LightStanza for Daylight

Technical Daylight Calculations

It shouldn’t be a headache to achieve superior daylighting in all of your projectS

LightStanza is simple to use, but does not oversimplify daylight solutions 

Working in your internet browser, LightStanza runs on the validated Radiance engine and handles complicated calculations with ease

Complete Daylight Analysis Tool

Gold-Standard Robust LEEDv4 calculations, following IES LM-83.

Highly customizable, point in time, annual metric, daylight factor, energy map, and glare calculations

Explore a variety of daylight products including skylights, translucent glazing, dynamic glass, automated shading systems, and more!

Simple workflows, with custom control for experts

Find Glare Automatically!

Identify the time and location of the worst glare in a single click

Easily compare glare mitigation strategies

Eliminate hours and days optimizing your daylight solution

LightStanza Just Works!

...The Competition Doesn't

Unlike our competitors, Lightstanza uses best practices for accurate daylight simulation using the RADIANCE engine. LightStanza's results are cited as gold-standard.

LightStanza was founded in 2015 by a leading expert in the field who participates in technical standards committees.

LightStanza’s gives you real data you can trust so you can enjoy the benefits of daylight.

In this example Autodesk Insight predicts daylight in windowless closets. It predicts the same amount of light outside the closet too (20%)!

There are no industry-wide tests for daylight accuracy

Our Competition exploits an unregulated Industry!

Studies have questioned accuracy of several tools

Read here for more details on Autodesk Insight compared to LightStanza

Accurate & Fast Calculations Make Compliance Easy

Download a one-click LEED v4 report card in minutes!

✓    The only software tool that follows IES LM-83 for accurate results

✓    sDA Calculation includes blinds for accurate results

✓    Submit printable forms to the USGBC


European Standard Compliance (prEN17037)​

✓  The only software tool on the market that can quickly and accurately compute a daylight report card which includes sDA with required daylight hours

Easier way to obtain WELL v2 prerequisites and credits

✓ ASE calculator helps you obtain:               L04: Glare Control

✓ sDA calculator helps you obtain:
       L01: Light Exposure & Education
       L05: Enhanced Daylight Access

Download raw data from LightStanza for compliance analysis for: 

  • BREAM Standard (Europe)
  • CHPS Standard (US) – Collaborative for High Performance Schools
  • EFA Daylight Design (UK) – Education Funding Agency 
  • Israeli Standard 5281 (Israel)
  • and many more..

Reach out to us for help on using Lightstanza to meet your specific standard by emailing

Understand How Real Products will Perform in Your Design

Easy to simulate electrochromic glass and automated blinds and shades

Simulate built-in name brand products and reach out directly to manufacturer reps with link of your design for questions

Flexibility to upload your own BSDF files for products not already incorporated

In-Depth Tutorials about LightStanza

A comprehensive 45 minute video highlighting LEED Daylight Analysis with LightStanza by Harshul Singhal (Senior Energy Engineer). This tutorial will explain how LightStanza can be used in conjunction with Sketchup and Rhino.

This 10 minute video shows LightStanza’s workflow with Revit. Harshul highlights LightStanza’s glare capabilities and the real time live-linking (3:35) between Revit and LightStanza.

"We have recently found LightStanza a great fit for our process in terms of accuracy, predictability, technical support, and seamlessness"
Waleed AlGhamdi

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