Sustainability and Green Building at The Mukaab — LEED Gold, WELL Standard, and Net Zero Goals

Sustainability and Green Building: The Mukaab’s Environmental Credentials

New Murabba aims to achieve operational net zero by 2060, aligned with Saudi Arabia’s national commitment under the Saudi Green Initiative announced in 2021. This target, applied across a 19-square-kilometer district housing 280,000 or more residents, represents one of the most ambitious urban sustainability commitments globally. The pathway to net zero encompasses renewable energy integration, closed-loop water management, zero-landfill waste strategies, passive architectural design, smart building systems that continuously optimize resource consumption, and green space integration that rivals the world’s most ambitious park developments. For prospective residential buyers and investors, understanding these sustainability credentials is essential because green building certifications directly affect property values, operating costs, and long-term asset resilience.

The Net Zero Target: What It Means and How It Will Be Achieved

Operational net zero by 2060 means that by that date, the total energy consumed by New Murabba’s operations — heating, cooling, lighting, transportation, waste processing, water management, and all building services — would be offset by renewable energy generated within or procured for the development. This does not mean zero energy consumption; it means that energy consumption is matched by clean energy generation, resulting in zero net carbon emissions from operations.

Saudi Arabia committed to reaching net zero emissions by 2060 at COP26 in Glasgow in 2021, and New Murabba’s timeline aligns with this national commitment. However, achieving net zero in a desert city development housing hundreds of thousands of people presents unique challenges. Riyadh’s climate demands intensive cooling for eight or more months per year, with summer temperatures regularly exceeding 45 degrees Celsius. Cooling typically accounts for 50 to 70 percent of energy consumption in Riyadh buildings, making it the single largest energy challenge that any net zero strategy must address.

The net zero pathway for New Murabba combines multiple strategies: reducing energy demand through passive design and efficient systems, generating renewable energy on-site, procuring additional clean energy from grid-scale renewable projects, optimizing building operations through AI-driven management, and offsetting residual emissions through verified carbon reduction programs. Each of these components is examined in detail below.

Renewable Energy: Solar Power in the Desert

Saudi Arabia receives among the highest levels of solar irradiation on earth — approximately 2,000 to 2,200 kilowatt-hours per square meter annually across most of the country. This extraordinary solar resource makes photovoltaic energy generation one of the most economically viable renewable options for any Saudi development, and New Murabba’s 19-square-kilometer footprint provides substantial area for solar panel installation.

Extensive solar power installations across the district would occupy rooftops, parking canopies, infrastructure surfaces, and potentially dedicated solar fields within the green spaces. The Mukaab’s own roof — a 160,000-square-meter surface (400m x 400m) at the top of the cube — represents one of the largest potential building-integrated solar installations in the world. Even accounting for structural requirements, equipment zones, and the planned rooftop garden, significant portions of this surface could host photovoltaic panels generating clean electricity at the building’s peak consumption point.

Advanced energy storage systems — large-scale battery installations — address the intermittency challenge inherent in solar power. Saudi Arabia receives abundant sunlight during daytime hours but none at night, when residential electricity demand for lighting and entertainment remains significant. Energy storage systems charged during peak solar production and discharged during evening and nighttime hours smooth the renewable energy supply curve, reducing grid dependence and enabling higher percentages of energy consumption to be met by on-site renewable generation.

The economics of solar power in Saudi Arabia have improved dramatically in recent years. The Kingdom’s National Renewable Energy Program has delivered some of the world’s lowest solar electricity tariffs, with utility-scale projects achieving costs below $0.02 per kilowatt-hour. While on-site building-integrated solar installations are more expensive than utility-scale projects, the cost trajectory supports the economic viability of extensive solar integration at New Murabba.

Passive Design: The Exterior Screen as Climate Response

The Najdi-inspired exterior screen of The Mukaab serves a critical sustainability function beyond its aesthetic role. The overlapping triangular elements create a shading system that significantly reduces direct solar radiation reaching the building’s interior glazing. This passive shading reduces the cooling energy demand that represents the largest single energy consumption category in Riyadh buildings.

