Strategies to avoid high illuminance level

You describe the requirements for Option 2. Simulation. What is the latitude of your project? What is the transmittance of the windows? Can you lower the transmittance value of the windows and still maintain the lower limit on the illuminance level?

Please be careful with modeling with Ecotect+Radiance. You may not be able to fulfill the requirement for v4. You can model your surrounding building and contour.

SS, Without knowing anything else about your project, it will be difficult to make reliable recommendations as good daylighting can be a very complicated thing. For example, if you are stating that your project is 6.2 degrees south of the equator, it is in one of the best places for using horizontal sunshades to block direct light. Comparatively, your project has one of the highest sun angles at 9am and 3pm. I'm guessing I don't understand what you mean by 6.2 South. Yes, lowering the VLT will reduce the overall daylighting and this was the idea. I don't know what your levels are now, but if you could afford to lower the overall daylighting to bring down the high values to within range, I don't think you'll be disappointed. Sixty-seven percent VLT is a high number. This is a very difficult credit to achieve. I believe you can have good dayligting and not meet the credit requirements, but it would take a much longer evaluation of your project to determine the viability of either of these outcomes. It is probably out of the scope of this forum. I would be happy to help you further independently if you would like.