Residential Daylight Score

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Residential Daylight Score
  • Credits: Timur Dogan, Ye Chan Park
  • Date: Nov 2016 - Ongoing
  • Link: Link to the paper

Current climate-based daylighting metrics are optimized for evaluating office and classroom spaces and have limited applicability for residential use cases; they fail to highlight relevant aspects of natural light in residential spaces, such as diurnal and seasonal availability of daylight and access to direct sunlight. The Residential Daylight Evaluation Framework (RDEF) is introduced as a new climate-based, annual methodology to quantify daylight autonomy and access to direct light in temperate and cold climates; diurnal and seasonal bins are introduced to specifically highlight when undersupply occurs.

Scores based on these assessments can be produced to objectively compare the daylighting performance of different apartment units. Several methods of visualization are tested: Spatial maps representing daylight autonomy and access to direct light can be overlaid on plans of apartment units and floors, while false-color volumes representing final scores can be used for the building- and urban-level. A consideration for the early-design application, when specific partitions within units are not yet finalized, is given in the form of re-adjusting scores and/or altering metric threshold values.


We investigate the intersections of architectural design, sustainability, building performance simulation and computational design. We stand for excellence in teaching and research in the area of building technology, daylight and energy modeling, passive climate control strategies and performance driven design workflows in both urban and architectural scales.


Led by: Prof. Dr. Timur Dogan
Website: Cornell AAP Profile
Email: tkdogan[at]cornell.edu


Cornell University, AAP
240B Sibley Hall
Ithaca, NY 14853,USA