I did the same thing as the OP 12 months ago in London.
So far the prices in the area I offered in are down 15% and dont look like they will stop falling any time soon.
That's £60k off in 12 months for me!!! That would have been most of my hard earned deposit gone !!!!
The £15K in rent I pay pails into insignificance
I nearly made the biggest mistake in my life buying, so go on girl, pull out.
If you've seen a 3% so far this year, on a 400K+ house that's your rent covered.
God knows how much and how fast the prices will fall.
If the immigrants are going home or the mortgage rates shoot up we might see some massive falls. I'd certainly wait till mortgage rates are back above 3% before buying now.
Some people are talking about 80% off in the rougher parts of London!!!
I was a bit skeptical about that but Hong Kong collapsed 60% in the 90's!!!!
Lastly, there are some quite sinister posts on here trying to bully the OP ( black listing by agents etc ).
If you have to ask for financial advice on an internet forum it's probably best you hold off buying.
Lastly, dont believe everything you read on forums, they seem to be full of vested interest EA type bullies trying to get people to buy houses an crazy prices. A bit like the mad emails I get daily now about buying bit coin.
If a deal is too good to be true...