Peninsula · San Mateo County
Estate Security for Atherton
Custom panic rooms, vault rooms, bunkers, and bulletproof installations for Atherton estates. Confidential, in-house engineering and fabrication. Serving the Peninsula since 1988.
Atherton consistently ranks as the most expensive ZIP code in the United States. Its residents — founders, investors, executives, and global family offices — own substantial property and personal assets, and they expect security infrastructure that matches the quality of every other system on their estates. Discretion is non-negotiable.
Global Bunkers US has been working on Peninsula estates since 1988. Our Atherton projects span fully concealed panic rooms in primary residences, walk-in vault rooms for art and jewelry collections, underground bunkers integrated into pool houses and accessory structures, bulletproof glass on guard pavilions and main entries, and bank-grade safes for home offices and family office facilities.
Why Atherton Estates Invest in Custom Security
- Atherton homes typically sit on one-acre-plus lots with extensive collections — art, wine, jewelry, watches, firearms — that warrant proper vault-grade storage on premises.
- Many residents have publicly disclosed wealth and ongoing media exposure, which can increase the threat profile for the family and household staff.
- Multi-generational family compounds frequently require coordinated security across the main residence, guest houses, garages, and accessory dwelling units.
- Estate-scale projects allow for ambitious installations — underground bunkers, multi-room vault complexes, full perimeter ballistic glass — that aren't practical on smaller properties.
Services Available in Atherton
Atherton projects are typically the most extensive installations we undertake. Estate-scale construction allows for purpose-built security spaces designed from the ground up, rather than retrofits into existing closets and basements. We commonly work alongside the estate's architect, general contractor, landscape architect, and security consultant to integrate our work seamlessly.
Vault Rooms
Atherton vault rooms are often the largest residential vaults we build — 200 to 500 square feet, with custom interior fit-out for art, wine, jewelry, and firearms collections. Frequently paired with reclaimed bank vault doors for both security and architectural impact.
Learn moreBunkers & Bomb Shelters
Atherton's one-acre-plus lots are well-suited to underground shelter projects. We've installed bunkers beneath tennis courts, pool decks, guest house foundations, and detached garages — fully off-grid capable with NBC air filtration and extended-duration provisioning.
Learn morePanic & Safe Rooms
Multi-room safe room suites are common — a primary panic room in the master suite, secondary safe rooms in children's wings, and a panic room within the staff quarters. All connected to a common alarm and communications backbone.
Learn moreBulletproof Glass
Whole-home ballistic glass packages at BR4–BR6 ratings, with custom framing systems that preserve the architectural character of the residence. Often combined with reinforced doors and access control.
Learn moreHigh-Security Safes
Available throughout the area.
Learn moreBank Vault Liquidation
Available throughout the area.
Learn moreAtherton Estate Considerations
Town of Atherton design review
Atherton's design review process is among the most demanding on the Peninsula. We coordinate with your architect and general contractor to handle the structural and security elements within the broader project envelope — many of our installations are entirely interior and require no design review at all.
Discretion and household staff
Most Atherton clients require strict confidentiality. We sign NDAs as a matter of course, manage crew access through a single point of contact, and coordinate with household staff so installations proceed without unnecessary visibility. Project addresses and details are never published.
Coordination with security consultants
Many Atherton estates work with private security firms or full-time household security staff. We integrate our physical infrastructure with the existing protocols — panic room communications tied into the estate's alarm system, vault access logs feeding into the security operations center, ballistic glass coordinated with the perimeter response plan.
Estate planning and resale
Properly built security infrastructure is increasingly recognized as a value-add at this price point, particularly for international buyers. We document every installation with as-built drawings and operating manuals that transfer to the next owner if the property changes hands.
Considering a project in Atherton?
If you're planning new construction, a major renovation, or a security upgrade on your Atherton estate, the first step is a confidential walkthrough with our principals. We'll listen to your concerns, assess the property, and outline a phased plan — entirely confidential and at no cost.
Request a Free Consultation