Home Addition Cost Calculator
Answer just a few quick questions to get a ballpark estimate for your project.
This tool gives you an idea of what a new addition could cost based on size, finish level, and key features. For a detailed proposal, schedule a free consultation with our team.
Get a Ballpark Figure For Your Home Addition Budget
Home Addition Cost FAQs
1. How accurate is the Home Addition Cost Calculator?
Our calculator provides a ballpark estimate based on size, finishes, and features. Actual costs depend on site conditions, permits, utility tie-ins, and design preferences. For an exact quote, we recommend a free in-home consultation.
2. What factors influence the cost of a home addition the most?
The biggest factors are the square footage, type of room (bedroom vs. kitchen vs. in-law suite), finish level, and whether plumbing or major structural changes are required.
3. What is the average cost per square foot for a home addition in New Jersey?
In New Jersey, home additions typically range from $200–$400 per square foot, depending on the complexity and finishes. Bathrooms and kitchens are on the higher end because of plumbing and fixtures.
4. Do permits and inspections add to the cost?
Yes. Local building permits, inspections, and engineering fees usually add 5–10% to the total cost. Our team handles permitting so you don’t have to.
5. How long does it take to build a home addition?
A small bedroom or office addition may take 2–3 months, while larger in-law suites or kitchen expansions can take 4–6 months from design through final inspection.
6. Is a home addition worth the investment?
Yes. A well-designed addition not only gives you more living space but also increases your home’s resale value. In-law suites and kitchens typically provide the highest return on investment.
7. Can I finance a home addition?
Many homeowners choose financing options such as home equity loans, HELOCs, or renovation loans. Our team can help guide you toward lenders familiar with construction projects.
8. Do you build custom in-law suites?
Absolutely. In-law suites are one of our specialties. They often include a bedroom, bathroom, small kitchenette, and separate entrance for privacy and comfort.
9. Will an addition blend in with my existing home?
Yes. We design additions to match your home’s style, roofline, and finishes so they look seamless and not “tacked on.”
10. How do I get started after using the calculator?
Once you have a ballpark estimate, the next step is to schedule a consultation with our team. We’ll visit your property, refine the scope, and provide a detailed proposal.
Book Your Free Consultation
No pushy sales. No cookie-cutter solutions. Just a conversation about your goals and a clear plan to make it happen. Fill out our short form or give us a call to schedule your free, no-pressure consultation.