2026-09-06

7 arXiv categories· 96 journals· 2155 candidates — 1 worth your time· 107 without an open abstract

Headline

Building placement and density adjustments for solar rights in residential blocks

Today, together

tag shift
no tag ran above its 30-day average
on the same shoulders
6 of the day's papers cite Accessibility evaluation of land-use and transport strategies: review and research directions (Karst Geurs, Bert van Wee 2003); 6 cite Travel demand and the 3Ds: Density, diversity, and design (Robert Cervero, Kara M. Kockelman 1997); 4 cite Travel and the Built Environment (Reid Ewing, Robert Cervero 2010) counted over the 107 of this day's 108 named papers whose reference lists we have — standing on the same older work is not the same as being about the same thing
first appearance
Islamic Azad University North Tehran Branch none of them on a paper we published in the 86 days before this issue

Two counts, not one counted twice: every row here but “on the same shoulders” counts the papers published above, and that one counts every paper this day named — those and the ones under Also published today, whose abstracts we could not read.

published: Discover Cities

Seyed Alireza Nasehi
Discover Cities

Islamic Azad University North Tehran Branch

Building Energy and Comfort Optimization · Urban Heat Island Mitigation · Architecture and Computational Design · Islamic Azad University North Tehran Branch

Analyzing the effects of building density and placement on shading and solar energy reception in residential areas

This study models a medium-density residential block in Tehran consisting of 40 buildings across four rows to analyze overshadowing and solar energy reception. Using Rhino, Grasshopper, and the Ladybug plugin alongside manual sun chart calculations, the researchers evaluated solar radiation during seasonal solstices. They tested seven alternative design scenarios that alter building placement and density, finding that the optimal layout restricts winter solstice shadowing to only the ground floor without requiring a reduction in overall density.

Why it matters — It demonstrates that simple adjustments to building placement within a plot can resolve severe daylight obstruction on lower floors, offering urban planners a practical method to preserve solar rights without sacrificing urban density.

Caveat: The findings and proposed layout scenarios are based on the specific solar angles and conventional urban morphology of Tehran, which may not directly translate to cities at different latitudes or with different architectural typologies.

Discover Cities · pdf · doi

Also published today

These appeared today in journals we track. Their abstracts are not openly available, so we cannot summarise them.