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Isovist: An Expert Reveals a Fascinating Insider Secret

Isovist Defined

Isovist is challenging to define in an articulate way. I wish I could give you a good definition of an isovist.

When I Googled the definition of isovist here’s what I found:

“An isovist is a set of all points visible from a given vantage point in space and in relation to an environment. The shape and size of an isovist are liable to change with position.”

So what does that mean? Let’s try to figure it out…

A Simple Explanation

In simple terms, to describe an isovist is to visualize your angle of view when you are looking at an area with a wall. If you have a corner off of that wall and you see the angle of what you can see beyond that.

A Functional Description

The best way to describe the isovist is to describe where it’s used and where it’s critical. A good example is in a bathroom. Nobody wants to be seen using the facilities from people from outside, you want the privacy. Let’s talk about a public bathroom. At the public bathroom, there are usually no doors, like at airports for example. You want a screen that allows you to get in, but not be able to let the public see what’s occurring inside the bathroom. So you have that level of privacy. That angle of view when you’re passing the public bathroom is the isovist. This is what you have to consider in the design process.


There are other places where this concept is important. Another example is in restaurants. We know that there is a kitchen. In the kitchen, they’re preparing food, and they’re making a mess back there. But we do want to keep a certain amount of privacy from the experience of dining outside of the kitchen. The isovist or the view into the restaurant kitchen is important to consider.

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