Dating app tycoon selling £30m 'Batcave' mansion with transforming pool

In the quiet hills of Hampstead, a fortune built on human longing — the desire to connect — has been poured into stone, steel, and shadow. Sergey Frolovichev, who helped build two of the world's largest dating platforms, spent five years and £15 million reimagining a 1934 Georgian mansion as a private mythology, complete with a hidden underground lair inspired by a fictional vigilante. Now, drawn toward a simpler life in Italy, he offers the unfinished dream to whoever can afford to inherit it — a reminder that even the grandest personal visions are, in the end, transferable.