At All Access Builders, we specialize in creating beautiful, functional, and lasting home additions across Buffalo and Erie County. Whether you’re looking to expand your living space with a new room, add a garage, build a second story, or construct an accessory dwelling unit (ADU), we are the state-licensed and insured general contractor you can rely on. As your general contractor, we take responsibility for the day-to-day oversight of every construction site, coordinated management of all vendors and trades, and direct communication with you throughout every phase of your home addition project.
These two terms are often used interchangeably, but they describe fundamentally different scopes of work — and the distinction matters for permitting, structural engineering, zoning compliance, and budget planning in Buffalo and Erie County.
A home addition increases your home’s total square footage by adding new physical space that did not previously exist. This means new foundation work, new framing, new roofline integration, and new exterior envelope — all of which require permits, inspections, and often zoning review from the City of Buffalo or Erie County. Types of home additions All Access Builders builds:
A home renovation reconfigures, updates, or improves space that already exists within your home’s current footprint — without adding new square footage. Kitchen remodels, bathroom renovations, basement finishing, and whole-home updates are all renovations. If you’re interested in renovating existing space rather than adding new space, visit our home remodeling page for the full scope of what we offer.
Why the distinction matters: Additions require a different permitting path, structural analysis, and zoning review than renovations. Knowing which type of project you need at the start helps All Access Builders give you an accurate written estimate and realistic timeline from the first consultation.
Adding space to your home is one of the best investments you can make in the Buffalo market — enhancing both your daily comfort and your property’s long-term value. Whether you need extra bedrooms, a larger living area, a garage, or an ADU, All Access Builders offers full-service home additions that transform your space across Buffalo and Erie County. Our design-build approach includes in-house design, materials, permits, and construction to ensure a seamless process from concept to occupancy.
All Access Builders handles home addition projects of all sizes — from single-room bump-outs to full second-story additions. Our expert team works with you every step of the way to ensure your vision becomes a reality across Buffalo and Erie County.
Create more livable space with expertly designed room additions that enhance comfort and functionality — perfect for expanding your home without the hassle of moving. Whether you need a new bedroom, a family room, a home office, or a sunroom, All Access Builders manages the full scope: foundation, framing, roofline integration, exterior envelope, insulation, windows, and interior finish work. Every room addition in Buffalo is designed to match your existing home’s architecture and built to perform in Erie County’s climate.
Add extra storage or transform your property with a new attached or detached garage tailored to your needs. From single-car garages to oversized two-car builds with workshop or storage space, All Access Builders manages the complete design-build process — foundation, framing, roofing, siding, electrical rough-in, and doors. All garage additions in Buffalo include permit pulling and inspection scheduling through the City of Buffalo Department of Permit and Inspection Services.
Maximize your home’s square footage by adding a second story — more bedrooms, bathrooms, and living space without losing valuable yard space in Buffalo’s residential neighborhoods. Second-story additions require structural engineering to verify that existing first-floor walls, beams, and foundation can support the added load — All Access Builders coordinates all required structural analysis as part of the design-build process.
An ADU — sometimes called an in-law suite, granny flat, or accessory apartment — is a self-contained living unit added to your property either as an attached addition or a separate accessory structure. ADUs are subject to specific zoning regulations in the City of Buffalo and Erie County municipalities. All Access Builders navigates the full ADU approval process: zoning verification, variance applications if required, permit submission, structural engineering, and construction — delivering a complete, code-compliant ADU ready for occupancy.
A bump-out extends an existing room by 2–15 feet — enough to meaningfully transform a cramped kitchen, dining room, or master bedroom without the full cost and complexity of a room addition. Bump-outs may or may not require a full foundation depending on depth and structural configuration. All Access Builders assesses the appropriate structural approach during your free consultation and provides a detailed written estimate covering all options.
Buffalo’s freeze-thaw cycles, lake-effect snow loads, and humidity demand home additions that are both structurally sound and energy-efficient. At All Access Builders, we ensure every home addition in Buffalo and Erie County is built to last with materials and construction practices that stand up to the harshest weather conditions.
Home additions in Buffalo and Erie County involve more steps than most homeowners expect — zoning review, structural engineering, permit submission, inspections, and construction sequencing all happen before your addition is ready for occupancy. As your general contractor, All Access Builders manages every step. Here’s exactly what the process looks like:
An ADU — sometimes called an in-law suite, granny flat, or accessory apartment — is a self-contained living unit added to your property either as an attached addition or a separate accessory structure. ADUs are subject to specific zoning regulations in the City of Buffalo and Erie County municipalities. All Access Builders navigates the full ADU approval process: zoning verification, variance applications if required, permit submission, structural engineering, and construction — delivering a complete, code-compliant ADU ready for occupancy.
Before designing your addition, All Access Builders verifies zoning compliance with the City of Buffalo Office of Zoning or the applicable Erie County municipality. Key zoning factors for Buffalo home additions include:
ADU-specific regulations — the City of Buffalo has adopted specific ADU regulations governing size, occupancy, owner-occupancy requirements, and parking. All Access Builders review current ADU regulations for your specific parcel before proceeding.
