Boxy Posted Saturday at 10:54 Share Posted Saturday at 10:54 Self build roof going on next week and 5 inbuilt solar panels we’re going to be included-I emailed the planning dept on the 27th of December to see if I neede planning permission the replied 17th of January saying if I add them after the build is complete I don’t need planning permission but if there integrated into the roof the I need to apply for a planning amendment I cannot stop the build as every trade is booked in - I didn’t include solar panels in the design as planning went in October 2022 before the new building regulations and sap changes but because of the length of time planning took finally passed dec 2023 the regulations changed as the build didn’t start while may 2024 -I’m only looking at 5 inbuilt solar panels just to satisfy saps any help greatly appreciated Link to comment Share on other sites More sharing options...
ProDave Posted Saturday at 11:21 Share Posted Saturday at 11:21 Let them get built in. If they even notice and complain, apply retrospectively, and if refused fit some ON roof ones over the top to demonstrate what nonsense it is. During my planning, I only realised at the last minute that I needed PP for the ASHP so quickly added that at the last minute. All these sort of green updates should not be needing PP imho. 1 Link to comment Share on other sites More sharing options...
Boxy Posted Saturday at 11:34 Author Share Posted Saturday at 11:34 I agree there forcing renewables on to self builders to meet saps and then putting obstacles on your way to make it harder for you to do Link to comment Share on other sites More sharing options...
G and J Posted Saturday at 14:52 Share Posted Saturday at 14:52 Nudging us towards homes that help the planet a bit is no bad thing really. In some ways it’s no different from the increase in minimum insulation levels. In your shoes I’d build ‘em in, and be ready to put in for a variation of conditions after the event if needed. Link to comment Share on other sites More sharing options...
JohnMo Posted Saturday at 16:22 Share Posted Saturday at 16:22 First, if you need PV to scrape a pass with sap, you need to look at the quality of insulation and airtightness. Both could do with being improved. 5 PV isn't much, is that all you have room for. I would install up to 3.2kW (G98 limit). An amendment for adding solar is unlikely to get kicked back. On SAP and building regs revision is the one it states on your planning permission, not whatever is currently in force. Advantage of the Scottish system is you have to have a pre build sap done, that catches these changes before building warrant is issued. Link to comment Share on other sites More sharing options...
SteamyTea Posted Saturday at 19:06 Share Posted Saturday at 19:06 8 hours ago, Boxy said: I’m only looking at 5 inbuilt solar panels just to satisfy saps Why only 5, cheap at this stage to fill the whole roof up. 1 Link to comment Share on other sites More sharing options...
Onoff Posted Saturday at 20:29 Share Posted Saturday at 20:29 (edited) Just do it. The local authority won't want the bad press for kicking up on a sustainability element over a technicality. If they do just refer them to their own sustainability statement (there'll be one) and that you'll go to the papers as well as appeal. Edited Saturday at 20:29 by Onoff 1 Link to comment Share on other sites More sharing options...
Boxy Posted Sunday at 17:38 Author Share Posted Sunday at 17:38 22 hours ago, SteamyTea said: Why only 5, cheap at this stage to fill the whole roof up. We have a big peak at the front and a big dormer at the back so there’s only room for 5 panels and we have air to air heating and air conditioning and a Mixergy hot water cylinder so don’t need loads of solar Link to comment Share on other sites More sharing options...
Boxy Posted Sunday at 17:42 Author Share Posted Sunday at 17:42 On 18/01/2025 at 16:22, JohnMo said: First, if you need PV to scrape a pass with sap, you need to look at the quality of insulation and airtightness. Both could do with being improved. 5 PV isn't much, is that all you have room for. I would install up to 3.2kW (G98 limit). An amendment for adding solar is unlikely to get kicked back. On SAP and building regs revision is the one it states on your planning permission, not whatever is currently in force. Advantage of the Scottish system is you have to have a pre build sap done, that catches these changes before building warrant is issued. Y Link to comment Share on other sites More sharing options...
Boxy Posted Sunday at 17:48 Author Share Posted Sunday at 17:48 Scotland have got it right if I had known I should have had it done at design stage however 2 years to obtain planning permission things have changed we have 90mm wingspan cooltherm in the walls 150mm wingspan in the floor 200mm wool between floors and 300mm in the loft ,triple glazing and air to air heat pump with air conditioning ( which isn’t recognised in saps) but we are still 1 kw short ( everything will be sealed for airtest Link to comment Share on other sites More sharing options...
torre Posted Sunday at 18:00 Share Posted Sunday at 18:00 A non material amendment to add solar is almost certain to pass. If you want to cost effectively improve your SAP take a look at Waste Water Heat Recovery (WWHR) . Pretty easy to install (on the shower waste pipe) and add without drastically changing other plans Link to comment Share on other sites More sharing options...
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