How urban design can be weaponized against places of worship

Wars & Conflicts · Published 17 October 2026 Swipe more like this →

In short: In 2015, Saudi Arabia faced a series of bombings that targeted the nation's Shia minority. While the acts were horrific, researchers have identified a chilling secondary factor: the way cities are built. Urban planning features can inadvertently create vulnerabilities that terrorists exploit to maximize casualties.

The 2015 bombings in Qatif and Dammam targeted Shia mosques, where approximately 14-15% of Saudi Arabia's 16 million natives reside. In Qatif, a suicide bomber killed 23 people during Friday prayers—the first time a mosque in Saudi history had been attacked in such a manner during that specific service. The Islamic State claimed responsibility, identifying the bomber as Abu Amer Al-Najdi, though Saudi authorities identified him as Salih bin Abdurrahman Salih Al Ghishaami.

The attacks occurred against a backdrop of significant sectarian tension. The Saudi government follows the strict Sunni Islamic Wahhabi movement, which has historically denounced Shia Muslims as heretics. This environment of systematic discrimination, documented by Human Rights Watch in 2009, creates a volatile social landscape. Critics note that the Wahhabi creed shares ideological similarities with the Islamic State, even as top Saudi clerics condemned the bombings as a "crime, shame and great sin."

Recent geospatial mapping of seven major attack sites in Saudi Arabia since 2015 reveals a pattern of urban vulnerability. These specific incidents account for 86% of fatalities and 88% of injuries from such attacks in the last three decades. Researchers found that direct vehicular access, multiple entry points, and poor sightlines facilitated these tragedies. To counter this, experts propose "counter-terrorism urbanism": narrowing roads, creating buffer zones between parking lots and mosques, and applying defensible space principles to improve safety without sacrificing community livability.

These findings align with Saudi Vision 2030's safety goals, suggesting that security is not just a matter of policing, but of architecture. By redesigning how people approach sacred spaces, planners can mitigate the risk of terrorism while promoting equitable access and reducing the fear that stems from urban vulnerabilities.

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