LONDON, July 10 (Reuters) - More signs emerged last month that the upturn of Britain's housing market is starting to moderate, even in hotspots like London, a survey showed on Thursday.
The Royal Institution of Chartered Surveyors' monthly house price balance eased to 53 in June from a downwardly revised 56 in May, slightly below the forecasts in a Reuters poll of economists.
Chartered surveyors said tighter mortgage lending standards introduced in April were slowing the volume of transactions, along with "heightened rhetoric" from the Bank of England about the possibility of higher borrowing costs.
"The BoE's recent introduction of a ceiling on high loan-to-income lending and a 3 percent interest rate stress test is unlikely on its own to have an immediate influence on the market," said Simon Rubinsohn, RICS chief economist.
"However, rhetoric from key officials at the Bank, including Mark Carney, alongside the consequences of the introduction of (tighter mortgage standards) are already slowing momentum, particularly in London."
A survey by mortgage lender Nationwide showed last week that London house prices soared 26 percent over the past year, the biggest annual jump since 1987.
But the RICS report suggested that growth is unlikely to be sustained at that level in the capital. Its London price balance fell to the lowest reading since March 2013 last month and is now below the national average.
Another survey, from mortgage lender Halifax on Wednesday, also suggested the housing market is cooling a touch. It showed prices unexpectedly slipping last month but rising 8.8 percent compared with June last year. (Reporting by Andy Bruce; Editing by William Schomberg, Larry King)