unable to describe this one:extension

Hi guys

A neighbour of mine wants to extend their kitchen about 3 meters towards the garden and 3 meters width-ways and according the planing control he doesnt need permission as long as he meets a certain criteria.

What he has asked me is that he wants to build sort of dwarf walls about 1m high then have sort of big sheets of glass going all the way around but didnt know what type of glass to buy or windows to buy.

I guess this is slightly like a conservatory

If anyone can imagine or know what im talking about it would be grea to hear from you as ive searched the net but cant find anything.

So to explain a bit more the walls will be a metre high from ground level then a wall plate then maybe wooden frames maybe outlining the structure then another wall plate on top of these then another wall plate and his roof.

It sounds a bit mad when i read it back but if anyone can help it would be appreciated.

thank you


p.s

do you think he should maybe ask in a local joinery whether they could knock something up for him as long as he knows what he wants.

I feel Im going to be playing a big in this some how

I don't understand the question or the problem.

You've described the design, so what is the issue?

As long as he sorts out the method of supporting the roof, and the SAP calcs then that's it.

The glass will be normal part L1a compliant, and safety glass in areas designared in part n

Yes a joiner can make the frame, if they are given the specifications

What you’re describing sounds like a garden room, basically a conservatory with a proper roof on it! There are many companies who specialise in these or you can get glazing units & even complete frames made to more or less any spec. or configuration you want but you may have to pay a premium. Unless you’re familiar with such structures, it’s not the sort of thing I would advise for DIY design; a tiled roof will weigh considerably more than a normal cons. polycarbonate roof so &, as woody says, the support &/or frames have to be constructed to a calculated design, you can’t just throw up some 4 x 2 & hope for the best!

Although the extension may not need PP, unless it complies with criteria that make it a temporary structure (% of glazing, separate from main house etc.), it will still have to comply with Building Regs. in all other aspects. You need to be careful of the effect of all that glass & your LABC may require provision of heat loss calculations to prove it satisfies current BR’s for thermal efficiency.

Hi guys

thanks for the replies, your right I didnt explain that too well did I lol (it was quite late,sorry)


After googling garden rooms thats exactly what hes after, however he wants to build it himself.

It would be probably something like this

http://www.oakconservatories.co.uk/contemporary.htm

With the roof being glass and not covered

What I want to know is, once the dwarf wall is built, assuming the correct size wood is used, can a wallplate be put on top of the wall, then skew nailling the frames into the plate from the bottom? would this be the general way to go about securing the frames to the plate? or would you use brackets?

Im thinking also maybe he could get the frames made at a local joinery with the windows and secure this by skew nailing it to the plate and also nailing or bracketfixing the frame to a corner style beam.

You dont use a wall plate.

The cill is bedded onto the brickwork and the self-weight, together with the door frame fixed into the reveals will mean that the frame is not going anywhere