
Urban Residential Redevelopment — High UXO Sensitivity
Managing UXO risk on a brownfield redevelopment in a heavily bombed WWII urban area. The mitigation was proportionate that discharged planning conditions without blanket measures.
The challenge
S.I UXO was appointed to manage UXO risk at a brownfield redevelopment site within a heavily bombed WWII urban area. A CIRIA C681-compliant Preliminary UXO Risk Assessment identified high risk of unexploded aerial bombs, supported by historic bombing density data and wartime mapping.
Our approach
S.I UXO designed and executed a non-intrusive magnetometer survey, followed by targeted intrusive verification in pile locations. Advanced data processing enabled discrimination between shallow ferrous clutter and deeper bomb-sized anomalies, allowing the mitigation programme to be focused on genuine risk areas rather than applying blanket measures across the whole site.
The outcome
- No UXO encountered during piling or excavation
- Planning conditions and Principal Designer requirements discharged
- Client avoided blanket mitigation measures, saving time and cost
- Works completed without delay or safety incidents
More case studies.

Bath Street / Construction / Development
UXO Identification and Controlled Excavation — Bath Street
Full-cycle UXO management from desk study through CPT investigation to the confirmed identification and safe management of a WWII SC50 Luftwaffe aerial bomb, delivered entirely in-house.

North West England / Mixed-use Redevelopment
Time-Critical Enabling Works
Rapid deployment of UXO supervision for enabling works under a compressed programme, with zero downtime and strong H&S outcomes despite short-notice appointment.

Midlands / Commercial
Greenfield Development with Deep Foundations
CPT-based intrusive UXO detection integrated with a geotechnical investigation on a site where historical analysis revealed undocumented bombing risk in an apparently low-risk rural setting.
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- CIRIA C681-compliant reports
- Delivered within 24 hours
- Senior engineers, start to finish
