Full-Service Building Extensions & Additions in NYC & Tri-State
Kitchen Extensions
Transform your home’s heart with a bright, modern kitchen extension built for style and easy entertaining.
Loft Conversions
Maximize your space with a loft conversion—add comfort, value, and style without expanding your footprint.
Rear & Side Additions
Expand your living space with stylish rear or side extensions, perfect for family rooms or open-plan areas.
Building Extensions & Additions
KRS Pros designs and constructs building extensions, roof decks, and vertical additions throughout NYC and the Tri‑State area. Our team evaluates zoning constraints, set‑backs, and DOB requirements before preparing structural designs and permit packages. We coordinate with architects, professional engineers, and preservation consultants when needed.
Construction includes foundation or roof reinforcement, structural steel framing, waterproofing and decking systems, and integration of stairs, egress, and mechanical systems. We manage DOB filings, inspections, and certificate of occupancy processes.
Our Building Extension Services
Feasibility, Zoning & DOB Coordination
We assess zoning laws, setbacks, and DOB regulations to determine project viability and prepare compliant permit packages.
Structural Design & Professional Engineering
Certified engineers design reinforcement plans, steel framing, and load-bearing upgrades for safe expansions.
Roof Deck Construction & Waterproofing
Premium decking systems with full waterproofing, drainage, and safety railings for long-lasting rooftop spaces.
Vertical Additions & Stair/Elevator Integration
Seamless vertical expansions with new floors, internal stairs, and elevator shafts fully integrated into existing structures.
Permitting, Inspections & Occupancy
End-to-end DOB management: filings, inspections, sign-offs, and certificate of occupancy issuance.
