Pricey south-east home counties here
Grass livery/Grazing only (rarer than hen's teeth): c.£150 pcm (with extra for winter hay etc on top)
DIY with stable and facilities (school etc) but you buy your own hay/bedding: c.£200 pcm
DIY with bedding and hay included: £250 -£300 pcm depending on niceness of yard, quality of grazing, straw vs shavings, how much bedding you're allowed to use etc.
5 day livery on average yard (owner mucks out/turns out at weekends), hay, bedding and feed inc: £450-550 pcm depending on niceness of yard
7 day livery on average yard (all jobs done but no exercising/schooling): £600-£700 pcm
Competition/schooling/'full' livery (7 day livery plus schooling/exercising, tack cleaning, bells and whistles/swanky yard): £1000pcm++ /the soul of your eldest child
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