The place in Chalton Street (Steam and Sun) was busted. A big court case in 2013 - it was taking about £70,000 a night. Always dozens of taxis parked up in Chalton Street at night - and not with cabbies in them. It was a cabbies' favourite, for years. There again, cabbies were always amongst the streetwalkers' best customers, around Paddington and Bayswater. It's so easy to kerb crawl when you're driving a black cab.
External Link/Members OnlyThere's still, what you're after, OP - a real English/EE sauna/massage place, in Judd Street. It really is an old-style place - shitty, dirty, rough birds and a rip off. A real clip joint.
Don't know about any Thai clip joint, OP. Do you mean a massage shop? There's never been a Thai massage shop in Eversholt Street. There is a Thai massage, in Chalton Street, but it will only do an excellent massage, no extras, and isn't a clip joint.
There are Chinese massage shops, in the area - probably half a dozen or more, within a 15 minute walk but FS won't be guaranteed. Organic Remedies, that's mentioned, is a Chinese massage shop and YMMV, as ever with the shops. It doesn't have a sauna - in fact, few of them do. None of them are clip joints.