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CoStar names Robin Rossmann CFO effective July 31, 2026
Rossmann takes over after leading Europe cost cuts of about $51 million, roughly 25% of the region’s cost structure, while delivering double digit revenue growth.
CoStar Group named Robin Rossmann as its chief financial officer, effective July 31, 2026, succeeding Christian Lown. HousingWire reported that Lown will leave to pursue an opportunity outside the company’s industry, and CoStar said the move was not tied to any disagreement over its operations, policies, or practices.
Rossmann currently serves as managing director for Europe and will succeed Lown in leading CoStar’s global finance organization, including oversight of financial and operational performance, capital allocation, financial planning, and investor engagement. He will report to founder and CEO Andy Florance, according to the company announcement.
CoStar said Rossmann oversaw a reset of its European operations over the past two years, including eliminating about $51 million in costs, roughly 25% of the region’s cost structure, while still producing double digit revenue growth and launching CoStar in France. The company also highlighted that Rossmann has led international product launches, acquisition execution and integration, and scaling of operations during his decade-plus career with STR and CoStar.
CoStar described Rossmann as a chartered accountant who previously spent 13 years at Deloitte advising real estate and hospitality companies across the United States, the United Kingdom, and other markets. In that role, his work included financial assurance, internal controls and risk management, due diligence, capital markets, debt advisory, valuation, and investment appraisal.