Remember that plans are not necessarily "as is." Builders can use a reverse set of plans (sometimes called a mirror image) to better site a house. It's also possible to hire an architect or modification service to personalize a plan. Ask if reproducible prints or electronic CADD files are available for the selected plan. Either will make the alteration process quicker and easier.
Having been in the business for more than 30 years, we have seen a large number of house plans which looked good at first glance. However, upon closer examination, many of these plans were found to be lacking large amounts of needed information. If a house plan is not easy to navigate or is not thoroughly detailed, then the builder is left to guess at the designer's intentions. This often means that he will "pad" his bid to make sure that he covers any unknown construction costs that may arise.
More about small house plans : Some other small house plans consist of homes that keep the kitchen, bathroom, and bedrooms to the end of the house and the living room in its center. This gives more simplicity and also a sense of luxury to the house.
Where to find small house plans : If you are interested in small house plans you should always look for the best deals on blueprints. Blueprints or plans are available from a variety of sources and at many different prices. Two of my favorites are coolhouseplans.com and dongardner.com. Plans from coolhouseplans have prices ranging from $585 for five sets of blueprints up to $1,175 for CAD files. If you are not familiar with CAD files, these are Computer Aided Drawing files, meaning that they provide all the information needed to build the house on CD-ROM and have blueprints that can be printed and as often as needed and in any quantity.