Generally architects charge around 10% of the projected project cost, so youll understand why its in theyre interest to overprice a job
In my last project (2023/4) i was told £3300 per square meter, when i actually requested the breakdown it was clear why the guess was so high, they had speced unneeded items, super high end brands that you cant even buy in regular merchants, i was even speced lime plaster which can only be bought in France!
Once i went through the whole breakdown i changed all the spec to the cheapest items that can be bought, and asked them to remove brand names, the point of this was to bring the architects quote down which it did durastically.
We ended up at £2050 psm, a massive difference!!
Remember if you tell the architect youre intending to buy the cheapest £1.99 wickes tiles then thats what he must quote your psm for, you pay them so dont be shy to tell them what you want. This doesnt mean that you have to use those tiles btw.
Another thing to tell them is your builders quote, state it at 60% of what your actually paying, they factor this into the psm price, obviously theyll spec that your using the most expensive builders in the land and your psm will reflect this which in turn will help the architects fee
Goodluck