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Converting loft AND adding rear extension

(19 Posts)
ThunderboltKid Thu 31-Jul-14 14:09:01

We're in the process of buying a 3 bed semi which we intend to add a loft conversion to, and a single storey rear extension.

Is there any benefit to doing this both at the same time? (I.e. Using same contractors) or should we do one and then start planning the other? And if the latter, which one would you recommend first?

MummytoMog Thu 31-Jul-14 14:26:52

Do loft conversion first, then do extension. You will probably be able to do at least one, if not both, under permitted development. I would dangle the extension under the nose of the builder doing the loft conversion as an incentive to being a nice builder and doing a good, timely job. We did a loft conversion with a two storey extension following straight onwards. Where we did save money was by having the plastering for both done at the same time and the decorating.

Hong888 Thu 31-Jul-14 14:33:40

I am in similar situation. But we can enjoy a rear 1-storey extension more than a extra room at loft at the moment. If I build in this order, extension then loft with dormer, will there be any scaffolding issue as it may have to sit on top of the side extension roof rather than the ground?

ThunderboltKid Thu 31-Jul-14 14:53:15

Yes both are permitted development.

Hong888 that is a really good point about scaffolding! Hadn't even considered that. But we too would have much more initial enjoyment out of the extension that the loft.

Glittertwins Thu 31-Jul-14 15:23:36

The size of the extension can be bigger under permitted development if you do the loft conversion first. This is because the inhabitable volume of your house is increased with the loft so the percentage of the downstairs can now be bigger. It works this way around as you will be constrained on the size of your roof but not necessarily on the single storey.

LondonGirl83 Thu 31-Jul-14 15:28:13

Glittertwins the rules don't work like that anymore.

We did both at the same time. The main advantage is that its over faster. I know people who did one with the intention of doing the other but once the first bit was over couldn't take the idea of the disruption again and have never botherd.

MummytoMog Thu 31-Jul-14 15:37:17

Our scaffolding for the roof sat directly over what then became our extension. So yes, worth considering. We had to do the loft first to get planning permission granted on our extension, but our builder told us it was the more sensible way to do it. I didn't find the loft desperately disruptive (apart from the occasional big footed builder stepping through the ceiling) but the extension was hell on earth.

Hong888 Thu 31-Jul-14 15:55:52

Thunder - here is a pic of bridge over scaffolding I found on google.

Scaffolding both front and back of the house tho.

ThunderboltKid Thu 31-Jul-14 16:36:41

Permitted development has changed now, so we know our extension can only be 3m out anyway, regardless of current size.

DH's concern is that if we do one, we'll end up putting off the other because we can't face the disruption.

We can move into out in-laws house up the road, which is thankfully quite large, but I wouldn't want to stay there too long. I guess doing both at the same time is probably the quickest option and get it done and dusted!

Thanks everyone

Hooliesmoolies Thu 31-Jul-14 17:27:33

If you can afford to do both at once then do. We did extension first then loft. Scaffolding is no issue - it rests on the extension walls. The living space downstairs is the amazing bit so if I was doing it again it is definitely the right way round for us.

irisgrey Thu 31-Jul-14 17:52:31

We have just done both at once. So glad we did it all at the same time because we have serious building fatigue and wouldn't want to start a second set of work any time soon. We stayed in the house while it was being done which probably added to the need for it to be over!

weaselwords Thu 31-Jul-14 17:56:10

We did both at the same time too. There is a lot to be said for getting it over and done with in one go and it was cheaper this way too.

RiverTam Thu 31-Jul-14 18:01:06

you can move out. Your neighbours can't. As someone who had to put with a shed-load of disruption when NDN did their extension (and is going to have to put up with more from new neighbours) do whatever causes the least disruption to them.

curiousgeorgie Thu 31-Jul-14 18:05:17

I would have them done at the same time if you have somewhere to stay?

If I didn't then I'd do the loft first, and if happy with the work get the same company to do the rear extension.

I don't think I could live with the disruption of both at once.

ThunderboltKid Thu 31-Jul-14 18:42:51

RiverTam Thanks, something else I hadn't really considered. The neighbour is elderly (80, but not frail - still active etc) and although I know it will be disruptive to her, I'm keen to keep her onside as much as we can.

RiverTam Thu 31-Jul-14 18:57:25

yes, do, especially if, as I would assume, she is retired and therefore at home a lot. When NDN did his, I was working at home (and very early days PG too, which didn't help) so there was no getting away from it.

ThunderboltKid Thu 31-Jul-14 21:36:45

So those that did it at the same time, did you find builders who would do both, or did you use different builders? (Ie a loft conversion specialist?)

Glittertwins Fri 01-Aug-14 13:51:55

Fair enough.

LondonGirl83 Fri 01-Aug-14 14:39:31

Most builder can do both easily. Just make sure they are experienced at both.

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