That quote definitely woudn't include cost of percolation test. That is extremely cheap just for fees alone - I mustn't have done my architect research well enough when starting out on my house - it cost me over 8k to get to the planning stage you mentioned above.
And to be honest the house design ended up being so restricted by the planners (much to the absolute frustration of both myself and the architect) that in the end I probably could have bought some bog-standard layout off Irish Homes or somewhere, adapted it a little and got the same results. Pity, but hey, what can you do...
JK