Architect failing to provide me with plans

saversfriend

Hello,
In summary:
We have had plans for an extension drawn up by an architect.  Our contract includes any changes requested to the plans.  Planning permission and building regs have been approved, and the architect was paid in advance.  There were delays in the process caused by the architect, but we got there in the end.

Having had quotes, a few issues with the plans have come to light (relatively minor things like a couple of details missing, a few pipes in the way of a new doorway (missed in the architect's survey), a boiler flue needing re-routing, etc.
I contacted the architect to ask for a revision to the plans at the start of Feb and he promised them "a week or two".  For the past month I have been proactively asking for updates and on 6 occasions now, the architect has given me a time frame and failed to meet it.  Excuses include computer repair, children at home, "COVID delays" and "I've got an unprecedented workload".  I am almost waiting for "The dog ate my plans".
Today I was due to meet a builder to go through the plans (and I really need to have the final plans before we can seal the deal) and the architect promised the plans would be with me in time for this deadline (he was very much aware of the meeting and agreed to have the plans ready for that specific meeting earlier in the week) - but again he failed to provide and the meeting had to be cancelled.  He has now said he will get the plans sorted by the end of the weekend.  I have absolutely no expectation this will happen though.

What are the next steps. I am not quite sure of my rights and would be very greatful if someone could point me in the right direction for the next steps I should take...
My general thoughts are:
1 - Set the architect a deadline and say I will be leaving to a new architect if he fails (due to breach of contract??).  Either say this now or at end of the weekend deadline.
2 - If he fails to meet new deadline, then I find a new architect.

3 - I pay the new architect and seek reimbursement from current architect (hopefully amicably, but through small claims court if needed).

Of course the annoying thing with the above is that we are only talking about a few hours of work at the most - but changing to a new architect will mean a new person learning my house, checking the existing plans, etc etc - all of which will take more time and money.  But if I go on as I am now with delay after delay and excuse after excuse, and the extension may never be built!
Thanks in advance.

theonlywayisup

Not ideal, but if the missing details are a few pipes and a doorway, then it's not the end of the world to give the drawings you have may be suitable for you to carry on.