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You can get 25 - 15mm "Reducing couplers". Takes 25mm MDPE and 15mm plastic or copper pipe... https://www.bes.co.uk/25-mm-x-15-mm-mdpe-x-polyfit-adaptor-polypipe-18155?ref=gs&photo=true&gclid=Cj0KCQiAmsrxBRDaARIsANyiD1rofPhP08F0DLxy6Z7-tqLEefJ8MZL_vLbe2xcIBpV3OI1xfAC--i4aAr9AEALw_wcB Most of the "unequal T's" or "Reducing T's" seem to be 25mm down to 20mm.

You might need to build a circuit the performs a logical OR function so that if light switch A or B is turned on power is sent to the fan. I think this can be done using double pole switches. One pole sends power to the light, the other pole sends power to the fan. Both rooms would need to be on same circuit. Will need more cores in the wire from light down to switches than normal.

No. The CIL is meant to be a formulae applied to all developments equally, although I think they can limit it to some areas of the country. An S106 agreement could be used though.

The CIL is a formula that should be applied equally to all developments that aren't exempt. S106 contributions are said to be voluntary but they aren't really. I would be surprised if such an explicit arrangement was be legal. However... What they probably mean is...developments such as your two houses would put an unacceptable strain on local roads unless you provided land to improve them. Your contribution of land (perhaps by way of a section 106 agreement) is needed to make your planning application acceptable in planning terms :-)

No there are other issues with GU10 LED as well. Each GU10 bulb has to contain a circuit to reduce mains voltage to suit the LED chips. That circuit tends to fail before the LEDs themselves. On "proper" LED fittings with non-replaceable bulbs that circuit doesn't have to be crammed into the bulb it can be bigger and runs cooler.

+1 to most of the above. We fitted GU10 and would go a different route now. GU10 are ok if you fit wide angle LED bulbs but they seem to be getting harder to find - at least in physical stores.

Only taught at two universities - Southampton and Salford - and he has offers from both. Just needs to pass his A levels now!

Check the pitch on the garden Room roof. With a window on the house the pitch might be too low for some types of tile. On version 2.. the exterior wall upstairs will need to be supported on something, either interior walls downstairs or steel beams. It looks like you may have interior walls?

Last week on radio 4 an expert on 5g said that one difference between 3/4g and 5g was that 5g didn't really have separate "core" and "peripheral" parts. Think he said there wasn't a core. That somewhat makes a nonsense of the government saying Huawei kit wouldn't be used in the core of the 5g network.

Sorry if I'm being dim but I don't quite understand your situation. Ok you have a joint mortgage on the family home but why do you need to borrow £350k if the new build is complete? Is it to pay off a self build mortgage on the new place or the joint mortgage on the family home or something else? You might need to be a bit careful because if you let out a new build you can end up having to repay the VAT you reclaimed. Old article but still valid I believe.. https://www.glovers.co.uk/news-articles307.html "Developers choosing to let their newly built properties are for VAT purposes making an exempt supply, under which VAT incurred in the construction cannot be recovered. This is because they are then operating as investors instead of developers. Consequently some of the VAT recovered when the developer intended to sell the property must be repaid."

https://www.gsecg.com/benefits/secondary-glazing-sound-insulation/ "To achieve optimum performance we often advise that secondary glazing is installed with a gap of 150mm – 200mm from the primary window."

+1 to @Dreadnaught.When the M3 motorway was built near my parents house my father fitted sealed unit double glazing. Soon after he had finished we were told that we would be offered free double glazing to reduce noise. The expert they sent told us that double glazing designed to minimise noise should have a much bigger air gap - something like 5-6 inches. We ended up with tripple glazing - the inner pane being secondary double glazing fitted to the inner edge of window sills with a big air gap. These could be opened to put photos etc on the window sills. I don't know for sure if that's the best design but if you can wait a few years my son hopes to study Acoustical Engineering!

