The theft occurred sometime between 10.00pm on Saturday July 12th and 9.00am the following morning.
One of the bicycles stolen is a matt black coloured Cube LTD mountain bike with a 20 inch frame.
Fairwater local policing Inspector Paul Arkontopoulos said: “We would like to hear from anyone who may have information with regard to this burglary. If you saw anyone behaving suspiciously in the area or if you have information about this crime then please contact the police.
“Crimes of this nature are unusual in this area and I want to remind residents always to lock their possessions and away and to ensure their property is always kept secure.”
South Wales Police also advise householders that if they require any advice on improving the security of their home they can contact the Crime Prevention Officer at their local police station, their Community Safety Partnership or their Neighbourhood Policing Team.
If anyone has any information concerning this offences please contact South Wales Police on 101 or anonymously via Crimestoppers on 0800 555 111 and quote reference 1400251623.