Britains historic exit of the European Union has effected many different financial markets, including the U.S. housing market.
Almost immediately after Britain left the EU, the yield on the 10-year Treasury fell from 1.75% to 1.43%. Mortgage rates tend to follow long term Treasury yields, therefore, the drop in the yield on the Treasury has lowered the mortgage rates, for now.
Many analysts believe that the demand for U.S. real estate will rise. Especially in the larger cities such as New York, Los Angeles and Miami. According to KC Sanjay, Senior Real Estate Economist with Axiometrics, International investors have been increasing their holdings in the U.S. over the past several years, as they have gained a better understanding of the American apartment market and appreciation of the sectors profitability. Sanjay went on to say, "The U.S. government made international investment in America easier by easing the tax burden on many of these deals. For example, a non-U. S. investor can now own up to 10% of a REIT before incurring federal taxesup from 5%. This December 2015 action also exempts certain foreign pension funds from taxes from their U.S. property holdings." This could mean that real estate prices will continue to rise.
In the meantime, if you haven't taken advantage of the low interest rates as of yet, you should consider refinancing soon, as the Brexit decision could change the U.S. interest rates and house prices for the future.