More emails from before the renovation... https://www.theguardian.com/uk-news/2020/jan/28/grenfell-tower-refurbishers-knew-cladding-would-fail-inquiry-told

Instead of screws into plugs would through bolts be an option?... https://www.screwfix.com/p/fischer-fxa-throughbolts-m12-x-116mm-20-pack/48990?tc=OA3&ds_kid=92700049190944768&gclsrc=aw.ds&ds_rl=1241687&ds_rl=1245250&ds_rl=1249413&gclid=Cj0KCQiAsbrxBRDpARIsAAnnz_MDNXkrcSF3wERpJx-6usMCqiRCOACU9yAY5Rt2kUgk4hJJGtW95NgaAvn3EALw_wcB

Looks like they all plan to drop each other in it. My guess is there will be some sort of prosecution and certainly many civil cases. Just hope there is some money left over for the victims families after the lawyers have taken their cut.

Shocking revelations on day one of part 2... https://www.theguardian.com/uk-news/2020/jan/27/grenfell-tower-inquiry-companies-passing-the-buck-on-responsibility "....Arconic knew the fire performance of its Reynobond polyethylene-filled panels was below the minimum required for facades in Europe..." "....Claude Wehrle, an Arconic official, had explained in internal emails in 2011 that the fire rating of the panels had dropped to class E from class B and so were “unsuitable for use on building facades” in Europe. But, he said, “we can still work with regulators who are not as restrictive”." "In another email in 2015, Wehrle admitted that Reynobond PE was “dangerous on facades and everything should be transferred to (FR) fire-resistant as a matter of urgency”." "....counsel for Rydon, the main contractor, who said: “Arconic continued to use the [class B] certificate to promote sales of Reynobond and did so specifically in the case of Grenfell Tower.” and more..

Reminder.. Currently if you move house you have 18 months to sell the old one before it starts attracting CGT. This is reducing to 9 months in April. In addition if you have to pay CGT you will only have 30 days after the sale to pay it ! If you sell after nine months (eg after 12 months) it's not just the gain in the extra 3 months you have to worry about. The calculation is more complicated.

Try screwing one into a sample bit of wood before doing it for real. I found I sheared off some bolts if I didn't drill pilot holes. Something like M3.5 maybe enough. Long bits are available. Ideally the screws should be long enough so the threaded part is only in the lower bit of wood. If the threaded part bridges the gap between the two it may prevent the two bits of wood pulling together. Sorry if you know this stuff.

We have one or two joints in engineered oak that move with the seasons. They open in winter when the air is dry and close in summer when it's humid. I'm not sure I would fill any gaps in winter.

There are traps you can make from a bucket of water that will keep working for a long time and catch many mice. See youtube.

What "use class" do the planners think it has? If they think it's an agricultural building then it might be possible to rent it to a farmer for 6 months. Then reapply for planning permission once its eligible. I don't think you have to pay rates on an agricultural barn.

Are you eligible for the self build exemption? It's not 100% clear if the self build exemption is meant to cover barn conversions because the legislation talks about "new build". Some councils allow it to apply to barn conversions and see the case I found that was settled before it went to court..

Some have perforations all over, others have perforation on just the top or bottom of the pipe. The latter can be used with perforated half either up or down.... Up - typically used as a land drain to collect water and send it somewhere else. Down - typically used to create a drainage field/soakaway to disperse water collected elsewhere. The Paving Expert web site has a lot of info on this sort of thing.

Both have insulation under the concrete slab. The main difference is how they deal with the cold bridge formed where the inner leaf of the outside walls reaches the ground. For example in many houses this leaf is block and rests on the foundations - so it penetrates through the floor insulation. There are many ways around the problem. One is to extend the insulation under the inner leaf and build the inner leaf resting on the slab rather than the foundations. That way the insulation under the floor joins u with insulation in the walls. https://images.app.goo.gl/fqbHMhnXRw9P4YwL7 [/img]

It was a field between a Church and 16C Cottage. Already had PP but we needed more than a year to get it changed. I'm afraid its 12 years ago. As I recall the company we got Site Insurance from was able to delay the start date of the "site" part and give us just the public liability part. Sorry I can't find details of the company in my files.