Non-Profit Organization since 2023
501 (c) (3)
Pro Nature City
Pro Nature City helps people who want to prevent ecosystem disruptions, protect lives from natural disasters, and increase energy efficiency by integrating the proprietary PLEM approach into construction and urban development.
Saving Planet, Lives, Energy and More
What is PLEM
PLEM™ stands for saving the Planet, Lives, Energy, and More.
The Pro Nature City™ vision can be achieved through a simple yet transformative approach called PLEM™.
Innovating Beyond Traditional Construction:
To construct buildings that can be seamlessly integrated with soil and vegetation, we must step beyond conventional methods and embrace innovative, out-of-the-box thinking.
Traditional construction build on a concrete foundations. PLEM™ utilizes a reinforced low-footprint concrete foundation that extends seamlessly into the exterior walls and roof, forming a single, unified concrete shell.
Once completed, this reinforced concrete shell, excluding openings for windows and doors, is covered with natural elements such as soil and vegetation that match the original environment. This unique design enables the structure to blend harmoniously with nature, enhancing sustainability while maintaining structural integrity and flexibility.
Nature-covered buildings have often been designed for aesthetics rather than nature preservation, making them costly and exclusive. Pro Nature City seeks to transform urban housing by making nature integration a practical, essential standard rather than a luxury.
While it is widely recognized that conventional concrete carries a relatively high embodied CO₂ footprint, its environmental impact changes significantly when applied within the PLEM™ approach. In this system, concrete structural elements are covered with soil and native vegetation on exterior walls and roofs. The integrated soil–vegetation layers enable sustained photosynthesis, resulting in continuous oxygen production and biological carbon uptake over the life of the structure. Over time, this process can substantially offset—and in some cases compensate for—the initial embodied carbon of the concrete, while simultaneously enhancing thermal performance, structural resilience, and long-term ecosystem stability.
The core principles of PLEM™ are as follows:
1. Monolithic Reinforced Concrete Shell
The first essential characteristic is that every structure must be enclosed within a monolithic reinforced concrete shell. This shell can be constructed using traditional methods or innovative technologies, such as 3D printing, as long as the outcome meets the required standards (e.g., Fox Blocks, SIPs Kit Homes, or 3D concrete pouring). The reinforced low-footprint concrete shell will align with the chosen layout, floor plan, and design of the structure it encloses, providing flexibility in architectural planning.
2. Non-Flammable Materials Beyond the Shell
No wood or other combustible materials are permitted beyond the reinforced concrete shell. All exterior elements, such as window frames, doors, and garage doors, must be made of fire-resistant materials, such as metal or other non-flammable alternatives.
3. Optimal Window Orientation for Sunlight
The placement and orientation of windows should align with seasonal sun patterns to optimize energy efficiency and indoor comfort. As per Griffith Observatory, “The tilt of Earth’s axis determines where the sun appears in the sky throughout the year. During summer in the northern hemisphere, the sun rises north of east and sets north of west.
It is high in the sky at noon. During winter in the northern hemisphere, sunrise and sunset appear farther south along the horizon.” :
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South-Facing Windows: Installing large windows on the south side to let in sunlight during winter for warmth while keeping the interior cool in summer.
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East & West-Facing Windows: Using these windows sparingly. Plant deciduous trees nearby to provide shade in summer and allow sunlight in winter.
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North-Facing Windows: Avoid them when possible, as they lack winter sunlight, making the home colder in winter and warmer in summer, both of which are uncomfortable.
PLEM Essentials
PLEM™ Benefits
The PLEM™ approach offers transformative benefits, aligning with the Pro Nature City™ primary mission of saving Planet, Lives, Energy and More.
Saving Planet
By adopting the PLEM™ approach, we can integrate natural elements into our buildings, replacing the vegetation removed during construction. From above, these structures blend seamlessly into their surroundings, appearing as part of nature itself. The reinforced concrete shell of PLEM™ structures supports this integration, offering strength and insulation while allowing us to restore both nature and city structures.
