Updated June 2026
Basement Apartment / In-Law Suite · Tenafly, NJ
Plan and build a code-compliant basement apartment or in-law suite in Tenafly. We focus on practical layouts, egress, and permit coordination.
We convert unfinished or underused basements into rentable apartments or accessible in-law suites that meet Bergen County codes. Work includes framing, insulation, drywall, flooring, kitchens, bathrooms, mechanical updates for code-required ventilation and egress, and permit-ready drawings. Projects prioritize safe exits, moisture control, and clear separation between living spaces.
Our work
FAQ
Cost depends on size, required mechanical upgrades, egress work, finishes, and whether you add a full kitchen or bathroom. We provide a written estimate after a site walkthrough so you can compare scope and trade-offs.
Typical projects run from several weeks to a few months depending on permits and scope. Renovations with new bathrooms or kitchens and permit work usually take longer; we'll give a timeline with milestones during the estimate.
Most basement apartments require electrical, plumbing, and building permits plus inspections for egress, fire separation, and mechanical systems. We handle permit paperwork and coordinate inspections with Tenafly building officials.
Interior work creates noise, dust, and periodic shutoffs of utilities. Many homeowners remain in the house but plan for restricted access to work areas; we stage work to limit disruption and discuss living arrangements during the walkthrough.
Schedule a site visit for a walkthrough and on-site estimate. We inspect the basement, confirm egress and utilities, discuss finishes, and provide a written proposal and timeline.
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
Edison, NJ
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 Tenafly home, walk the space, take measurements, and put a written scope together on-site. About 45-60 minutes.
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Tenafly, 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 Tenafly 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 Tenafly, NJ.
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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.
