Rendered detached garage build route

[AliG]

Hi,

 

Now that we have planning permission for a house we are looking to put in a separate application for a garage. It is a conservation area so no PD rights.

 

As the house is flat roofed with off white render, wood panels and 7016 windows we would expect the garage to look similar, so a 6x6m double garage with 7016 door, off white render, wood panels and a flat EPDM roof. Something roughly like the attached picture.

 

What is the best way to build this? It doesn't have to be insulated, used as a workshop or anything, just storage for a car and gardening equipment.

 

Can we just build a stick built timber frame and attach render board directly to the outside and OSB to the inside, maybe filling with rock wool? Would it need a cavity if it is rendered on the outside?

 

Or maybe it would be just as cheap to build it in single skin blockwork and render.

 

We had a quote for a very snazzy aluminium carport and storage, it was 20K! I reckon, a concrete base, and this kind of structure, plus a single motorised door could be brought in for around 15k?

 

 

 

[Jilly]

Double check the situation with the planning dept, as  I have pp to convert a stable in a Conservation Area, but all my PD rights removed.

 

In practice, this means I cannot make any applications for extension/chimney/garage etc until its been signed off and I can make a householder application.

 

Initially, I went in to speak to the duty officer (novice I suspect) and they told me I could apply for a 'variation of condition' to get an extension, which turned out to be completely incorrect and was refused (but they don't tell you why). I eventually got to speak to a  more experienced case officer after trying for a pre application meeting (which was shoved to the bottom of their pile as they are snowed under), and she explained the above. 

 

I wasted 6 months, so be careful. It doesn't mean you can't have it, but it may mean you have to be careful of timing with the application.

[AliG]

Thanks, I did discuss this with the architect who thought it would be OK to do a separate application. At worst it would delay the garage by a few months, we will put electrics , drainage and water supply to the expected position when we build the house as these can just be capped if not used.

[Russell griffiths]

Single block with block piers, if you want the inside walls flat you will need to go double block to have piers, single block will not stand up on its own, unless maybe a 150mm semi lightweight block. 

[AliG]

Thanks @Russell griffiths

 

We don't need flat walls.

 

Do you reckon single skin blockwork is cheaper/better quality than timber frame?

 

Looks like we are talking around £100 per square metre of rendered wall. So £7500 for the walls including lintel, £3500 for the roof, £2000 for the door fitted, £5000 for foundations and slab. Then guttering etc probably takes it up to £20k.

 

 

Edited July 27, 2020 by AliG