Roofs covered with soil and vegetation provide important environmental and urban resilience benefits. One key advantage is stormwater retention. The soil and plant layers absorb and temporarily store rainwater, slowing runoff and reducing the volume of water entering drainage systems during storms. This helps decrease the risk of urban flooding, reduces pressure on municipal stormwater infrastructure, and allows some of the water to gradually evaporate or be used by plants through natural processes. In addition to water retention, green roofs can help moderate roof surface temperatures, improve building insulation, support urban biodiversity, and contribute to improved urban microclimates. When implemented at scale across cities, green rooftops can play a meaningful role in sustainable stormwater management and climate-adaptive urban design.
Saving Lives & Structures
PLEM saves lives in two different categories: caused by natural disasters and ecosystem disruptions.
A- Natural disasters:
1. Earthquake Resistance
Conventional buildings are typically constructed with multiple connected components, such as wood framing attached to a foundation through numerous joints. During an earthquake, these individual parts can move independently, creating stress at connection points. This often leads to joint failure and, in severe cases, structural collapse.
The PLEM™ approach introduces a fundamentally different solution: a monolithic reinforced solid shell that forms the foundation, exterior walls, and roof as one continuous structure. Interior walls and structural elements are securely attached to this unified shell, allowing the entire building to behave as a single integrated system.
During seismic events, instead of components moving separately, the structure moves together as one cohesive unit, significantly reducing stress on joints and minimizing the risk of failure. This principle is similar to how a vehicle moves during an earthquake: it responds to motion but remains intact because it functions as one unified body.
For multi-story buildings, in addition to the above mentioned monolithic design, recessing each floor can further enhance stability while maintaining the integrity of the monolithic system.
*Patent pending. This innovation will be made freely available to the public, professionals, researchers, and examiners to support global resilience
2. Wildfire Resistance
The concrete shell, combined with metal-framed windows, doors, and garage doors, creates a fireproof exterior, ensuring the safety of residents and interiors. By eliminating flammable materials beyond the shell, PLEM™ homes minimize the risk of fire spreading inside during wildfire events.
The soil provides exceptional thermal insulation. When a house is built using the PLEM™ approach, the indoor temperature remains remarkably stable, even if fire reaches the vegetation on the roof, thanks to the insulating properties of the soil layer. The scientific results below demonstrate how this principle works.
3. Resistance to Strong Storms and TornadoesTornadoes and storms frequently cause severe roof damage. The unified reinforced concrete shell of PLEM™ homes resists these forces, providing complete protection. For added security, retractable metal sheets can be installed to cover windows and door openings during such events.
B- Ecosystem disruptions
Healthy ecosystems play a critical role in supporting public health. Through PLEM, biodiversity helps maintain balanced species interactions, while ecosystem degradation can disrupt these natural controls and increase the risk of disease transmission.
Scientific research has shown that environmental disruption, habitat loss, and climate change can contribute to the expanded range and prevalence of infectious and vector-borne diseases. Changes in land use, and ecological balance influence how pathogens, hosts, and vectors interact, potentially affecting human exposure. Protecting and restoring ecosystems therefore contributes not only to environmental resilience, but also to long-term public health stability.
Saving Energy
1. Superior Insulation
The combination of concrete walls, roof, and a soil-and-vegetation cover provides excellent thermal insulation. This natural layer maintains consistent indoor temperatures, leveraging the stable temperature characteristics of the Earth.
2. Strategic Window Placement
PLEM™ homes harness these sun patterns to warm interiors in winter and minimize heat gain in summer.
Saving More
1. Lower Energy Bills
Eliminating or reducing the need for heating and cooling systems due to superior insulation and strategic window placement.
2. Reduced Insurance Costs
Enhanced protection from natural disasters like earthquakes, wildfires, and tornadoes leads to lower insurance premiums.
3. Maintenance-Free Exteriors
The concrete shell eliminates the need for exterior wall repairs, repainting, and insulation upkeep.
4. Roof and Gutter Savings
Roof maintenance, gutter cleaning, and replacements are eliminated.
5. Pest Protection
The secure concrete structure reduces the need for pest control services.
6. Minimal Landscaping Costs
Choosing natural, native vegetation for coverage can help reduce landscaping expenses.