The City of Tulsa’s Finance Department seeks a qualified professional services firm to update its Unified Design Guidelines for eight historic‑preservation overlay districts. The work involves researching, drafting, and revising both residential and non‑residential guideline documents, coordinating with the Tulsa Preservation Commission and OK/SHPO, and delivering editable and redlined final products. Deliverables must meet federal historic‑preservation standards and Tulsa zoning code requirements, with a tight schedule of drafts and final completion by mid‑August 2026. • Update and expand existing design‑guideline documents, incorporating current best practices, diagrams, and clear language. • Conduct stakeholder engagement, including at least one in‑person meeting with the Preservation Commission and coordination with city staff. • Produce first draft (30 Apr 2026), final draft (30 Jun 2026), and final deliverable (15 Aug 2026), including editable templates and redline change summaries.