There is certainly an approx £10k premium on an E17 postcode north of the LBR, for essentially the same building. Further north in Walthamstow near Lloyd park the premium is probably closer to £30k. Kirsty and Phil LLL innit.
I’m in a Warner on Perth Road E10 and if you don’t mind living next to a massive building site for the next few years, there’s one at the far end of my road that’s been just put up for sale again (no doubt the sale fell through due to the prospective buyer discovering the building works due to begin imminently on the old gasworks adjacent). https://www.zoopla.co.uk/for-sale/details/53537603/?search_identifier=c49f7d296938b978d0b131d4d5dd4d81
You’re welcome to pop round for a cuppa and chat about all things Warner/bikes if you like. I get a bit grumpy sometimes due to the upstairs flat having solid wood floors, but they’re not that bad I guess overall. I just think they’re overpriced for what they are, and people like Stow Brothers make a mint bigging them up to entice the Hackney folk relocating.