your maintenance will be pretty huge then...we have one acre of cleared, established garden and it takes dh 3 hours to mow the lawn and whippersnip. the amount of leaves you have to rake up is enormous. if you can afford it, you can always pay a garden maintenace company to come in once a month and keep it looking great- but this would be an extra cost you would need to factor into your move though.
is the block flat or on a slope?