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5 Types of Home Additions to Add More Space

Updated: Nov 3, 2023



1. Conventional Home Addition


A conventional home addition is a multi-room structure that is built into your existing home. This type of home addition can include great rooms, dining rooms, bathrooms, family rooms, guest bedrooms, or even master suites. Sometimes this can also involve adding a second kitchen or kitchenette. Conventional home additions are generally involved and costly projects. On the other hand, adding livable space offers a great return-on-investment. By adding square footage and usable space, your resale home value will increase significantly.



2. Room Addition


Room additions are exactly what the name implies. It simply means building a single room onto your home with a specific type of space in mind. This can be done by redesigning the layout of your existing interior walls, or expanding the existing space by attaching a single room attachment to the exterior of your home.




The possibilities are endless when it comes to the kind of space you can add. Some examples include:

  • Home gym

  • Home office

  • Family room

  • Game room or theater room

  • Guest room

  • Master bathroom



3. Sunroom Addition

Sunrooms, are indoor/outdoor spaces that seamlessly blend your home’s interior with the patio, porch, deck, or backyard. They’re designed to allow maximum amount of daylight and landscape views in an enclosed space that protects you and your furniture from the outside conditions. A sunroom addition is a great option if you want to optimize your outdoor living space, add usable indoor space, and add a one-of-a-kind feature to your home.


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4. Conversion Addition


If lot space is limited or you don’t want to lose a portion of your front- or backyard to build an addition, a conversion addition is the way to go. An unfinished attic space or basement, are ideal for conversion additions. Another option is transforming a garage it into a usable area of home.



Unfinished areas and garages aren’t included in the square footage calculation when purchasing a home, therefore a conversion addition adds to overall size and resale value of your home.


Examples of conversion addition:

  • Remodeling a basement to turn it into a family room, home gym, home office, or entertainment room

  • Remodel an attic to act as a bedroom or guest room

  • Convert a garage into a livable space




5. ADU or Guesthouse Addition


Accessory dwelling units (ADUs) are additional residential units added to an existing home. An ADU may be an addition attached to a home or exist as a detached independent unit. One of the advantages of building a guesthouse is the unlimited choices in style and building materials. Wether your grown kids or friends come to visit on a regular basis, or an elderly relative needs their own space in close proximity to you, an ADU or guesthouse addition is a great option.


Adding an ADU addition or guesthouse is an involved project that involves adding at least a bedroom, bathroom, and kitchen or kitchenette, so it’s important to plan well and work with an experienced general contractor.




What is the Best Home Addition Type For you


When deciding on the type of home addition, several factors should be considered. What the space will be used for and available budget are a good starting point. Another consideration is the location of your home and the building permit regulations involved. Recent developments made building a home addition in Chicago IL more accessible. While the regulations for home additions in the suburbs of Chicago have similar conditions, each municipality differs

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