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A short class with Sarah and her students. The other ways are under More.
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Today, we're going to learn about the Floor Area Ratio, or FAR. Can anyone tell me what they think it indicates?
Is it about how much space a building can use based on its plot?
Exactly! FAR tells us the relationship between the built-up area of a building and the land area it sits on. If we have a FAR of 2, it means that the total floor area can be double that of the plot size.
That sounds like it regulates how dense a building can be in a neighborhood.
Right again! This is crucial for planning and ensuring urban spaces don't become overcrowded. Let's remember: FAR is all about balancing space.
Now let's work through how we calculate the FAR. Can someone remind me of the formula?
Is it total covered area divided by the plot area?
Correct! If a plot is 100 m² and we build 200 m² in total across all floors, what would our FAR be?
That would make it 2, right?
Yes! Now remember, FAR can affect the design and must adhere to local building codes. So keep this ratio in mind as you plan!
The FAR also plays a role in determining how tall a building can be. What do you remember about the formula for maximum building height?
It involves the width of the road?
Yes, that's right! The formula is: Maximum building height = (1.5 x width of abutting road) + front open space. Why do you think this is important?
It makes sure buildings are safe and accessible?
Exactly! Proper height regulations allow for better access for emergency services and maintain a city's skyline aesthetics.
FAR helps us see, how buildings can be, spread wide or stacked, planning helps us act.
Imagine a city where each block follows the FAR rules, ensuring enough space for schools and parks, balancing buildings and greens.
FAR: Find Area Ratio = Effective space ratio.
FAR - Floor Area Ratio: Think of it as 'Finding Allowed Ratios' in building density!
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What is the formula for Floor Area Ratio?
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What is a typical FAR range for many constructions?
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What influences maximum building height?
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The ratio of the total covered area of a building to its plot area.
The total area of land designated for a specific building or development.
A set of regulations governing the design, construction, and occupancy of buildings.
The street or roadway that directly borders a plot of land.
This section explores the concept of Floor Area Ratio (FAR), detailing its calculation and application in building planning and regulation.
Floor Area Ratio (FAR) is a critical parameter in building planning, representing the relationship between the total covered area of all floors of a building and the plot area. It is influenced by various factors including building classification, minimum plot size, desired building height, and adjacent road widths.
Floor Area Ratio (FAR) is defined mathematically as:
FAR = Total covered area of all floors / Plot area
This ratio helps determine the intensity of development on a parcel of land, influencing design planning, zoning, and compliance with the regulations set forth in building codes.
Typically, the FAR value ranges from 1 to 2 based on the type of construction and local laws. For instance, a FAR of 2 means that a building can have a total floor area of twice that of its plot size. This is crucial for managing density in urban development and ensuring adequate public infrastructure and resources are available to support the inhabitants.
The maximum allowable height of a building is determined by a formula which considers:
Specifically, the formula is: Maximum building height = (1.5 x width of abutting road) + front open space. This ensures buildings do not overly overshadow their surroundings and aids in emergency access and urban aesthetics.