Mahdiseño — Tools

Instruments for measuring value

Evidence-based calculators and decision tools that translate design decisions into economic language. Built on peer-reviewed research — usable in sixty seconds.

ROI & Fee Calculator
Performance Tool — 02
Performance Tool — 03
How It Works

From project details
to client-ready result

Step 01
Input

Enter your project type, gross floor area, and the scope of performance services you're delivering.

Step 02
Calculate

The tool applies research-calibrated multipliers and peer-reviewed performance data to generate your fee range and ROI projections.

Step 03
Present

Your result includes full research citations and a summary formatted to show clients — not just a raw number.

47+
Research studies in the evidence base
3.1×
Average ROI on performance interventions
60s
Time to generate your value report
Free
No account required to use the calculator
In Development

More tools,
coming in 2026

The calculator is the first of several. Two more tools are in active development — both built on the same evidence-based methodology, each designed for a different moment in the design and consulting process.

A tool for scoring space

A structured way to translate field observations and data into a single, communicable performance score for an urban area or site. The methodology is in development — the tool will follow.

Urban areas Performance scoring Field data
A tool for making the case

Structured decision-support for design and planning meetings. Turn performance data into a format that works in the room — with the right stakeholders, at the right moment in a project.

Decision support Stakeholder meetings Evidence-based

Every output is evidence-backed

All multipliers, ranges, and projections in our tools are calibrated against peer-reviewed research. Browse the Evidence Base to see the studies behind each calculation.

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