Budget venues South Yorkshire

Have you tried The Wentbridge Hotel in Pontefract or Tankersley Manor in Barnsley? Sorry I don't know of anywhere in Doncaster specifically.

Try Whitley Hall, near Sheffield. It's very nice and probably "too expensive" but if you are careful with your date then you may be able to get a good price. Whitley Hall has a relatively small function room, so they can't really attract the "big" weddings.

This article about how to really cut costs may help you. http://ww2.ollievision.co.uk/wp/index.php/save-money-on-your-wedding/

How budget is budget? Whiston Memorial Barn is wonderful, my Dad was involved with it, not sure it has outdoor space though, but the costs are really good, especially consdiering it includes venue decoration and it'slicensed for weddings so you could get wed there.:

https://www.manorialbarnwhiston.co.uk/

Tankersley, not cheap, Whitely Hall, not cheap either - but very beautiful

The Charnwood at Blyth has a marquee in the summer - not overly cheap though from what I remember. But Best Western hotels do offer some good wedidng packages (The Charnwood is a Best Western and it has a massive outdoor area)