What We Do
Expand Your Home
An addition is one of the highest-ROI projects a Bergen County homeowner can undertake. Done right, it blends seamlessly with your existing structure, increases your usable square footage, and adds significant resale value — all without sacrificing the neighborhood and school district you've already chosen.
Dadak LLC manages the full process: structural engineering, architectural plans, zoning compliance, permit filing, and construction. We handle every trade so you have one conversation, not ten.
Second-Story Additions Most Popular
The most common addition in Bergen County for homeowners who have maximized their footprint but need more bedrooms, a primary suite, or a family room. Typically 12–18 months from consultation to move-in, including planning and permitting.
Room Additions
A single-story bump-out or new room attached to the existing footprint. Common for expanded kitchens, sunrooms, home offices, and in-law suites. Faster to permit and build than a full second story.
Garage Additions
Attached or detached garage builds, including garage-to-living-space conversions where zoning allows. We coordinate all electrical, insulation, and access requirements.
Finished Basements
Convert unfinished basement space into legal, permitted living area. We assess waterproofing, handle egress window requirements, and coordinate mechanical work to create a space that functions as real square footage.
Outdoor Living Spaces
Covered patios, outdoor kitchens, pergolas, decks, and hardscaping. We extend the usable area of your home beyond its walls with spaces built to Bergen County's climate and permit requirements.
Zoning compliance review and setback analysis
Structural engineering and architectural plan coordination
Full permit filing with Bergen County and local municipality
Seamless integration with existing structure and finishes
Common Questions
Additions FAQ
What's the most popular type of addition in Bergen County?
Second-story additions are by far the most common addition we build in Bergen County. Most homeowners in towns like Park Ridge, Hillsdale, and River Vale are on established lots with little room to expand outward — but the vertical space is available. A second story typically adds one to three bedrooms, a primary suite, or a family room while keeping the existing footprint and landscape intact. It's also often more cost-effective per square foot than a lateral room addition, which requires foundation work.
How long does a second-story addition take?
From initial consultation to final certificate of occupancy, a second-story addition typically takes 12–18 months. Planning and permitting — including architectural drawings, structural engineering, and municipal review — can account for 3–6 months of that timeline depending on the municipality. Actual construction runs 6–10 months. We build a complete project schedule before breaking ground so you know exactly what to expect at every stage.
Do you need an architect for a home addition in NJ?
In most cases, yes. NJ building permits for structural additions require stamped architectural and structural engineering drawings. We coordinate licensed architects and engineers as part of our process — you don't need to source them independently. The design is coordinated around your vision and budget before plans are drafted, so you're not paying to revise drawings after the fact.
How much does a home addition cost in NJ?
Home addition costs in Bergen County vary significantly based on type and scope. A single room addition typically starts around $150,000–$250,000. A full second-story addition on an existing ranch commonly runs $300,000–$600,000+ depending on the size, finishes, and complexity of the structural work. Outdoor living spaces like covered patios and pergolas start around $50,000. We provide detailed, line-item estimates during the consultation phase — no ballpark ranges that leave you guessing.
Start Here
Let's Figure Out What You Can Build
The first step is a free consultation where we review your property, zoning, and what you're trying to accomplish. No obligation — just an honest conversation about what's possible.