Demolition plans in Three Rivers

193 demolition applications were submitted in Three Rivers in the last 12 months, from garages and outbuildings to whole buildings. Of the 147 decided so far, 133 were approved. Demolish-and-rebuild schemes also appear under planned new homes.

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Showing 31 of 31 applications
23 Oct 2026 Approved 23 Oct 26/1683/PDI

LEC1 56 Oxhey Grange Oxhey Hall Hertfordshire

Permited Development: Demolition of rail bridge and installation of a temporary bridge at 'LEC1 56 Oxhey Grange'

PD - Pt18 Miscellaneous development Three Rivers
7 Oct 2026 Pending Consideration 26/1609/FUL

Maintenance Compund The Aquadrome Frogmoor Lane Rickmansworth Hertfordshire

Demolition of existing office building; construction of replacement office building with solar panels; alterations to the shed including alterations t...

Full Application Three Rivers
6 Oct 2026 Pending Consideration 26/1448/FUL

42 Winton Drive Croxley Green Rickmansworth Hertfordshire WD3 3RD

Demolition of existing conservatory and construction of a single storey side and rear extension; alterations to the patio

Full Application Three Rivers
5 Oct 2026 Pending Consideration 26/1581/CLPD

Millstream 101 Uxbridge Road Rickmansworth Hertfordshire WD3 7DJ

Certificate of Lawfulness Proposed Development: Demolition of the existing rear dormer and first floor roof extension and construction of loft convers...

Certificate of Lawfulness - Proposed Use Three Rivers
2 Oct 2026 Pending Consideration 26/1562/FUL

Highwood Hall Barn Highwoodhall Lane Pimlico Hemel Hempstead Hertfordshire HP3 8PY

Demolition of existing outbuilding and erection of a two storey outbuilding including associated change of use of land for residential purposes.

Full Application Three Rivers
30 Sept 2026 Pending Consideration 26/1531/FUL

119 Oaklands Avenue Oxhey Hall Watford Hertfordshire WD19 4TN

Demolition of existing garage; construction of a single-storey side and rear extension.

Full Application Three Rivers
28 Sept 2026 Pending Consideration 26/1529/FUL

41 Main Avenue Moor Park Northwood Hertfordshire HA6 2LH

Change of existing side extension as outdoor area covered by pergola, demolition of conservatory and porch and construction of single storey front, si...

Full Application Three Rivers
23 Sept 2026 Pending Consideration 26/1457/FUL

5 Portland Heights Batchworth Lane Northwood HA6 3HE

Demolition of existing conservatory; construction of single storey side and rear extensions; alterations to the fenestration

Full Application Three Rivers
22 Sept 2026 Pending Consideration 26/1376/FUL

Trafalgar Cases Ltd Stanhope Works Primrose Hill Kings Langley Hertfordshire WD4 8HS

Demolition of existing building (Class B2/B8); construction of replacement building (Class B2/B8); Construction of 2 new car charging points

Full Application Three Rivers
22 Sept 2026 Pending Consideration 26/1485/FUL

Redbricks 2A Lemonfield Drive Garston Watford Hertfordshire WD25 9TR

Demolition of existing garage; construction of a two storey side and front extension

Full Application Three Rivers
18 Sept 2026 Pending Consideration 26/1487/FUL

48 Valley Road Rickmansworth Hertfordshire WD3 4DS

Demolition of existing car port; construction of a part single part two storey side and rear extension; alteration to fenestration

Full Application Three Rivers
16 Sept 2026 Pending Consideration 26/1471/FUL

6 Sycamore Approach Croxley Green Rickmansworth Hertfordshire WD3 3TN

Demolition of existing garage and front entry porch; construction of a single storey front, side and rear extensions; internal alterations; alteration...

Full Application Three Rivers
15 Sept 2026 Pending Consideration 26/1434/FUL

70 Berry Lane Mill End Rickmansworth Hertfordshire WD3 4DD

Demolition of existing garage and erection of a single storey front extension and a part single, part two storey side extension

Full Application Three Rivers
10 Sept 2026 Pending Consideration 26/1427/RSP

6 Woodlands Road Nash Mills Hemel Hempstead Hertfordshire HP3 8RZ

Retrospective Application: Demolition of existing outbuilding and construction of replacement outbuilding

Retrospective application Three Rivers
9 Sept 2026 Pending Consideration 26/1424/FUL

53 Brookdene Avenue Oxhey Hall Watford Hertfordshire WD19 4LG

Demolition of existing side projection, conversion of existing garage into habitable accommodation and alterations to garage roof form from flat roof ...

Full Application Three Rivers
2 Sept 2026 Pending Consideration 26/1384/FUL

Swandrift Trout Rise Loudwater Rickmansworth Hertfordshire WD3 4JZ

Demolition of existing conservatory and construction of part single, part two storey rear extension, single storey side extension, extension to double...