The shading effectiveness of the screen varies with sun angle and orientation. South- and west-facing facades receive the most intense solar radiation and benefit most from the screen’s shading geometry. East-facing facades receive morning sun at lower angles. North-facing facades receive relatively little direct radiation. The screen design would be optimized for each orientation, potentially with different panel angles or densities on different facades, to maximize shading where it provides the greatest energy benefit.

Beyond the exterior screen, passive design strategies throughout New Murabba include building orientation optimized for minimal solar exposure, reflective and light-colored roofing materials that reduce heat absorption, thermal mass in structural elements that moderates temperature swings, natural ventilation potential during cooler months, and landscape shading from the district’s extensive tree planting. These passive measures reduce energy demand before active systems (air conditioning, lighting) are engaged, lowering both energy costs and carbon emissions.

Water Management: A Closed Loop in the Desert

Water management in Riyadh carries both environmental and strategic significance. Saudi Arabia has no permanent rivers or lakes, and its groundwater resources are being depleted. Riyadh relies on desalinated seawater pumped from the Persian Gulf coast — an energy-intensive process that adds a water-energy nexus to the sustainability challenge. Every liter of water saved at New Murabba reduces not only water consumption but also the energy required to desalinate and pump water to the capital.

The closed water loop system at New Murabba aims to maximize water recycling and minimize fresh water consumption through several integrated strategies:

Greywater Recycling: Water from sinks, showers, and laundry (greywater) is collected, treated, and reused for non-potable applications including toilet flushing, irrigation, and cooling tower makeup water. Advanced treatment systems using membrane bioreactors and UV disinfection produce recycled water quality suitable for these applications, reducing fresh water demand by an estimated 30 to 40 percent compared to conventional buildings.

Low-Flow Fixtures: All residential units are fitted with water-efficient fixtures — low-flow showerheads, dual-flush toilets, aerator faucets, and water-efficient appliances. These fixtures, specified as part of the interior design standards, reduce water consumption per capita without compromising the luxury experience that premium residential buyers expect.

Drought-Resistant Landscaping: The district’s green spaces — comprising 25 percent of the New Murabba area — are landscaped with native and drought-adapted species that require minimal irrigation once established. Smart irrigation systems using soil moisture sensors, weather data, and evapotranspiration models deliver water to plants only when needed, eliminating the over-irrigation common in conventional landscape maintenance.

Stormwater Capture: While Riyadh receives limited rainfall (averaging approximately 100mm annually), intense storms can deliver significant volumes in short periods. Stormwater capture systems collect and store this water for landscape irrigation and non-potable uses, supplementing the recycled greywater supply.

Waste Management: Zero Landfill Through Innovation

The zero-landfill waste strategy addresses both construction-phase and operational-phase waste streams:

Construction Waste: The repurposing of 40 million cubic meters of excavated material within the site — using excavated earth for grading, landscape formation, and infrastructure foundations — demonstrates the zero-landfill principle during construction. Additional construction waste streams (concrete, steel, timber, packaging) are targeted for recycling through on-site and off-site processing facilities.

Operational Waste: The pneumatic waste collection system automates waste transport from residential units to central processing facilities, where automated systems sort waste into recyclable, compostable, and residual streams. The recycling infrastructure targets recovery rates of 70 percent or higher, with organic waste composted for use in the district’s landscaping and residual waste processed through waste-to-energy technologies that extract energy value from materials that cannot be recycled.

Smart Waste Monitoring: IoT sensors in waste collection points monitor fill levels, waste composition, and contamination rates, allowing the building’s management systems to optimize collection schedules, identify opportunities to improve recycling rates, and track waste reduction progress toward the zero-landfill target.

Green Spaces: Three Times Central Park

The green space provision at New Murabba — 25 percent of the 19-square-kilometer development area, or approximately 4.75 square kilometers — represents three times the green space of New York’s Central Park (3.41 square kilometers). This comparison provides scale context, but the green space strategy at New Murabba goes beyond simple area provision to incorporate biodiversity, wellness, and environmental performance objectives.

