Where safety meets luxury and comfort in nuclear bunkers and fallout shelters.
We're not just building shelters - our range of designs redefines the concept of secure living by creating a luxury space which offers the ultimate protection and comfort for long-term survival duration.
Subterranean Spaces Global is a global specialist in nuclear bunker and fallout shelter construction, serving private families, critical infrastructure providers, corporations and government entities.
Our approach combines advanced technical expertise with exceptional attention to detail, creating underground spaces that prioritise safety, resilience and long-term habitability while preserving the interior quality, comfort and functionality expected of a high-end environment.
Our Zonal Approach
We take our "Zonal Approach" whereby depending on the level of NBC threat that you face, we recommend either a Zone A, B or C level of protection to ensure the occupants inside the space remain safe for varied durations. These range from a survival safe haven lasting 48 hours to 6 months of self contained living whereby all needs for human survival are integrated within your finished underground space. To determine this we conduct customised threat analyses based on your location and recommend a specific Nuclear, Biological and Chemical Survival Bunker specification to suit your needs. This analysis also considers predicted climate impact on the property such as future sea level rise and an increased likelihood of natural disasters.
End-to-End Solutions
Our mission goes beyond building simple shelters. We provide end-to-end solutions that integrate technical mastery with the purpose of the underground space. Whether you're a corporate or government entity in need of underground protection, or a private client looking for a personal underground safe space, we offer an all-round service. This ranges from initial planning support and custom design to construction and maintenance to provide you with the future of underground living.
Bespoke Designs
At Subterranean Spaces Global, every project is bespoke. We work closely with each client to design bunkers and underground spaces around their specific requirements, whether that means a family survival space for long-term self-contained living or a corporate facility designed to protect employees during emergency scenarios. Bespoke design is not an upgrade — it is part of our core offering. Every space is tailored from the outset to suit the client, the site and the intended purpose.
What to Expect Inside
Each Subterranean Spaces Global bunker is designed as a fully customisable protective underground environment, capable of serving a practical everyday function during non-threat periods while remaining ready for emergency use.
Layouts can be tailored to suit private, commercial or specialist requirements, including:
- Standard configurations: kitchen, recreational area, bedrooms and bathrooms.
- Luxury options: gyms, pools, cinemas, gaming simulators, security vaults and bespoke leisure spaces.
- Commercial options: workshops, offices, secure archives, corporate boardrooms, laboratories and protected operational areas.
- Decontamination Area: Each design can incorporate a dedicated decontamination area upon entry, supported by clean-air lobbies and controlled access points to help protect the integrity of the internal environment.
- Equipment Room: A dedicated plant and tank room houses the critical infrastructure required to support long-term underground occupancy, including air, water, power, waste and pressure-control systems.
- T Junction Access: Multiple T-junction access points comprising of main access areas and clean air lobbies and emergency access stepped ladders.
State-of-the-art life support infrastructure such as:
- Air: HVAC Filtration System connected to all rooms to ensure a constant, safe and clean fresh supply of air
- Water: Carbon Water Filtration system to ensure safe and clean water is provided for all internal needs (including internal Hydroponic sites)
- Power: Primary and Secondary (dual) Power Systems (with UPS and ATS) to ensure constant supply of electricity at all times including blackouts.
- Waste: Independent Waste system to safely destroy all internal physical waste and recycle waste air and water back into filtration systems for reuse.
- Conditions: Temperature regulation and overpressure systems to maintain a stable and controlled internal environment.
- Blast and Contaminant Protection: Airtight and blast-resistant doors and hatches positioned at vulnerable points to preserve the bunker's protective function.
What to Expect Outside
The external structure is designed to protect the bunker from environmental, structural and security risks while keeping the space discreet and private.
- Tiered Structural Layers: SSG-designed structural layers help prevent long-term cracking, corrosion, water ingress and external contamination, including alpha, beta and gamma fallout exposure.
- Structural Reinforcement: Heavy steel reinforcement can be incorporated for enhanced blast resistance, with hot-dip galvanisation treatment used where appropriate to improve durability and corrosion protection.