Full Application Three Rivers
1 Sept 2026 Approved 23 Oct 26/1372/FUL

108 Winton Drive Croxley Green Rickmansworth Hertfordshire WD3 3QT

Demolition of existing conservatory and side extension; construction of a single storey front, side and rear extension with rooflights

Full Application Three Rivers
26 Aug 2026 Awaiting decision 26/1359/FUL

36 Girton Way Croxley Green Rickmansworth Hertfordshire WD3 3QN

Construction of single storey rear extension; alterations to landscaping including demolition of outbuilding and construction of outdoor kitchen; inte...

Full Application Three Rivers
24 Aug 2026 Pending Consideration 26/1265/FUL

6 Chiltern Drive Mill End Rickmansworth Hertfordshire WD3 8JS

Demolition of existing side projection and construction of a new two storey attached dwelling; associated subdivision of site and new access.

Full Application Three Rivers
19 Aug 2026 Approved 1 Oct 26/1277/FUL

17 Lysander Way Abbots Langley Hertfordshire WD5 0TN

Demolition of existing conservatory and construction of new single storey rear extension

Full Application Three Rivers
18 Aug 2026 Refused 13 Oct 26/1220/FUL

28A Sandy Lodge Way Northwood HA6 2AS

Substantial demolition of the existing dwelling and the part single part two storey front and rear extensions; replacement of roof to include second l...

Full Application Three Rivers
14 Aug 2026 Approved 16 Oct 26/1302/FUL

65 Harvey Road Croxley Green Rickmansworth Hertfordshire WD3 3BS

Conversion of garage into habitable accommodation; demolition of existing rear existing extension; construction of part single, part two storey rear e...

Full Application Three Rivers
13 Aug 2026 Approved 7 Oct 26/1284/FUL

4 Westland Close Leavesden Watford Hertfordshire WD25 7GH

Demolition of existing conservatory and construction of single storey rear extension

Full Application Three Rivers
13 Aug 2026 Approved 7 Oct 26/1297/CLPD

11 The Courtway Carpenders Park Watford Hertfordshire WD19 5DP

Certificate of Lawfulness Proposed Development: Loft conversion including hip to gable roof extension; construction of a rear dormer; installation of ...

Certificate of Lawfulness - Proposed Use Three Rivers
13 Aug 2026 Awaiting decision 26/1273/FUL

27 Davenham Avenue Northwood HA6 3HW

Demolition of existing side extension; construction of two-storey side and rear extension

Full Application Three Rivers
6 Aug 2026 Approved 30 Sep 26/1224/RSP

The Bell House 111 Harefield Road Rickmansworth Hertfordshire WD3 1PB

Part Retrospective: Demolition of existing conservatory and construction of single storey side and rear extensions, loft conversion including side dor...

Retrospective application Three Rivers
6 Aug 2026 Approved 6 Oct 26/1260/FUL

16 Grosvenor Road Northwood HA6 3HJ

Demolition of existing conservatory; construction of single storey rear extension; construction of front entry porch; construction of front dormer win...

Full Application Three Rivers
5 Aug 2026 Approved 29 Sep 26/1238/FUL

Toledo The Green Sarratt Rickmansworth Hertfordshire WD3 6BS

Demolition of the existing dwelling and associated buildings; construction of detached two storey dwelling, with basement; installation of solar panel...

Full Application Three Rivers
5 Aug 2026 Pending Consideration 26/1243/FUL

43 Copthorne Road Croxley Green Rickmansworth Hertfordshire WD3 4AB

Demolition of existing dwelling; construction of two storey detached dwelling with accommodation in the roof space served by front and rear dormer win...

Full Application Three Rivers
3 Aug 2026 Approved 23 Sep 26/1235/CLPD

2 On The Hill Carpenders Park Watford Hertfordshire WD19 5DR

Certificate of Lawfulness Proposed Development: Demolition of existing extension and construction of single storey rear extensions.

Certificate of Lawfulness - Proposed Use Three Rivers
31 Jul 2026 Pending Consideration 26/1213/LBC

The Court Rickmansworth Road Chorleywood Rickmansworth Hertfordshire WD3 5SG

Listed Building Consent: Substantial demolition and reconstruction of existing outbuilding for use as habitable accommodation

Listed Building Consent Three Rivers
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Frequently asked questions

Do you need planning permission to demolish a building?
Most demolition outside conservation areas is permitted development under Part 11 of the GPDO, but you must submit a prior-approval application covering method and restoration. Demolition of dwellinghouses always needs prior approval, even where permitted development applies.
What is a 'replacement dwelling' application?
Planning permission to demolish an existing dwelling and replace it with a new one. The principle is not automatic: councils assess the replacement against local policy on impact, scale, design and any heritage or rural-character considerations.
Can I get email alerts for new demolition applications in Three Rivers?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new demolition application published by Three Rivers. You can also narrow the alert to a postcode, street, or drawn area.

We check Three Rivers's planning portal daily. New demolition applications appear here within a day of being published.