What order?

[gravelld]

I am performing a fabric upgrade on our house. Work to be done includes:

 

- EWI

- New windows, doors

- Establishing AT layer

- Digging out foundations for EWI

- Designed ventilation

- Resizing of window openings (enlarging and shrinking)

 

I have done:

 

- Overall aesthetic look (it's not really changed much, but thicker walls and more contemporary look to the joinery)

- Energy model

- Generic details for important installations, e.g. window installation, treatment of eaves (before deciding on manufacturers)

 

What I need to do:

 

- BC approval

- Planning approval (don't think there'll be much of this, not listed nor in conservation area)

- Choose suppliers and products

- Update details to follow systems chosen

- Arrange finance

 

What should my ordering be next? I don't want to get BC approval only to find our budget won't work for what we have got approval for! Should we finalise the entire design first?

[Mr Punter]

Yes, get the design and budget sorted.  Get plenty of quotes.  If within budget, refine, finalise and go ahead, if not, revise spec.