Online Tools — Designed for Architects, Designers & Developers
At SAO Architects, we know that good design starts with smart planning. That’s why our free online tools will help you explore key metrics and make informed decisions early in your projects.
Whether you’re checking site potential or estimating build scope, our tools are simple, accurate, and tailored to the needs of design professionals and clients alike.
FAR Calculator — Floor Area Ratio
Check how much you can build on a site.
Our FAR Calculator makes it fast and easy to understand the development potential of a property. Just enter the site area and maximum allowable FAR — and instantly see the total buildable floor area.
This tool is ideal for:
- Preliminary site feasibility studies
- Early project planning
- Comparing options for design scenarios
How it works:
- Site Area: Enter the total lot size.
- FAR Value: Plug in your local zoning FAR limit.
- The calculator returns the maximum total floor area you can build.
With both basic and advanced modes, you can choose the level of detail that fits your project.
This helps you quickly assess what’s possible — before you start sketching.
Note: Local zoning rules may exclude certain areas, such as basements or terraces. Check your municipal regulations for precise limits.
💡 Why Use Our Tools?
- Fast & free — no signup required
- Accurate calculations based on standard planning conventions
- Clear results that help guide early decisions
- Compatible with UK and international planning frameworks
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