Hi Pebbles!
To me, £7.5 grand is 7.5 grand! that's a lovely holiday of a lifetime for you and your family! it's a second hand car with some dosh put away for savings, it's a start of a small business for you or lots of clothes and shoes and handbags!!!
With house prices being as they are, some buyers can literally just take their pick and people like the property developer put in lower offers so entice movement.
As all this takes 'time' I'd suggest that you approach the developer guy and say "look, we've got a solid offer of £142500 and all we have to do is wait for that to go through which we can.. that's a full 7.5 Grand above your offer which makes me think it's worthwhile to wait for it to go through, however i'd be tempted to sell to you as you are offering a quicker completion for £138500, if he murmurs, as of course he will, just say lets meet in the somewhere in the middle - you get a deal and we get a deal"
how does that sound?!
DtM! West London & Slough UK!