Tower ANSWER BLOCK (40–60 words)
Tower Builder Group LLC builds home additions across NYC's five boroughs and Nassau County — rear extensions, dormers, second-story additions, and garage conversions. We coordinate architectural plans, DOB permits, foundation, framing, and finishes under one licensed contractor. Free consultations: 646-552-0335.
What We Build
- Rear and side extensions
- Full and shed dormers
- Second-story additions
- Garage and basement conversions
- Enclosed porches and sunrooms
- Foundation work and structural steel for all of the above
THE PART NOBODY TELLS YOU: THE ADDITION IS THE EASY HALF
Zoning, FAR limits, setbacks, DOB filings, inspections — in NYC, the paperwork can outlast the framing. We work with architects and expediters daily on our commercial projects, and we bring that same permit machinery to your addition.
- Feasibility first. Before you spend on plans, we tell you what zoning realistically allows on your lot.
- One accountable contractor. Plans, permits, construction, inspections — one phone number.
- Your house stays livable. We weatherproof and secure the structure at every stage.
How It Works
- Feasibility consult — what your lot and zoning allow.
- Plans & filing — architect drawings, DOB permits.
- Foundation & structure — excavation, footings, framing, roof.
- Weathertight, then interiors — windows, roofing, then electric, plumbing, finishes.
- Inspections & sign-off — closed out properly so it never haunts a future sale.
Final Cta
Find out what your lot allows — before you spend a dollar on drawings.
Call 646-552-0335 for a free feasibility consultation.
Frequently Asked Questions
How long does an addition take?
Plan on 2–4 months of permitting and 3–5 months of construction for a typical extension or dormer. We give you a written schedule for both phases.
Do I need an architect?
Yes — additions require sealed drawings filed with the DOB. We work with architects regularly and can bring one to your project.
Will an addition add value to my home?
In most NYC and Nassau neighborhoods, added legal square footage is among the highest-value improvements you can make. Legal is the key word — which is why we close out every permit.
Can you match my existing brick or siding?
Yes. Matching existing masonry is core to our work — see our masonry page.
What does an addition cost?
It varies with size, foundation conditions, and finishes. The feasibility consult is free, and the estimate that follows is written and line-itemed.