Rear extension into a garden with a swimming pool

[Sidd]

Hi Community.

I am planning to obtain a planning permission to build a rear extension in my detached home. The complication is that the boundary of the extension will be within 'zone of influence' of a water retaining body i,e a swimming pool. The max depth of the pool is 1.5metres and the extension will be around 2.5metres from the boundary of the extension. I have had builders mention that the works could be complicated on account of 1. deeper foundation required 2. access issues. I also forsee building regulation requirements to be tough. I have attached a (blurry) top view showing the property and have tried to indicate where the extension would be build.
What are my options to reduce the complexity of the extension (and as result reduce build cost) ? 

Is access going to be big issue ? 

What are the best options to cover the pool to stop debris from coming in ?

 

[Redbeard]

59 minutes ago, Sidd said:

Is access going to be big issue ? 

Maybe. I cannot see a side path, but maybe there is, on the RHS. Can you get down there all the stuff you need? If it is a narrow path then there may be a lot of double-handling; for example pallets of bricks need to be stored at front and barrowed in small loads. Etc. etc x lots.

 

You need an SE to design footings which will 'cut the mustard' with the least possible digging and impact on the pool. @Gus Potter may be along later.

 

What is the green bit next to the proposed ext'n? Is it a hard-standing or the roof of something else?

1 hour ago, Sidd said:

What are my options to reduce the complexity of the extension

A lot may depend on whether you are having this wholly built by mainstream builders, or you are having significant input yourself. One person's 'fiddly' is another's 'joy of detailing'. And again, in terms of cost reduction, if you are providing say 75% of the labour after footings, and you are good with blocks, then building in block may be the answer. If you are good with wood, then TF... etc. So, is this a 'contractor job' or are you getting your hands dirty? The more detail you can give re 'variables' the more informed an answer we can give.

 

I am visualising v deep footings next to the pool (ooh err!) but I am not a Structural Engineer.