How much are simaliar properties selling for in the same location?
Roughly around that price
How large is your disire to own the property?
Yes I really want it! but to be comfortable in mortgage term would be looking at around 240k - would it be unreasonable to offer 20k less?
If the answer to all the above is a positive refection on the property then, I would offer the asking price of maybe 5k below.
Its you choice and you need to way up the pros and cons.