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The Net-to-Gross Equation: Architectural Space Efficiency and Energy Performance in High-Rise Towers - Softcover
Synopsis
Every high-rise carries a hidden number few developers ever ask about: how much of its floor area actually does anything — and what the rest is quietly costing in energy, every single year, for the life of the building.
Backed by a dataset of 34 buildings, 20 expert interviews, and eight projects tracked across five design stages, this book proves what practitioners have long suspected but never measured: spatial efficiency isn't a leasing metric with a side effect on sustainability — it's one of the most powerful, controllable levers on a building's lifetime energy performance. In hot arid, high-density markets specifically, each percentage point of Net-to-Gross ratio lost is associated with a 10.43 kWh/m²/year increase in energy intensity — 46% steeper than the equivalent effect in temperate-climate buildings (R² = 0.887).
The book doesn't stop at the finding. It delivers the ASEF-S framework — a regionally calibrated, three-dimensional assessment tool with an Energy Consequence Calculator that lets architects and developers see the energy cost of a spatial decision at concept stage, before it's locked in for forty years.
Written for architects defending design decisions in review, developers underwriting feasibility, sustainability consultants bridging regional and international certification systems, and researchers extending the methodology — this is the first book to put a number on what inefficient space actually costs, and a tool to close the gap while it's still cheap to change.
"synopsis" may belong to another edition of this title.
About the Author
Dr. Eng. Ibrahim Saad (Saad da Alex) is an architect, researcher, and design leader with over three decades of international experience in architecture and urban design. He specializes in high-rise buildings, space efficiency, and sustainable design strategies.His work integrates analytical research with practical design solutions to deliver high-performance, human-centered environments.He has led multidisciplinary teams across the Middle East, Africa, and Asia on projects ranging from large-scale mixed-use developments to institutional and commercial towers. His expertise spans concept development, design optimization, performance analysis, and the integration of sustainability principles into every stage of design.Dr. Saad is dedicated to bridging the gap between research and practice. His mission is to provide the architectural community with evidence-based knowledge and practical tools that create value, improve building performance, and shape more sustainable cities.
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The Net-to-Gross Equation (Paperback)
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Paperback. Condition: new. Paperback. Every high-rise carries a hidden number few developers ever ask about: how much of its floor area actually does anything - and what the rest is quietly costing in energy, every single year, for the life of the building.Backed by a dataset of 34 buildings, 20 expert interviews, and eight projects tracked across five design stages, this book proves what practitioners have long suspected but never measured: spatial efficiency isn't a leasing metric with a side effect on sustainability - it's one of the most powerful, controllable levers on a building's lifetime energy performance. In hot arid, high-density markets specifically, each percentage point of Net-to-Gross ratio lost is associated with a 10.43 kWh/m2/year increase in energy intensity - 46% steeper than the equivalent effect in temperate-climate buildings (R2 = 0.887).The book doesn't stop at the finding. It delivers the ASEF-S framework - a regionally calibrated, three-dimensional assessment tool with an Energy Consequence Calculator that lets architects and developers see the energy cost of a spatial decision at concept stage, before it's locked in for forty years.Written for architects defending design decisions in review, developers underwriting feasibility, sustainability consultants bridging regional and international certification systems, and researchers extending the methodology - this is the first book to put a number on what inefficient space actually costs, and a tool to close the gap while it's still cheap to change. A data-driven framework showing architects and engineers how to measure, control, and design architectural space efficiency in high-rise towers - and why every percentage point lost becomes a permanent energy bill. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. Seller Inventory # 9798905890130
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The Net-to-Gross Equation: Architectural Space Efficiency and Energy Performance in High-Rise Towers
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The Net-to-Gross Equation
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The Net-to-Gross Equation
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The Net-to-Gross Equation (Paperback)
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Paperback. Condition: new. Paperback. Every high-rise carries a hidden number few developers ever ask about: how much of its floor area actually does anything - and what the rest is quietly costing in energy, every single year, for the life of the building.Backed by a dataset of 34 buildings, 20 expert interviews, and eight projects tracked across five design stages, this book proves what practitioners have long suspected but never measured: spatial efficiency isn't a leasing metric with a side effect on sustainability - it's one of the most powerful, controllable levers on a building's lifetime energy performance. In hot arid, high-density markets specifically, each percentage point of Net-to-Gross ratio lost is associated with a 10.43 kWh/m2/year increase in energy intensity - 46% steeper than the equivalent effect in temperate-climate buildings (R2 = 0.887).The book doesn't stop at the finding. It delivers the ASEF-S framework - a regionally calibrated, three-dimensional assessment tool with an Energy Consequence Calculator that lets architects and developers see the energy cost of a spatial decision at concept stage, before it's locked in for forty years.Written for architects defending design decisions in review, developers underwriting feasibility, sustainability consultants bridging regional and international certification systems, and researchers extending the methodology - this is the first book to put a number on what inefficient space actually costs, and a tool to close the gap while it's still cheap to change. A data-driven framework showing architects and engineers how to measure, control, and design architectural space efficiency in high-rise towers - and why every percentage point lost becomes a permanent energy bill. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. Seller Inventory # 9798905890130
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The Net-to-Gross Equation (Paperback)
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Paperback. Condition: new. Paperback. Every high-rise carries a hidden number few developers ever ask about: how much of its floor area actually does anything - and what the rest is quietly costing in energy, every single year, for the life of the building.Backed by a dataset of 34 buildings, 20 expert interviews, and eight projects tracked across five design stages, this book proves what practitioners have long suspected but never measured: spatial efficiency isn't a leasing metric with a side effect on sustainability - it's one of the most powerful, controllable levers on a building's lifetime energy performance. In hot arid, high-density markets specifically, each percentage point of Net-to-Gross ratio lost is associated with a 10.43 kWh/m2/year increase in energy intensity - 46% steeper than the equivalent effect in temperate-climate buildings (R2 = 0.887).The book doesn't stop at the finding. It delivers the ASEF-S framework - a regionally calibrated, three-dimensional assessment tool with an Energy Consequence Calculator that lets architects and developers see the energy cost of a spatial decision at concept stage, before it's locked in for forty years.Written for architects defending design decisions in review, developers underwriting feasibility, sustainability consultants bridging regional and international certification systems, and researchers extending the methodology - this is the first book to put a number on what inefficient space actually costs, and a tool to close the gap while it's still cheap to change. A data-driven framework showing architects and engineers how to measure, control, and design architectural space efficiency in high-rise towers - and why every percentage point lost becomes a permanent energy bill. This item is printed on demand. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability. Seller Inventory # 9798905890130
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The Net-to-Gross Equation | Architectural Space Efficiency and Energy Performance in High-Rise Towers
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Taschenbuch. Condition: Neu. The Net-to-Gross Equation | Architectural Space Efficiency and Energy Performance in High-Rise Towers | Eng. Ibrahim Saad | Taschenbuch | Englisch | 2026 | Dr. Eng. Ibrahim Saad | EAN 9798905890130 | Verantwortliche Person für die EU: Libri GmbH, Europaallee 1, 36244 Bad Hersfeld, gpsr[at]libri[dot]de | Anbieter: preigu Print on Demand. Seller Inventory # 136342234
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