Deal Ticker: Landmark Design District Property Exchanges Hands Plus senior community planned on Haggard Family land in Plano, million-square-foot speculative warehouse planned in West Dallas, and more. Dallas’ Quadrant Investment Properties has purchased the award-winning International on Turtle Creek showroom and office complex on Irving Boulevard. Quadrant purchased the building from Dallas-based Stockdale Investment Group, which purchased the 155,000-square-foot complex in 2016. Quadrant acquired in a venture with Maryland-based Federal Capital Partners. J. Scott Lake and Jake Milner of Davidson & Bogel Real Estate represented the buyers. INDUSTRIAL/LAND Houston-based Lovett Commercial has filed plans with the state to build a 1 million-square-foot speculative warehouse near the northwest corner of Singleton Boulevard and Norwich Street in West Dallas. Plans say the project could break ground by February and deliver by the first quarter of 2022.