I’m guessing you’ve already seen it, but my mate is currently trying to sell his house, modern place on Broadgate in Horsforth, for £280k. In your budget, in the catchment for the school etc.
We like Farsley when we looked. It was certainly on our shortlist. Nothing really came up that suited us, but nice area, and Caverley too. Also some of Rodley as well.
As el_boufador said, Rawdon hasn’t got much of a centre and is a bit strung out along the A65. There are some nice streets, but think the commute could be a bit grim, which is why we never seriously considered it.
Honestly though, you’ll never get us away from the Guiseley/Menston area I don’t think. After 5 months we love it here.