It always amazes me how much value my clients place on a beautifully finished basement so I thought this article and interesting read….us “Jerseyites” are not alone in that admiration factor.

This $100,000-per-month townhouse in New York includes an underground pool with portals. Photo: Donna Dotan Photography Inc.

At first glance, the $12.5 million Boulder Beach Estate doesn’t stand out from its neighbors in the tony Long Island community of Sands Point. The luxe waterfront Colonial boasts upscale amenities that are commonplace in one of the country’s most expensive ZIP codes: a decadent kitchen, an in-ground pool and a dock. But a trip down the stairs from the first floor reveals an unexpected feature: a putting and chipping green. Yes, golf enthusiasts, an indoor underground area where you can practice your swing when it’s raining outside.

“This was built for the owners’ sons so they could play all the time and it has been a huge feature,” explains Maggie Keats, a Prudential Douglas Elliman broker who is marketing the home for sale. She says it’s the first underground putting green she has encountered in a single-family residence, but other subterranean amenities have been cropping up in for-sale homes in Long Island’s North Shore neighborhoods: “I am seeing a lot of sports courts, like basketball courts, underground as well as movie theaters and bowling alleys.”

Boulder Beach is one of the homes we dug up that boast outrageous subterranean amenities. Here are some more:

Missile Silo Home 127 Standish Road, Saranac, NY Location: Saranac, NY Price: $750,000

This converted missile silo offers the ultimate safe room. Photo: Courtesy of

Below the log cabin of this Adirondack Mountain compound is a revamped Cold War-era Atlas-F Missile silo that extends 10 stories underground, with a finished kitchen, two en suite bedrooms and a media room — all encased in concrete and steel mesh that’s said to be nuclear-attack proof.

Chateau Suenos Location: Calabasas, CA Price: $5.85 million

Britney Spears used to go underground in this home. Photos: Premiere Estates Auction Company

The recently sold villa that pop princess Britney Spears used to rent counts among its paparazzi-proof amenities a subterranean garage equipped with two hydraulic car lifts.

214 Lafayette Street Location: New York, NY Rent price: $100,000 per month

The underground New York pool comes at a steep price. Photo: Donna Dotan Photography Inc.

Manhattan’s second-most expensive rental on the market is a five-story townhouse with an indoor swimming pool peddling viewing portals that look out onto a finished basement.

Hidden Estate Location: East Bethel, MN Price: $1.6 million

For your inner Batman: a bookcase reveals a safe room. Photo: Courtesy of Coldwell Banker Burnet

This lakefront manse touts a huge “man cave” with heated floors. A bookcase in the back of the man cave slides sideways to reveal this safe room secretly tucked away. “From looking at them there is no way to know that they move and slide to the corner,” says Christine Valerius of Coldwell Banker Burnet-Wayzata of the bookcases. “The owner put them in more as a safe room, but a potential buyer could also look at that space as a possible wine cellar.”

Boulder Beach Location: Sands Point, NY Price: $12.5 million

Rain or shine, you can golf under this home. Photo: Courtesy of Prudential Douglas Elliman

This oceanfront Colonial has a staircase that leads down to an underground basement that has been converted to an indoor putting and chipping green.