Solar and renewables in Three Rivers

Three Rivers received 39 renewable energy applications in the last 12 months, including 4 heat pumps. Of the 27 decided so far, 23 were approved. Most rooftop panels are permitted development, so the applications here are typically the larger or more sensitive schemes.

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All 11 Pending 6Approved 3Refused 1Withdrawn 1
Showing 11 of 11 applications
12 Aug 2026 Pending Consideration 26/1257/FUL

12 South Approach Moor Park Northwood Hertfordshire HA6 2ET

Construction of part single, part two-storey rear extension; loft conversion including new roof and increase in ridge height, installation of roofligh...

Full Application Three Rivers
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5 Aug 2026 Pending Consideration 26/1216/LBC

York House School Sarratt Road Rickmansworth Hertfordshire WD3 4LW

Listed Building Consent: Installation of solar panels on the roof

Listed Building Consent Three Rivers
View details Council site ↗
5 Aug 2026 Pending Consideration 26/1215/FUL

York House School Sarratt Road Rickmansworth Hertfordshire WD3 4LW

Installation of solar panels on the roofs

Full Application Three Rivers
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5 Aug 2026 Pending Consideration 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
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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
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14 Jul 2026 Approved 26/1140/PDNE

Croxley Danes School 48 Baldwins Lane Croxley Green Rickmansworth Hertfordshire WD3 3LR

Prior Approval Renewable Energy: Installation of roof-mounted solar panels

Prior Approval - Renewable Energy Three Rivers
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9 Jul 2026 Refused 26/1070/FUL

Willow Cottage Loudwater Lane Loudwater Rickmansworth Hertfordshire WD3 4HX

Removal of existing roof and construction of new roof of increased height to create loft level accommodation, including dormer, rooflights, solar pane...

Full Application Three Rivers
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3 Jul 2026 Approved 26/1006/CLPD

47 Russell Road Moor Park Northwood Hertfordshire HA6 2LP

Certificate of Lawfulness Proposed Development: Installation of an air source heat pump to rear

Certificate of Lawfulness - Proposed Use Three Rivers
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26 Jun 2026 Pending Consideration 26/0673/FUL

National Westminster Bank 159 - 161 High Street Rickmansworth Hertfordshire WD3 1BA

Extension and conversion of existing building to provide 2 commercial units (Use Class E) and erection of 7no. self-contained residential dwellings (U...

Full Application Three Rivers
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23 Jun 2026 Approved 26/0887/FUL

114 Whitelands Avenue Chorleywood Rickmansworth Hertfordshire WD3 5RG

Erection of side dormer to first floor level with side solar panels and rooflights; alterations to ground floor level rear roof form from hip to gable...

Full Application Three Rivers
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16 Jun 2026 Withdrawn 26/0949/FUL

Rear Of Dickinson House 132-146 New Road Dickinson Square Croxley Green Rickmansworth Hertfordshire WD3 3ET

Demolition of existing building and construction of two storey attached dwelling with associated rooflights, solar panels, amenity space and parking

Full Application Three Rivers
View details Council site ↗
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Frequently asked questions

Do you need planning permission for solar panels on a house?
Most rooftop solar PV is permitted development if it doesn't project above the highest part of the roof or more than 200mm from the surface. Conservation areas, listed buildings and World Heritage Sites usually require full planning permission or Listed Building Consent.
Do you need planning permission for an air-source heat pump?
In most cases an outdoor heat pump unit smaller than 1.5m³ (raised in 2025 from 0.6m³) and at least 1m from the boundary qualifies as permitted development. Listed buildings and conservation areas may need full permission.
How big can a solar farm be without planning permission?
Ground-mounted commercial solar farms above 50kW effectively always require full planning permission. Smaller rooftop installations on industrial or agricultural buildings can sometimes use prior-approval rights under Part 14 of the GPDO.
Can I get email alerts for new solar & renewables applications in Three Rivers?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new solar & renewables application published by Three Rivers. You can also narrow the alert to a postcode, street, or drawn area.

Solar & Renewables applications in nearby councils

Solar and renewables in Harrow27 in 12 months

Other application types in Three Rivers

Planned new homes in Three Rivers78 in 12 monthsHouse extensions in Three Rivers580 in 12 monthsChange of use applications in Three Rivers39 in 12 monthsDemolition plans in Three Rivers177 in 12 monthsSolar & Renewables in EnglandAll councils

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