These are the five main reasons low lying gardens flood.
These are just a few examples of common causes of floods, but sometimes you need to look a little closer to home! Clogged or broken pipes, leaking gutters, down pipes discharging into the ground instead of being connected into the drainage system, dripping outside taps, impermeable material used to construct our driveways and patios. Mud and other rubbish brushed over kerbside drains. AND water from higher gardens flowing naturally into yours. OR directed to your garden from neighbouring properties!
This article 'HOW TO STOP WATER FROM NEIGHBOURS GARDEN RUNNING INTO MINE' could help
Before setting about raising your garden, it might be worth considering a couple of other options. One option described here Building a Bund or Levee really can protect your home from flooding. You can find other solutions in the website menu.
In this guide to raise the surface level of a garden I have explained;
Top tip If you have got good access to the area you are raising leave a gap in the wall wide enough to get a digger and tipper lorry through. It's a lot easier if you tip the rubble and then the soil directly onto the area being raised. Then finish the wall.
There are Pros and Cons involved in owning a home built on a floodplain. Pros; such as boating on the Thames, fishing, bird watching, the land is rich and fertile, relaxing sound of running water. You will probably pay significantly less for the property than for a similar house on the hill, possibly out weighing a major Con, higher insurance premiums. Other cons are: Sewers filling with river or groundwater and backing up into the house, Having to move and refit all electrical points and switches, if you are a worrier lying awake all night every time it rains. There are a lot of pros and a lot of cons. Thoroughly check it out before you buy.