is this natural? These houses are spacious and comfortable because they've got several bedrooms and bathrooms. They're quite economical because they tend to be smaller in size and therefore cheaper.

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Hello,

Perhaps try: These homes are spacious and comfortable since they have several bedrooms and bathrooms. Since they are smaller than [here you should be specific about what type of house you are comparing it to] they are a more economical option.

I hope this helps,
JM