Updated May 2026
Basement Apartment / In-Law Suite · Roselle Park, NJ
We design and build code-compliant basement apartments and in-law suites in Union County. Request a consultation to review egress, layouts, and finishes.
We focus on interior remodeling to convert basements into legal apartments or in-law suites: egress windows and doors, framed walls, insulation, drywall, flooring, kitchens, bathrooms, lighting, and mechanical routing. We coordinate with your architect or local permit office to meet New Jersey code and Union County inspection requirements.
Our work
FAQ
Costs vary by size, egress work, and finishes. Basic builds start with framing, insulation, bathroom, kitchen, and systems upgrades; structural changes or extensive egress work raise costs. We provide a written estimate after an on-site walkthrough to quantify your property-specific scope.
Most interior conversions take 8–14 weeks after permits are issued. Timeline depends on permit lead time, scope of mechanical work, and finish selections. We include a projected schedule with the estimate.
Yes. Basement apartments and in-law suites require local permits and inspections for egress, plumbing, electrical, and fire safety. We coordinate permit submissions and work with inspectors to meet Roselle Park requirements.
Yes. Most work is confined to the lower level, but expect noise, dust, and intermittent access for plumbers and electricians. We plan phases to keep disruption limited and provide a project schedule during the estimate.
Request a consultation and on-site walkthrough. We inspect egress, measure, discuss finishes, and deliver a written estimate and schedule for your basement apartment / in-law suite Roselle Park NJ project.
Real basement apartment / in-law suite projects in New Jersey homes — same room, before we started and after we finished. Move the handle.
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Edison basement recreation room with game zones
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Reviews
“I highly recommend Home Concept Construction. This was truly the best construction company I’ve ever worked with in my lifetime. Their team was professional, reliable, and incredibly efficient from start to finish. They are men of their word—honest, hardworking, and committed to delivering quality results. Whether i…”
monique venable
6 months ago
“Oscar and his team are expert craftsmen. Our kitchen renovation is so beautiful the house looks like a new build. They came when said they would and returned all calls promptly. I highly recommend Home Concepts construction and will be using them again for other projects.”
Donna G
a year ago
“Oscar and his team are second to none. Their work is of high quality, with precision. The team renovated our kitchen and family room, installed engineered hardwood floors throughout our home, painted plus some. They are extremely professional, flexible and accommodating. Oscar is a creative thinker and designed g…”
Audrey Sudran
a year ago
Verified reviews from Home Concepts Construction’s Google Business Profile. Read all reviews on Google →
Schedule
Pick a day and time that works for you. We come to your Roselle Park home, walk the space, take measurements, and put a written scope together on-site. About 45-60 minutes.
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Roselle Park, NJ
Free in-home walkthrough. Written scope before you commit. One team from demolition to final inspection.
Get a free quote
Tell us a little about the project and we'll get back within one business day with real answers about how it would go in a Roselle Park home.
Free in-home visit
We come to you. Measure, plan, and quote on-site.
Licensed in NJ
NJ HIC #13VH10078600
Real response
Within one business day.
See more from Basement Apartment / In-Law Suite or learn about remodeling in Roselle Park, NJ.
Nearby towns
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No pressure, no obligation. We’ll walk through what’s worth doing first, what can wait, and what to watch out for — before anyone talks contracts.
