Originally Posted by
MSPeconomist
If the hotel is selling a club level room or other room category defined by lounge access, there should be a lounge. .
That's how I check as well. Moreover you really do need to check out the FT hotel thread to know whether the lounge offers anything worth having, or is just a room with a coffee machine.
However I suspect that the OP was interested in limiting a broader search to only those hotels with lounges. AFAIK that isn't possible.