Release Me: Frontgate Real Estate Closes Engelbert Humperdinck’s Bel-Air House for... At 86, English pop singer Engelbert Humperdinck started the process of selling his ho[...] October 12, 2022 / Nina Phillips / Tags: Bel-Air, Beverly Hills, California, California real estate, Coldwell Banker Realty, Engelbert Humperdinck, Frontgate real estate, guest house, gym, Haute Residence, Kitchen, Los Angeles, luxury bel-air real estate, Pool