Dumbarton Oaks Main House Restoration
A comprehensive restoration of the historic Main House, preserving architectural heritage while implementing modern systems and accessibility
Project Overview
The Dumbarton Oaks Main House represents one of the most significant historic preservation projects undertaken in the Washington, D.C. area. This comprehensive restoration effort addressed the complex challenges of modernizing a National Historic Landmark while maintaining its architectural integrity and historical significance.
Landmark Logix provided end-to-end project management for this multi-year restoration, coordinating preservation specialists, structural engineers, MEP consultants, and construction teams to deliver a seamless integration of 21st-century building systems within an early 20th-century architectural masterpiece.
The project scope included structural stabilization, complete mechanical and electrical system upgrades, restoration of historic finishes and architectural details, full ADA accessibility implementation, state-of-the-art life safety systems, and enhanced climate control for collection preservation.
Working within the constraints of an active research institution, we implemented a carefully phased approach that allowed portions of the facility to remain operational throughout construction. Our team navigated complex regulatory requirements from multiple preservation authorities while maintaining the project schedule and budget.
Project Timeline & Progression
Phase 1: Assessment & Planning
Months 1-6Comprehensive structural assessment, historic documentation, and systems evaluation
Phase 2: Structural Stabilization
Months 7-18Foundation reinforcement, roof restoration, and envelope improvements
Phase 3: Systems Installation
Months 19-30Modern MEP systems, life safety upgrades, and accessibility modifications
Phase 4: Historic Finishes
Months 31-36Restoration of millwork, plasterwork, and decorative finishes
"Landmark Logix demonstrated exceptional expertise in managing this extraordinarily complex restoration. Their ability to balance the demands of historic preservation with the need for modern functionality exceeded our expectations. The Main House now serves our mission better than ever while honoring its architectural legacy."
Dr. Sarah Thompson
Executive Director, Dumbarton Oaks
Project Details
Client
Dumbarton Oaks
Sector
Education & Research
Duration
36 months
Budget
$24.5M
Size
45,000 sq ft
Key Achievements
48% Energy Reduction
Achieved through modern HVAC and building envelope improvements
National Preservation Award
Recognized for excellence in historic restoration
Zero Collection Damage
Protected priceless artifacts throughout construction
Full ADA Compliance
Seamless accessibility without compromising historic character
On-Time Delivery
Complex 36-month project completed on schedule
Operational Throughout
Phased approach maintained facility operations
Scope of Services
Landmark Logix provided comprehensive project management services for this landmark restoration:
- Historic preservation consulting and regulatory compliance
- Structural engineering coordination and oversight
- MEP systems design and installation management
- Construction phasing and logistics planning
- Budget management and cost control ($24.5M)
- Quality assurance and preservation standards enforcement
- Stakeholder communication and coordination
- Risk management and safety protocols
- Schedule management and milestone tracking
- Post-completion commissioning and documentation
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