Malibu 'Muscle Mansion' Built to Last 1,000 Years Lists for $35M

Concrete compound designed to withstand disaster attracts interest of California's uber-rich

Jan. 30, 2026 at 2:31pm

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A Malibu mega-mansion named Simka, crafted with 7,300 cubic yards of super-reinforced concrete, is deliberately designed to withstand California's notorious hazards including wildfires, earthquakes, tsunamis, mudslides, and coastal erosion. The 30,000 square-foot fortress, built by self-taught architect Kris Halliday without a team of designers, is hitting the market for $35 million.

Why it matters

With longevity now a major status symbol among the ultra-wealthy, this concrete compound takes the bunker mentality to new, luxurious heights, highlighting a growing trend of disaster-proof homes catering to California's elite.

The details

Halliday set out to design and build Simka without a team of architects or designers, calling it the 'culmination of my life's work.' The project began in 2020 and was completed late last year after five years of 'a technical, logistical, structural battle' to construct the home on a one-acre lot with unforgiving soil conditions. The home features 10 bedrooms, 20 bathrooms, a 25-car garage, a 176-foot multi-level pool with an underwater viewing window, a professional-grade kitchen, a private Japanese tea room, and a 235-inch Dolby Atmos theater.

  • The project began in 2020.
  • The home was completed late last year.

The players

Kris Halliday

A self-taught architect who undertook the project without a crew of designers or architects. He grew up in the Australian outback, building homes alongside his father, and eventually started his own business renovating, designing, and building properties internationally.

Jamie Halliday

Kris Halliday's wife, who handled the administrative and financial side of the Simka project.

Jade Mills

A real estate agent with Coldwell Banker Realty who is listing the Simka property.

Zach Quittman

A real estate agent with Coldwell Banker Realty who is listing the Simka property.

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What they’re saying

“Most homes are built with a 50-year mindset. Simka was built with a 1,000-year philosophy.”

— Kris Halliday, Architect

“He could have done this in a more inexpensive way, but his belief system in creating something that was sustainable and protective and unique was so strong.”

— Jamie Halliday, Kris Halliday's Wife

“We feel that this is a very, very good price for what you're getting. There's nothing like it on the market that's 30,000 square feet, that's natural disaster proof, and has the privacy and the scale.”

— Zach Quittman, Real Estate Agent

What’s next

The judge in the case will decide on Tuesday whether or not to allow Walker Reed Quinn out on bail.

The takeaway

This case highlights growing concerns in the community about repeat offenders released on bail, raising questions about bail reform, public safety on SF streets, and if any special laws to govern autonomous vehicles in residential and commercial areas.