Groundbreaking green infrastructure products for Landscape Architects, Arboriculturists, Urban Foresters, Urban Planners, Developers, Engineers, and Local Government Authorities

The Best Sustainable Solution for Transforming Grey Cities to Green

Revitalise cities with healthy, tree canopies while maintaining infrastructure integrity in any urban space.

Citygreen Stratavault™ revolutionises tree planting projects in city environments by maximising the soil volume available for tree roots, while also providing a stable base for roads, pavement and other installations.

With modules assembled in the form of a robust, interconnected matrix, Citygreen Stratavault™ offers easy installation and the flexibility to enable city trees to thrive even in difficult environments, producing environmental, economic and health benefits for all stakeholders.

Got an Upcoming Project?

The World’s Most Superior Soil Cell

Citygreen Stratavault™ is the most sustainable, highly engineered large soil cell designed to install easily under sidewalks and parking lots, enabling trees to accept, store and transmit water, nutrients and energy, while giving roots sufficient room to propagate.

Its unique matrix design and high-strength modules can also withstand significant vehicular loads and traffic, preventing sidewalks, roads and buildings from getting damaged by long-term root growth.

The innovative nesting design of Citygreen Stratavault™ is designed to reduce freight and implementation costs. Its apertures are even large enough to incorporate some common conduits, service pipes and aeration systems within the structure.

Citygreen Stratavault™ is made from recycled and reused plastics yet offers the highest durability rating, offering a practical structural soil cell that also promotes sustainability.

stratavault icon 1 stratavault Citygreen

Quick Assembly

The units of Citygreen Stratavault™ snap together easily. You don’t need zip ties, screws or ground spikes to fasten them together, reducing installation challenges.

stratavault icon 2 stratavault Citygreen

Engineered Strength

Due its positive lateral and vertical connectors, an assembled Citygreen Stratavault™ matrix is considered the ultimate load bearing “root cell” structure.

stratavault icon 3 stratavault Citygreen

Quality Control

Stratavault™ modules are crush tested during manufacture as part of the rigorous quality control standards required by Citygreen.

stratavault icon 4 stratavault Citygreen

Reduced Energy Use

Virgin plastics have an unacceptably high level of embodied energy, which is why we don’t use new or single-use plastics for the production of Stratavault™.

website smart certify 1 stratavault Citygreen

Developed to make the installation phases of projects easier and faster.

The SmartCertify hold point platform was developed to streamline the compliance element of Citygreen’s soil cell projects, through customization of advanced cloud smart technology. Enabling the installation team to watch videos for further understanding and snap progress photos using their smartphone or tablet, at set hold points throughout construction, to be uploaded in real-time to the cloud. Allowing Citygreen’s technical team, as well as other project partners, real-time updates on installation progress.

Product Specification

ProductDescriptionHeight per layerMaterialUltimate Load Capacity
Stratavault 30High strength structural vault system400mm/16″ nom100% recycled PP 300kpa/43.5psi
Stratavault 45Ultra high strength structural vault system400mm/16″ nom100% recycled ABS 450kpa/65.2psi

*Note: Product dimensions may change without notice. Please confirm with Citygreen at time of order placement. Download Technical Sheet Download Inspection, Maintenance & Repair Manual Access our Platinum Area for CAD library, construction details and product videos

Download technical specifications and more details about Stratavault™ – a sustainable, next-generation soil cell with world-wide proven results.

"*" indicates required fields

First Name*
Last Name*
Monthly Updates

The Stakeholders We Support

We help Urban Foresters & Arborists

By using Citygreen Stratavault™, you can create tree canopies 3x faster, addressing climate change through the healthy growth of urban trees.

We help Landscape Architects & Urban Planners

Stratavault™ can aid you in developing beautiful, greener spaces to make cities more liveable, healthier and sustainable than ever.

We help Civil Engineers

Citygreen StratavaultTM can help you find the perfect balance between the need for healthy, city trees and the requirements for preserving vehicle roads and pedestrian pavements.

The Benefits We Offer

  • 30+ years of relevant project experience
  • Global expertise from a proactive local team
  • Sustainability driven and innovative tree planting solutions
  • Real time updates for construction progress
  • Expert technical coordination and project management
  • Locally made products
  • 20+ year warranties over all installed Citygreen systems

Case Studies

case study thumb 3 stratavault Citygreen

Soil Vaults Return Huge ROI in Quantifiable Results

case study thumb 4 stratavault Citygreen

Award-winning Green Square Library and Plaza fuses built form and landscape

Read More
case study thumb 2 stratavault Citygreen

Constitution Avenue transformed into Canberra’s premier address

Read More

case study thumb 1 stratavault Citygreen

Innovative soil trench with water harvesting, for healthy trees in upgraded Macquarie Mall – using Stratavault

Read More

Enquire Online

Citygreen StratavaultTM ensures the success of urban tree growth. As a structural load bearing soil system, it enables tree roots to propagate without causing damage to the surfaces above. With Citygreen StratavaultTM, you can revive the beauty of cities with thriving tree canopies.

For more information simply fill out the form below and our team will contact you shortly.

Request a Quote – Stratavault

Areas of Interest(Required)
Please give a quick overview of your upcoming project.
This field is for validation purposes and should be left unchanged.

About Citygreen

For years, Citygreen has invested in comprehensive research and development to explore the challenges, the causes of failure and the reasons for the premature mortality of urban trees in city environments.

Read More

Today, our urban landscape products and services are considered the top benchmark in their corresponding fields – being endorsed by professional organisations around the world and placing Citygreen at the cutting edge of sustainable landscape solutions for cities globally.

Citygreen actively contributes to a world where sustainable green spaces are within reach of every person, every day.

“Great customer service, quick response times and a very in depth QA system with constant support.”

- Laura Wiesenekker, Project Engineer, Densford Civil -

“Citygreen is a very professional  business, and I found everything was great in terms of deliveries, product supply and information. It was all forthcoming and helped us to complete the project.”

- Keith Burns, Architect/Designer, Keith Burns Architect -

“Citygreen offered training and invaluable technical assistance during the works.”

- James Callan, Estimating Manager, Complex Co Pty Ltd -

“Our experience, in working with a Citygreen Design Studio was second to none. We found responses from the design studio to be very timely, and technically thorough. We went backwards and forwards a number of times, looking at different iterations of the design and, nothing was too much trouble to examine and explore different possibilities. I would highly recommend the Citygreen Design Studio to any future client considering using your services.”

- Sandra Smith, Principal Landscape Architect, City Of Monash -

“We are big on compliance on all projects, and the fact that their SmartCertify cloud platform covers all bases, and supports their 20 year warranties, is critical – especially that these pits are being installed under roadways and footpaths.”

- Johny Purkaystha, Civil Program Engineer, Central Coast Council -

"I reviewed all the previous projects that we have installed in the past couple years using your product and I can happily report back that we have 0% mortality in the soil cells, which is incredible!"

- Brendan Wilton, CEO, Trim Landscaping, Bedford, Canada -