Basement Design + Build
Getting real value out of an existing house is what Darien does well, and the basement is usually the biggest untapped piece of it. The town's core housing stock went up in the 70s, 80s, and 90s, solid family homes where the basement is either still original concrete or wearing a finish from decades ago. Either way, that lower level is space you already own, already heat, and already pay taxes on. Finishing or remodeling it is almost always cheaper per square foot than adding on.
Darien projects tend to be practical and family-driven, and we quote them that way. A typical build pairs a big family room with a dedicated kids or game zone, adds a full bathroom so the floor works for guests and sleepovers, and keeps smart storage instead of losing it. For the dated finished basements, we rebuild to modern standards: drywall ceilings, recessed lighting, durable flooring, and corrected insulation and wiring where the original work cut corners. Nothing exotic, just space that finally earns its keep.
The numbers stay transparent from the first meeting. ONIT Restoration starts with a free in-home design consultation, then delivers an itemized quote that prices each room and each scope decision separately, so you can trim or expand with real information. Our office handles permits, crews are licensed and insured, and typical builds run 6 to 12 weeks depending on scope. Financing is available on larger projects. We are based in Willow Springs, a short drive from anywhere in Darien.
Every project begins with a free in-home design consultation. We measure your basement, check moisture and mechanicals, listen to how you want to use the space, and come back with a design and an itemized quote. No pressure, no expiring discounts, just a real plan with real numbers.
Almost always, and by a wide margin. The foundation, slab, roof, and exterior walls already exist, so your budget goes toward livable finishes instead of structure. An addition also brings excavation, exterior work, and longer timelines. For most Darien homes, the basement is the most cost-effective square footage you can add to your living space.
We look before we answer. Sound framing and workable layouts can often stay, which saves real money, while dated ceilings, worn flooring, and undersized wiring typically go. The free consultation sorts one from the other, and your itemized quote shows demolition, corrections, and new finishes separately so the remodel decision is grounded in numbers.
Yes. Homes from this era usually lack a rough-in, so we cut the slab and run new drain lines, which is routine work we price clearly as its own line. A full bathroom is one of the most requested additions here because it makes the whole lower level function for guests, teenagers, and family gatherings.
Tell us about your basement and we will follow up within one business day to set up an in-home visit.