- Drainage: Each project can include a bespoke, self-sufficient drainage system and septic tank solution, designed around the specific ground conditions and requirements of the site.
- Access: Multiple entry and exit routes can be integrated to provide flexibility, redundancy and improved safety within the underground space.
- Hidden Entrances: Discreet entrance points can blend into the surrounding landscape, helping ensure your NBC Survival Bunker remains secure, private and unobtrusive.
Structural options - Modular Pods/In-situ Concrete
Depending on your project budget and time constraints, we offer two alternative structural solutions to base the design of your space around.
HDPE Modular Multi-Pod Design
Our high-quality, UK-manufactured cylindrical modular pods provide unmatched durability and safety for your nuclear, biological and chemical protected space.
Crafted from advanced twin-wall HDPE plastic, our cylindrical pods are lightweight, blast resistant, chemically inert, and water-resistant. Designed to handle heavy loads, they promise a remarkable 125-year lifespan while seamlessly integrating with the natural strength of the earth to provide the protection required.
As an alternative solution to in-situ concrete, our HDPE Modular Multi-Pod Design requires:
(1) less on-site construction time,
(2) less on-site construction labour and
(3) lower engineering design resources
which results in this option being a more budget friendly solution for all clients.
Although the cost is lower, we still promise to tailor your modular, interconnected system to the exact needs of the preferred function of the space. Whether it is an oak walled panelling interior, premium tiled bathrooms or temperature regulated storage, we offer a bespoke design, construction and installation option for all clients.
However, if you are still looking for a lower cost project, we also offer an off-the-shelf solution for competent DIYers, complete with technical guides, blueprints, and UK-based support.
In-Situ Structural Concrete
For a more traditional bunker design, we offer the flexible in-situ concrete option for those who are looking for a rectangular basement-style space for their nuclear, biological and chemical survival bunker.
Using specialist fibre-based reinforced concrete, this design base offers
(1) a rectangular structural design which provides all that is offered by the HDPE Modular Multi-Pod Design;
(2) a higher cubic area due to higher ceilings; and
(3) acts as a stronger property investment due to its permanent nature underground.
Although the in-situ option requires a slightly higher budget, it is designed and constructed in a way which is more traditional to Nuclear, Biological and Chemical Survival Bunkers and therefore offers a sense of protection that people have successfully relied upon for decades.
Preparing for the Unexpected: Requirements for a Safe Haven
In addition to structural safety, preparing for long-term survival is key. We’ll guide you in planning for essential supplies, from water storage and food supplies to protective gear and Hazmat suits. Our informative guides provide you with the tools and knowledge needed for surviving any disaster scenario.
Why Choose Subterranean Spaces Global?
With over 25 years of experience, Subterranean Spaces Global delivers advanced underground environments for private, commercial and specialist clients worldwide. Our expertise spans from luxury bunkers and asset security to protected spaces for commercial operations and multi-level facilities. We offer bespoke solutions tailored to your specific needs, backed by a legacy of technical excellence and innovative design.
Each project is tailored to the client's site, risk profile and long-term resilience goals, combining hardened structural engineering, specialist life-support systems, secure access, technical infrastructure and refined interior design.
We create discreet underground spaces built for safety, comfort and sustained performance. Whether you're dreaming of a single-level retreat or a four-level underground estate, Subterranean Spaces Global can bring your vision to life.
Ready to Build Your Subterranean Space?
Whether you have an idea or a vision to discuss, or a project you are ready to embark on, get in touch.
Quotations are priced based on country and location
SUBTERRANEAN SPACES GLOBAL
LONDON
The Foundry, 77 Fulham Palace Road, London W6 8JA. UK
Tel: +44 203 026 5088
NEW YORK
99 Wall Street 5568, New York, NY 10005. USA
Tel: +1 332 208 0066
LOS ANGELES
2355 Westwood Boulevard #1820 Los Angeles CA 90064-2109. USA
Tel: +1 213 329-3255
