I have a rather big house and there's still competition. I think you should highlight your space and what makes you awesome. I don't have a fenced yard, so I need to focus on my big indoor space, gated deck for outdoor play, and walks to visit our chickens and garden. I also provide all homemade meals (including bread). My biggest asset though is being an ER nurse on the side! All parents I've interviewed have said it makes them feel better knowing I'm prepared for the worst and can keep calm in a crisis. Practice your interview with a friend. Wouldn't it be great if the people sent by your competition choose you!