Home Addition Cost in Charleston, South Carolina ()
Home addition cost in Charleston, South Carolina ranges from $119 to $238 per square foot. Standard grade construction is represented by the lower end of this range and premium grade construction is represented by the upper end of this range. Luxury grade construction could be as much as twice the cost of the upper end of this range. To get a more accurate cost for your home addition project, request a quote. Please note that if you use our matching service, we may be compensated.
Topics Covered in this Guide: Home Addition Cost | Home Addition Cost Factors | Frequently Asked Questions | Related Cost Guides | Find Home Addition Contractors
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How Much Does Home Addition Cost in Charleston, SC?
Home addition cost in Charleston, South Carolina ranges from $119 to $238 per square foot. Standard grade construction is represented by the lower end of this range and premium grade construction is represented by the upper end of this range. Luxury grade construction could be as much as twice the cost of the upper end of this range. Consult with a contractor to discuss the pros and cons of different construction grades.
This guide is intended to provide you an approximate home addition cost in Charleston, SC. To get a quote for your specific project, request a free estimate. Our research, although general in nature, does include feedback provided by home addition contractors and research conducted by the HomeBlue staff.
House addition cost based on the size of the addition:
- 12x12 addition cost (144-sf): $17,000 to $34,000.
- 20x20 addition cost (400-sf): $48,000 to $95,000.
- 20x30 addition cost (600-sf): $71,000 to $143,000.
- 20x40 addition cost (800-sf): $95,000 to $190,000.
- 25x40 addition cost (1,000-sf): $119,000 to $238,000.
- Note: The lower end of these ranges represents standard grade construction and the upper end represents premium grade.
- Note: Luxury grade construction in high cost areas could be as much as double the upper end of these ranges.
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Factors that Influence House Addition Cost in Charleston
When addition contractors come to provide you an estimate, they will consider several factors that can increase or decrease the cost of your project. Pricing for your home addition project will vary based on the quality of construction you choose. Here are a few things to keep in mind when you get quotes from house addition contractors:
Your prices may be higher when:
- You want premium or luxury grade construction.
- The addition requires a foundation.
- The property is historic and requires special approvals.
- The house is occupied.
- A basement needs to be dug.
- The site has a significant slope or is rocky.
- The property is in a hard to reach location (more travel time).
- The property is in a high cost area.
Your prices may be lower when:
- You want standard grade construction.
- No foundation is required.
- The house is vacant.
- The addition does not have a basement (it is constructed on-grade).
- The property is easily accessible (less travel time).
- The property is in a lower cost.
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Home Addition FAQs
Here are a few frequently asked questions related to home addition construction:
You can find home addition contractors in Charleston by 1) asking a neighbor for a referral, 2) searching for “home addition contractors” in your favorite search engine, 3) using a traditional paper directory resource (yellow pages), 4) looking for ads on your local TV station, 5) using an online matching service.
In general, hiring an architect or designer to prepare construction documents is likely necessary. The structural elements of the building will need to be designed and stamped by a licensed structural engineer. If you need to do foundation work, you may also need a civil engineer to make sure the site is properly graded. You can ask your builder if they could assist you with the design process (ie: do the project using a design/build approach) or whether they would prefer you hire an architect separately to prepare drawings. Either way, the final design documents will then need to be submitted to your local permit office for approval.
Building a home or an addition requires a contractor’s license in most localities. However, many localities provide exemptions when property owners choose to serve as the general contractor for a property that they own. You will need to research your local laws. For instance, here is a link to a Florida statute addressing owner-builder exemptions. There are pros and cons relating to serving as an owner-builder. For instance, you will assume many of the responsibilities and liabilities associated with the project.
It is highly likely that you will need a building permit to build a home addition. Discuss the permit process with the contractors you are considering for the project. A seasoned and reputable contractor should be comfortable and willing to help guide you through the process or willing to handle the task as part of their contract.
20x20 room addition cost in Charleston ranges from $48,000 to $95,000 depending on the grade of construction used. Standard grade will be at the lower end of this range and Premium grade will be at the upper end of this range. To get a more accurate cost for your specific project, request a quote from a local contractor.
12x12 room addition cost in Charleston ranges from $17,000 to $34,000 depending on the grade of construction used (standard is at the bottom end of this range and premium grade is at the top end of this range). To get a more accurate cost for your room addition project, request a quote from a local contractor.
The cost to add a second story in Charleston ranges from $119 to $238 per square foot depending on the grade of construction used (standard is at the lower end of this range and premium grade is at the upper end of this range). To get a more accurate cost, request a quote from a local contractor.
Related Cost Guides
We have researched several other closely related projects. If one of these projects better represents the type of project you are undertaking, please check out the appropriate guide:
- Building a new house? Home Building Cost Guide for Charleston, SC
- Building a barndominium? Barndominium Cost Guide for Charleston, SC
- Remodeling a bathroom? Bathroom Remodeling Cost Guide for Charleston, SC
- Remodeling a kitchen? Kitchen Remodeling Cost Guide for Charleston, SC
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Local Home Addition Contractors Near Charleston, SC
The following are a few contractors in your area. Note that these companies have not been screened or vetted by HomeBlue. Please conduct proper due diligence prior to hiring these or any other company you may select.
Commonwealth Contracting, LLC When choosing a home remodeling or construction company, it’s critical to select a contractor whose work delights you. Someone whom you trust and who stands behind everything they do. Someone who knows from experience how to do the job right. We take homes that people love, but which don’t suit their current needs and do major structural and aesthetic remodeling in order to make their existing home into their dream home.
O'Connor Homes There comes a point where you either decide that you have outgrown your home and you should move on, or that it’s worth it to renovate your existing home by adding additional space. Major renovations come with their own set of challenges, because you have to try to reconfigure and work with what is there. It takes a skilled contractor to know how to handle the complexities that come with reworking an existing floor plan or adding space. The team at O’Connor Homes has grown in size and skill to address all remodel and new construction needs.
New Age Contractors LLP Many homeowners dream about remodeling their house and transforming it into their own custom space. Finding the right contractor can be difficult, however which is why New Age Contractors is here to help with expert home remodeling services. We can handle all your remodeling needs, including bathrooms, kitchens, additions, conversions, and more. Our experienced professionals will work with you to design the perfect space for your needs and give you a custom plan a that is exactly what you've envisioned.
Charleston Remodeling Inc Charleston Remodeling, Inc. was founded in 1986 by Mark H Welborn. We are a full service Remodeling company that is licensed, bonded, and insured. We cover a range of projects that include home improvements, room additions, whole house renovations, kitchen and bathroom remodeling, structural repairs, and new construction. Charleston Remodeling, Inc is well established in the Charleston area and is ready to meet your project needs.
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Related Pages
- How to get home addition price quotes
- How to get matched to home addition contractors
- Home Addition Cost Guide
- Home Addition Cost in Charleston, WV