London-based property investor and developer Great Portland Estates (GPE) said on Wednesday that The Great Wigmore Partnership, its 50:50 joint venture with Scottish Widows, has sold 180 Great Portland Street, W1 to German investor Commerz Real for £79.5 mln (EUR 100 mln), around 4% below the June 2008 valuation. Commerz Real is contributing the property to its hausInvest europa real estate fund.