Both sentences are correct. It all depends on the situation whether it sounds natural or not. -となりand ちかく Maybe you already know the difference :) となりmeans next to. In this case, the house and the bus stop is next to each other like below.(Hope you can see it as I want...) ○:bus stop ■:my house □: other houses ---------------------------------- street ------------------------------ □□■○□□□ If bus stop is like this↓ I would say it's "私の家の前にあります(in front of my house)" . ------------------------------- street ----○--------------------- □□■□□□ ちかくmeans nearby. So it could be in front of or anywhere within 50 meters or so(the number may vary) from the house. -----○------------○------------ street --○-----○------------○----- □□□■□□□□○□□□□□ -がandは Look at these three sentences. They are all different, and I tried to show the differences in my translation. 1. 私の家はバス停のちかくにあります "My house is nearby a/the bus stop." 2. バス停のちかくに私の家があります "Nearby the bus stop, there is my house." 3. 私の家のちかくにバス停があります. "Nearby my house, there is a bus stop." (I changed となりtoちかくso we can focus on the grammar here.) Sentence1 tells where is my house. Sentence 2 tells what exists nearby the bus stop. Sentence 3 tells what exists nearby my house. So, in what situation(s) you can use them? 1 and 3 are common. You tell your friends where your house is, or what you have in your neighbor. 2 is not very common. I actually couldn't think up any situation I'd use it naturally. If it's not "my" house, say, an unknown house painted red(赤い家). Then I can say like this: "When you come to my house, take bus line 23, get off at xyz bus stop. There is a red house nearby the bus stop(バス停のちかくに赤い家があります). My house is next next to that house." I think this is why James-san and toru-san above mentions the second sentence doesn't fit well. But I know it's difficult >< hope it helps!

I think both sentences are correct and sound natural to me. For the second sentence, I would say 私の家はバス停の近くにあります。 But your sentence is still ok, particulary when you would like to put emphasis on the bus stop, not the train station, for example. I am a native speaker of Japanese but I am not a teacher, so please do not take it too seriously. thanks.

I prefer the first one. To me it sounds more natural, but I can't tell you why I think that. I'm interested to know what the native speakers say.