Hello. Over garage extension plans. Thoughts appreciated.

[PipM]

Hi all

 

I have just applied for planning permission for an over garage extension. There existing garage will be knocked down, new foundations dug and double story extension built creating 2 new rooms upstairs (bedroom, with ensuite and walk in wardrobe).

 

I've never undertaken any project like this before so no doubt I'll be on here regularly looking for advice. I've attached the architects plans if anyone wants to comment on them.

 

My back of the fag packet budget is £80k, though I hope to get some change from that. I'm reasonably handy so some things I'll look do do myself like bathroom installation, decorating etc but for the most part I'm going to get a contractor in to manage the build. I know this isn't the cheapest route but I don't have the experience or time to do it my self. 

 

One thing I could do with some advice on is the soil drainage for the new en-suite. It won't be practical to join on to the existing soil stack as it's on the other side of the house so we'll have to put in a new one, drop it down through the garage and out under the back patio to join the existing sewer. Any idea how much this would cost ? Lets say around 7 meters of drainage would need to be dug (under my brand new patio......d'oh !!)

I'll also need to draw up a Party Wall Agreement with the neighbours. I'm assuming this is a few hundred ££ tops ?

 

Any thoughts on my budget or any thing else I should consider ?

 

Many thanks

 

 

 

[Temp]

Welcome to the forum. 

 

Have a Google and read "A guide to the Party Wall Act". This sets out the rules. It's possible the work you plan is not covered by the act.

 

If the act does apply and your neighbors are happy with your plans you just need a letter from them saying so. No cost to you. Think there is a template letter in the guide.

 

If they aren't happy then it can get very expensive with up to THREE surveyors needed all paid for by you. Might be better to see if you can redesign so the act doesn't apply.