| g'day penny, you maybe could have considered the drainage of the site before laying the turf? there are a couple of possible fixes, possible because i can't realy see or get a correct impression of the area at fault. it could be beneficial in getting a result if you could determine that the water was just pooled water from heavy rain or there is some run off involved as well, that could be you have land above and higher than you. if there is run off involved then you would need to install some sort of drain to capture that flow and redirect to another area, not onto a neighbours property i think you will find that is not accepted by council or neighbour, you can run it across public space even footpaths if it runs into the storm water drain outside your property. you may have to create a collection sump that is a deep hole at least 1 meter + would be better and around 1 meter wide and fill it with 40mm crushed rock, cover the rock with old flyscreen/shade cloth and then relay the turf, you will need a collection pot at the end of the drain to shunt the water into this area. if it is an area of general bad drainage then maybe take a look at our site and look at the agricultural drainage system illustrated there, this is fairly major work and yes always better done before laying turf, but the turf can be lifted and stored whilst the drains and the run off area are created. if it is because the ground is lower than that around it then raising the level in that area will fix the issue or go someway to fixing it? you could try top dressing over some season to raise the level. len | 