The green spaces encompass parks, gardens, nature reserves, green corridors connecting neighborhoods, urban forests, and the 11-kilometer vehicle-free pedestrian and cycling route that threads through the development. These spaces are designed not merely as aesthetic amenities but as functional components of the district’s environmental systems: trees provide shade and evaporative cooling that reduces urban heat island effects, vegetation filters particulate matter from the air, root systems manage stormwater, and the biological activity within green spaces supports local biodiversity.

Certification Targets: Independent Verification

Based on the sustainability ambitions described in project communications and the involvement of AECOM and Jacobs as lead design consultants, The Mukaab and New Murabba are positioned to pursue three independent green building certifications:

LEED Gold (Leadership in Energy and Environmental Design): Administered by the U.S. Green Building Council, LEED is the world’s most widely recognized green building certification system. LEED Gold certification (the second-highest level) requires achieving at least 60 points out of 110 across categories including sustainable sites, water efficiency, energy and atmosphere, materials and resources, indoor environmental quality, and innovation. The development’s solar energy integration, water recycling systems, green space provision, and smart building technology would contribute significantly toward LEED Gold scoring.

Estidama: Developed by the Abu Dhabi Urban Planning Council, Estidama is the Gulf region’s primary green building rating system, designed specifically for the hot, arid climate conditions shared by Abu Dhabi and Riyadh. The system evaluates environmental, economic, social, and cultural sustainability through its Pearl Rating System, and its climate-specific criteria make it particularly relevant for validating The Mukaab’s sustainability in its actual operating environment.

WELL Building Standard: Administered by the International WELL Building Institute, WELL focuses specifically on occupant health and wellbeing rather than environmental sustainability. WELL certification evaluates air quality, water quality, nourishment, light, fitness, comfort, and mind — criteria that align directly with the residential wellness proposition that Mukaab living offers. Achieving WELL certification provides evidence-based validation that the building’s indoor environment supports occupant health.

The Value of Sustainability: Pricing and Investment Implications

Green building certifications have documented price premium effects in global luxury real estate markets. Studies by CBRE, JLL, and Knight Frank have found that LEED-certified and WELL-certified buildings command rental premiums of 5 to 15 percent and sales premiums of 10 to 30 percent over comparable non-certified buildings, depending on market and certification level. In the Gulf region, where sustainability awareness among affluent buyers is growing rapidly, green building credentials increasingly influence purchase decisions.

For New Murabba, sustainability credentials serve multiple commercial purposes: they differentiate the development from competing luxury residential offerings in Riyadh, they support premium pricing by providing third-party validation of building quality, they reduce operating costs through energy and water efficiency, and they protect long-term asset value by ensuring that the buildings meet evolving regulatory standards and buyer expectations. ### The Urban Heat Island Effect: District-Level Climate Management

New Murabba’s sustainability strategy addresses the urban heat island effect — the phenomenon where developed areas experience significantly higher temperatures than surrounding undeveloped land due to heat absorption by buildings, roads, and impervious surfaces. In Riyadh, where summer temperatures already exceed 45 degrees Celsius, the urban heat island effect can add 3 to 5 degrees to localized temperatures, increasing cooling energy demand and reducing outdoor comfort.

New Murabba’s mitigation strategies include the 25 percent green space provision (vegetation provides evaporative cooling and shade), the use of high-albedo (reflective) materials on roofs and pavements (reducing heat absorption), the 11-kilometer vehicle-free pedestrian and cycling route (reducing vehicle heat emissions in the pedestrian zone), and the integration of water features throughout the district’s public realm (providing evaporative cooling). The combination of these measures is designed to create a microclimate within New Murabba that is measurably cooler than surrounding urban areas — enhancing outdoor comfort for residents and reducing the cooling energy demand that drives the building’s operational carbon footprint.

For the interior design incorporating sustainable materials, see our interior standards coverage. For the investment value implications of sustainability credentials, see our Investment section. For the lifestyle benefits of sustainable building design, see our wellness analysis.