I have lived in my new build house a year now , and have spent a huge amount of money landscaping the garden . I noticed it was quite wet during the winter , but recently since the addition of more houses at the rear of mine the problem seems worse. I have had to remove very expensive plants that were just going yellow and sitting in stagnant water. Since doing this the plant holes have now become ponds !! Today I have dug a channel at the end of my patio as I had a river flowing over it . Having been on this site (HAYWOODS HOMES) AND LIVING IN THE FIRST PHASE, I have seen the problems with drainage in the new houses that have since been built . WHAT CAN I DO ARE THEY LIABLE. ?