Undertaking a whole-home renovation in Westchester County is one of the most effective ways to elevate your living space, adapt your house to your family’s needs, and maximize long-term property value. From restoring the charm of pre-war homes in Bronxville to adding modern amenities in Scarsdale, Rye, or Larchmont, a comprehensive renovation brings traditional layouts up to today’s lifestyle standards.
This guide outlines typical 2026 costs by trade, explains permits and professional fees, and includes a sample budget for a 1,500 sq. ft. full home renovation in Westchester County.
Key insights: Westchester home renovation costs
- Most whole-home renovations in Westchester now fall between $190–$465 per sq. ft., depending on the quality of finishes, property size, and whether additions or exterior work are included.
- Projects often blend interior upgrades (kitchens, bathrooms, flooring, systems) with exterior improvements (roofing, siding, driveways, and outdoor living).
- Each town has its own building department — approvals in Scarsdale or Harrison may differ from those in Larchmont, Rye, or Bronxville.
- Additions, garage conversions, and outdoor enhancements remain popular ways to expand living space and boost curb appeal.
- Partnering with a design-build contractor like Chapter ensures architectural planning, permitting, and construction are seamlessly managed from start to finish.
Cost Breakdown by Trade
Demolition
Framing & structural carpentry
Plumbing
- $1,500–$2,900 per fixture to replace.
- $10,000–$18,000+ for full piping upgrades.
Electrical
- $5,500–$12,000 per floor for rewiring.
- $16,000–$24,000+ for full home service upgrades.
Heating & cooling
- $15,000–$30,000 for central forced-air systems.
- $3,800–$6,500 per ductless mini-split zone.
Roofing
- Architectural shingles: $8–$12 per sq. ft.
- Standing seam metal: $14–$22 per sq. ft.
Siding
- Vinyl: $9–$14 per sq. ft.
- Fiber cement (Hardie): $12–$20 per sq. ft.
- Cedar or natural wood: $15–$24 per sq. ft.
Windows & exterior doors
- Windows: $900–$1,800 each.
- Entry doors: $2,500–$5,800.
Driveways
- Asphalt: $8–$14 per sq. ft.
- Concrete: $12–$18 per sq. ft.
- Pavers: $22–$30 per sq. ft.
Garage doors & conversions
- Standard replacement door: $3,500–$6,500.
- Premium/custom insulated: $7,000–$12,000.
- Converting to livable space: $30,000–$70,000 depending on insulation, HVAC, and finishes.
Flooring
- Hardwood: $15–$24 per sq. ft. installed.
- Tile: $22–$40 per sq. ft. installed.
Stone & tile work
- Kitchens/bathrooms: $25–$50 per sq. ft.
- Natural stone upgrades: $60–$115 per sq. ft.
Painting
- Interior: $7–$11 per sq. ft.
- Exterior: $5–$8 per sq. ft.
Decks & outdoor living
- Pressure-treated lumber: $40–$60 per sq. ft.
- Composite: $70–$100 per sq. ft.
- Custom outdoor kitchens/patios: $30,000–$75,000+.
Landscaping
- Simple refresh: $8,000–$20,000.
- Full property landscaping with patios and planting: $40,000–$120,000+.
Basement finishing
- $50,000–$120,000 depending on scope and finishes.
Cabinetry & Built-ins
- Kitchen cabinets: $900–$2,400+ per linear ft.
- Custom millwork: $7,000–$35,000+.
Professional & permit costs in Westchester
- Architectural drawings: $8,000–$18,000+ (depending on scope and whether additions are included).
- Interior design: $5,000–$12,000.
- Engineering (structural, foundation): $3,000–$8,500.
- Municipal permits: $3,500–$9,000 depending on town.
- HOA/community approvals (if applicable): $700–$2,800.
Sample budget for a 1,500 sq. ft. full home renovation
FAQs about full home renovations in Westchester
Do I need permits for a full home renovation?
Yes. Every town in Westchester has its own building department with distinct requirements for structural, plumbing, electrical, and exterior work. For example, municipalities such as Scarsdale, Rye, and Bronxville often require additional Architectural Review Board (ARB) or Planning Board approvals before work can begin. Permits typically cover all major scopes, including electrical service upgrades, plumbing relocations, roofing, siding, additions, and driveways. Chapter manages this entire process, from preparing construction drawings and applications to coordinating inspections and final sign-offs, ensuring your renovation meets all local regulations.
Can I add an extension or garage conversion?
Yes, additions and garage conversions are very popular in Westchester, where many homes were built decades ago and often have unused potential. Homeowners frequently expand to add primary suites, family rooms, home offices, or in-law suites, or convert garages into finished spaces.
Before starting, most towns require zoning and setback review to ensure the new footprint complies with property limits. Chapter’s in-house design and construction teams handle both the planning and permitting phases, helping you maximize square footage while maintaining architectural integrity and neighborhood aesthetics.
How long does a full renovation usually take?
Most full home renovations in Westchester take 8 to 13 months from design to completion, depending on the scope, customization level, and permitting timeline of your specific town.
Projects that involve structural work, additions, or historic properties typically take longer. Chapter’s design-build process streamlines this timeline by running design, engineering, and pre-construction tasks simultaneously, minimizing downtime between phases and keeping your project on track.
What’s the biggest driver of cost?
The largest cost drivers in Westchester renovations are typically cabinetry, custom millwork, and major exterior systems such as roofing, siding, and windows. Structural reconfigurations, additions, and premium materials like stone and imported tile can also significantly influence the final budget.
At Chapter, we provide detailed line-item proposals during the early stages of planning so you can see exactly where your budget is being allocated. Our designers also help value-engineer finishes when needed to stay within your goals without sacrificing quality or design intent.
Will a full renovation increase resale value?
Yes. A well-executed renovation in Westchester almost always enhances resale value and marketability. In high-demand areas like Scarsdale, Rye, Bronxville, Larchmont, and Harrison, updated kitchens, bathrooms, and modernized layouts can yield a strong return on investment and help homes sell faster.
Buyers in these markets prioritize turnkey properties with updated systems, open layouts, and timeless finishes. Chapter’s design-build approach ensures your renovation is not only functional and beautiful but also adds measurable value to your property.
Start your Westchester home renovation with Chapter
A full home renovation is a major investment, and you need a partner who can handle every detail. Chapter’s design-build approach combines architects, designers, engineers, and builders into one cohesive team, ensuring efficiency and accountability from concept to completion.
Our RenotechTM Client Portal keeps you fully informed with live updates on budget, schedule, and progress, providing complete peace of mind throughout the renovation process.
If you’re looking for quality, transparency, and a stress-free experience, Chapter is the partner you can rely on.