I have almost the same area of yard right now, downtown Halifax. I have two top bar hives on the south side of my house - really between my house and the south neighbor - separated from him by a high hedge.
My advice:
First thing: Ask your immediate neighbors before you go get bees. If they find out about them with a swarm or a stung allergic child, you will look very bad, and likely feel very bad. I was really stressed about asking mine, and I was very tempted to just not ask for fear they'd say they didn't want them around, but I am very glad I did. Now those same neighbors tell other neighbors how great bees are to have around.
Second: No more than two hives. Resist the urge to expand in that location. But if city ordinance allows, you can always advertise to keep bees in someone else's yard.
Third: Begin finding an out-of-town location right now as a plan B if you need to move your hives on short notice. I have two friends in the country wanting to have the hives there. This allows me to move them if a neighbor gets picky. It also allows you to expand without the bees getting too thick in your yard.
If we want people to look kindly toward bees and beekeeping, then it is our responsibility to to act accordingly.
Lastly, I'd like to add that despite the challenges, putting the two hives here so close to me was the best thing I ever did for this home. Those bees have been so much fun to have around, and we all have learned so much from them being so close. I absolutely recommend having them where you can enjoy them easily. I have watched my bees and been able to check their activity (or lack thereof) every day that I've been home for the last two years. And it has been great. Under pressure from me, my father finally moved his from a field 15 minutes drive away, to his back yard, and he has been singing the praises of that move ever since.
Adam