Downtown's Adaptive Reuse Pioneer: How One Developer Is Reshaping DC's Office Future

The office market across Washington DC faces an uncomfortable reckoning. Vacancy rates in downtown corridors have climbed to 17.8 percent—the highest in nearly a decade—as remote work and corporate belt-tightening reshape tenant demand. But in the shadow of these headwinds, one local developer is proving there's still significant opportunity in reimagining what office space can be.

Marina Westbrook, founder and principal of Westbrook Adaptive Partners, has quietly emerged as a leading voice in transforming underperforming commercial properties into vibrant mixed-use destinations that blend office, retail, hospitality, and residential components. Her firm's flagship project, the conversion of a 1970s brutalist office tower on 14th Street NW in Logan Circle, offers a case study in how creative capital and local expertise can revitalize aging real estate.

The property, acquired in 2023 for $42 million, sat with 40 percent vacancy. Rather than chase flight-to-quality tenants with aggressive pricing, Westbrook bet on repositioning the entire asset. The renovation carved out 8,000 square feet of ground-floor retail and a 120-seat restaurant operated by a roster of local chefs, while the upper floors were reconfigured into smaller, flexible office suites designed for the hybrid era. A 50-unit residential component—intentionally priced at market rate to anchor neighborhood vitality—rounds out the mix.

"The days of single-use office towers are behind us," Westbrook told colleagues at the DC Office and Industrial Association conference in April. The strategy appears to be working: the tower now operates at 78 percent occupancy, with average rents stabilizing at $38 per square foot—a modest premium to neighborhood comps but sustainable given the improved amenities and lower tenant fitout costs.

Her approach reflects broader market signals. CoStar data shows adaptive reuse projects across the DC metro region command occupancy rates 12 percentage points higher than conventional office buildings. Yet conversion deals remain rare, constrained by financing challenges and zoning friction. Westbrook has navigated these hurdles partly through relationships cultivated over two decades in local real estate and partnerships with institutional investors seeking non-traditional return profiles.

Other developers are watching closely. Two competing proposals for converting vacant office stock along Massachusetts Avenue NW explicitly reference the 14th Street model. The DC Office of Planning has fielded a surge of adaptive reuse inquiries in recent months—a sign that pragmatism may be displacing the speculative office fever that once defined the market.

Whether this signals a genuine recalibration or merely a response to cyclical weakness remains an open question. But for now, Westbrook's willingness to abandon the old playbook offers a template that others in DC's competitive real estate scene are scrambling to replicate.

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