 St James Road Harpenden Hertfordshire AL5 4PB

First floor rear roof extension to create bedroom

HSE St Albans 14 Apr 2026
5/2026/0753 14 Apr 2026 Under Consultation

41 Sunnydell Chiswell Green St Albans Hertfordshire AL2 3HP

Double storey side, part single storey front extensions, internal alterations and 3 nos. of skylight on new front roof slope

HSE St Albans 14 Apr 2026
5/2026/0749 14 Apr 2026 Under Consultation

14 Spooners Drive Park Street St Albans Hertfordshire AL2 2HL

Certificate of Lawfulness (proposed) - Single storey rear extension - as Prior Approval 5/2026/0358, single storey side extension with rooflight plus ...

CLP St Albans 14 Apr 2026
5/2026/0750 14 Apr 2026 Under Consultation

60 Verulam Road St Albans Hertfordshire AL3 4DH

Single storey rear extension, removal of chimney, front facing roof light and alteration to openings (following completion of works as permitted by pl...

HSE St Albans 14 Apr 2026
5/2026/0758 14 Apr 2026 Under Consultation

3A Alexander Road London Colney Hertfordshire AL2 1HR

Prior Approval - Single storey rear extension 3m in height x 6m in depth and 2.75m in height to the eaves

NCS St Albans 14 Apr 2026
5/2026/0752 14 Apr 2026 Incomplete

3 Victoria Square Victoria Street St Albans Hertfordshire AL1 3TF

An upwards extension, including a continuation of the existing pitched roof form and the introduction of rooflights, to facilitate the creation of fiv...

INC St Albans 14 Apr 2026
5/2026/0726 13 Apr 2026 Under Consultation

7 Lynch Court Princess Diana Drive St Albans Hertfordshire AL4 0FG

Proposed construction of a timber-framed, self enclosed bicycle storage shed (retrospective)

HSE St Albans 13 Apr 2026
5/2026/0728 13 Apr 2026 Under Consultation

14 Snatchup Redbourn Hertfordshire AL3 7HB

Rear single storey extension and porch to front of dwelling

HSE St Albans 13 Apr 2026
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Data updated 10 May 2026. Source: St Albans planning portal.