Clarity where commercial building projects face challenges

Disputes, claims and legal processes need expert insight that stands up to scrutiny.

JSA provides specialist expert witness and advisory services across architecture and the built environment — clear, independent, and technically robust guidance for clients, legal teams, and stakeholders.

Our expertise spans boundary analysis and dispute resolution, PRA-compliant mapping, rights to light assessments, and the interpretation of contract documentation, drawings, and technical information. We support clients through conciliation, arbitration, and alternative dispute resolution.

We also advise on contractual matters, including reporting and formal correspondence, ensuring issues are addressed with precision and credibility.

Our approach is measured, evidence-based, and rigorously professional. When the case has to hold up under examination, that's what matters most.

Connect with us if you need expert guidance on architectural or construction disputes.