Addition Modular Floor Plans

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Our modular addition plans come in two types – attached modular home addition plans and second-story modular house addition plans. Both types of modular home addition plans come in multiple lengths and widths. Also, both types of modular house addition plans can be designed with a traditional or contemporary flair. In addition, both types of prefab addition plans can have any number of bedrooms and baths. Best of all, modular construction is a great way to build either type of addition. You get the quality and price advantage that modular homes are known for along with faster build time. Speed is particularly beneficial when building modular house addition plans, since the construction will temporarily disrupt your family’s life, especially if you remain in your home while the work is being done.

Our attached modular home addition plans place the addition to the side of a home to create either a separate living unit, such as an in-law apartment, or additional rooms, such as a new kitchen, dining room, and great room. Some of our customers design in-law addition plans at the same time that they build a new modular home with us. Our three Harmony plans (Harmony 1, Harmony 2, and Harmony 3) are very popular with those looking for in-law modular addition plans. Our selection of attached addition plans is substantial, since you can use any of our single family and multifamily plans. However, if you will be placing your modular home addition plans next to an existing house, you might prefer for us to help you design one of our custom prefab home addition plans.

Please note that if you are looking for Elder Cottage Housing Opportunity addition plans, often known as ECHO in-law addition plans, you will want to use our attached modular house addition plans. ECHO modular addition plans are no different from any other in-law modular addition plans. See Building a Modular Addition.

Our second-story modular home addition plans place the modules on top of an existing one-story home to make it into a two-story house. The speed of modular construction is a tremendous benefit when building a modular second-story addition plan, since the addition can be set in place within hours after the roof is removed from your existing home. If you need second-story addition plans, we recommend that you use the second floor layouts of our two-story plans that are similar in size to your existing home. For example, you can use the second floor of our Whately 1 two-story plan if you want to create a three bedroom plan with a vaulted foyer over a one-story that is 28′ x 44′. Keep in mind that you will likely need our help to customize your second-story modular house addition plans to match your existing home.

You can take any of our modular home addition plans and change them in small and big ways to make them look as if they were always part of your existing home. You can adjust the roof pitch of your prefab addition plans to fit in with your existing house, and you can dress up the exterior features of your modular addition plans with matching siding and fancy moldings.

Finally, you can also change the exterior or interior appearance of any of our modular house addition plans by changing the size, location, or quantity of any of the following:

Study, office, or computer room

First floor master bedroom

Media or hobby room

Bonus room over a family room or garage

Laundry room

Master bath suite

Garage

Porch

Walk-in closet

Pantry closet

Extra storage space

Larger rooms or more open floor plan

Taller ceilings – tray, cathedral, and vault

Fireplaces

Walk-out bays

Windows – circle tops, transoms, and palladium

Kitchen cabinets

Working island bar with raised breakfast counter

Dual bath vanities

Whirlpool bath

Roof pitch

Dormers

Decorative exterior window and door moldings

Wet bar

French doors

Skylights

Built-in bookshelves or entertainment center

U-shaped stairs

The Home Store has many other modular addition home plans in addition to those shown on our website. If none of our modular addition house plans work for you, we will help you design and build the custom modular house addition plans of your dreams. Our extensive experience in the design and construction of modular home addition plans enables us to create uniquely attractive homes – homes with quality, style, and distinction. For more information about what type of plan will best meet your needs, click here or call us 800-974-1266 ext. 13 or 413-665-1266 ext. 13.

The Home Store Has a Range of Modular Home Addition Plans for In-Law, ECHO, Attached, and Second-Story Modular Houses.