The UK's rate of inflation rose slightly to 1.9% in March, up from 1.8% in February.
The Office for National Statistics (ONS) said rising fuel prices were the main reason for the rise, though it was offset by falling food prices.
The ONS also revealed that house prices in February grew at the slowest rate since September 2012, up 0.6%, while prices in London dropped 3.8%.
The average house price in the UK is now £226,000, just £1,000 more than in February. The fall in London is the biggest since 2009 at the height of the financial crisis, although it is still the most expensive place to buy a house with the average price £460,000.