First thing that came to my mind
Modular Homes
Often referred to as factory-built (or pre-fabricated) homes.
Modular homes come pre-built in sections from the factory.
Modular homes are then transported to the building site on truck beds, and set together using by a large crane and construction workers at the building site.
They are finished on location, and must conform to all local, state or regional building codes.
After the contractor places the modular home on site and completes the finishing work, a local building inspector will visit the site to inspect the home to ensure its construction adheres to the state or regional requirements and that all finish work was completed safely and up to standard.
Modular homes are placed on a permanent foundation at the building site and often have full basements.
Modular homes are sometimes used to expedite the creation of planned communities or large residential projects like college dormitories.
Modular homes are typically larger than manufactured homes - they have full kitchens, bathrooms and bedrooms, washer and dryer hookups. Many even have fireplaces and dishwashers.
Modular homes are typically more expensive per square foot than manufactured homes.
The home equity of a well-built modular home will continue to grow in value over time. Upgrades can also be added like sun rooms, gas fireplaces, porches, garages, etc.
A “mobile home” is a specific type of manufactured home. The term applies to any manufactured home built prior to June 15, 1976.
By its very definition, any mobile home on the market today is over 40 years old.
The term “manufactured home” references homes that were constructed on or after June 15, 1976. These homes meet HUD’s modern safety and quality requirements.
Manufactured Homes
Very old models are sometimes referred to as mobile homes or trailers
Manufactured houses are pre-constructed completely in the factory on a permanent, fixed steel chassis.
Manufactured homes have wheels which are typically detached once the unit is towed to the residence.
Manufactured homes typically have skirting/siding around the bottom of them to hide where the wheels were removed and to give it the appearance of a typical home.
Manufactured homes must abide by a Federal HUD building code.
Once built the manufactured home (typically 1-3 units) is moved to its final residence using their own wheels.
Manufactured homes remain on their steel chassis, and do not have basements. Theoretically they can be moved but that rarely happens.
Manufactured homes often face special residential zoning restrictions which can limit their placement.
Some families use the old and smaller manufactured homes for mobile vacation homes.
Mobile homes technically are manufactured homes but are very different when compared to today's manufactured homes.
Building inspectors are sometimes called in to inspect the electrical and propane gas hookups, but trailers do not need to pass a building code for occupation.
Manufactured homes are generally less expensive than modular homes.
Manufactured homes are often a little harder to finance and generally decrease in home equity value.