If your addition requires a variance — permission to build beyond standard zoning limits — All Access Builders prepares and submits the variance application to the City of Buffalo Zoning Board of Appeals or applicable Erie County body. Variance timelines vary but typically add 6–12 weeks to the pre-construction phase.
Once zoning compliance is confirmed, All Access Builders develops the additional design and coordinates structural engineering review. Structural engineering is required for:
All Access Builders works with licensed structural engineers to produce stamped drawings required for permit submission in Buffalo and Erie County. This phase typically takes 3–6 weeks depending on project complexity.
All Access Builders submits complete permit applications to the City of Buffalo Department of Permit and Inspection Services — including architectural drawings, structural engineering documents, and energy compliance calculations. All Access Builders pulls all permits as the licensed general contractor of record.
Permit timelines in Buffalo vary by project type:
Read our full Buffalo building permit guide for home renovations and additions for complete details on the permit process.
All Access Builders schedules the final inspection with the City of Buffalo, obtains the certificate of occupancy, and conducts a complete final walkthrough with you before considering the project complete. Both your manufacturer material warranty and All Access Builders workmanship warranty are reviewed and provided in writing at final walkthrough.
| Addition Type | Pre-Construction | Construction | Total Typical Range |
|---|---|---|---|
| Bump-out addition | 4–8 weeks | 4–8 weeks | 2–4 months |
| Room addition | 6–12 weeks | 8–16 weeks | 3–6 months |
| Garage addition | 4–8 weeks | 6–10 weeks | 2–4 months |
| Second-story addition | 10–18 weeks | 12–20 weeks | 5–9 months |
| ADU | 12–20 weeks | 12–24 weeks | 6–11 months |
Timelines vary based on permit approval speed, weather conditions, material lead times, and project complexity. All Access Builders provide a target start date, construction duration, and contingency plan in every written estimate so you have a clear picture before work begins. For cost guidance, see our full guide on home addition costs in Western New York.
We believe in transparency and trust throughout every phase of your home addition project in Buffalo and Erie County. Here’s how we work:
We discuss your goals, assess your property on-site, and evaluate zoning, structural, and permit requirements — at no cost.
You receive a detailed written estimate covering design, materials, permit costs, construction scope, and project timeline — with transparent pricing and no hidden fees.
All Access Builders handles all permit applications, structural engineering coordination, and zoning compliance — you never have to navigate City Hall yourself.
Our in-house crews handle structural work, exterior envelope, and interior finishes, with day-to-day site oversight and coordinated management of all trades ensuring efficiency and quality.
We review every detail of the completed addition with you, obtain your certificate of occupancy, and confirm your workmanship and material warranties in writing before we consider the job done.
With over 22 years in business and a commitment to craftsmanship, All Access Builders is Buffalo’s trusted general contractor for home additions across Erie County. We take pride in delivering results on time and on budget, ensuring every project meets our high standards.
All Access Builders is Buffalo and Erie County’s trusted home addition contractor, providing expert general contracting services throughout the City of Buffalo and Western New York — including Amherst, Cheektowaga, Tonawanda, West Seneca, Orchard Park, and Clarence. Whether you’re in the heart of the city or in a nearby suburb, our in-house team is ready to transform your home with high-quality, lasting additions.
Ready to expand your home? All Access Builders responds quickly and offers transparent communication throughout the entire process. As a state-licensed and insured general contractor serving Buffalo and Erie County, we provide a detailed written estimate, handle all permits and engineering, and back every addition with workmanship and material warranties. Contact us today to schedule a free consultation and bring your vision to life.
A home addition expands your home’s total square footage by adding new physical space — new foundation, framing, roofline, and exterior envelope. A home renovation reconfigures existing space within your current footprint. Additions require permits, structural engineering, and often zoning review in Buffalo and Erie County. For renovation projects like kitchen or bathroom remodels, visit our home remodeling page.
All Access Builders builds room additions, garage additions, second-story additions, ADUs (accessory dwelling units), and bump-out additions across Buffalo and Erie County. Our full-service design-build handles zoning review, structural engineering, permits, construction, and final inspection — all under one general contractor.
Timelines vary by addition type. A bump-out or garage addition typically takes 2–4 months from concept to occupancy including permit approval. A room addition takes 3–6 months. A second-story addition takes 5–9 months. An ADU takes 6–11 months. All Access Builders provides a target start date, construction duration, and contingency plan in every written estimate. See our full guide on home addition costs and timelines in Western New York.
Yes. All home additions in the City of Buffalo require permits from the Buffalo Department of Permit and Inspection Services. Second-story additions and ADUs also require structural engineering drawings and may require zoning board review. All Access Builders handles all permitting as part of our general contracting process. Read our full Buffalo building permit guide for additions and renovations.
Key zoning factors for Buffalo home additions include setback requirements from property lines (typically 3–10 feet on sides, 20–30 feet at rear), lot coverage limits, building height restrictions, and ADU-specific regulations. If your addition requires a variance, All Access Builders prepares and submits the application to the City of Buffalo Zoning Board of Appeals. Variance approval typically adds 6–12 weeks to the pre-construction timeline.
Yes. All Access Builders designs and builds accessory dwelling units — in-law suites, accessory apartments, and detached accessory structures — across Buffalo and Erie County. We manage the full ADU process: zoning verification, variance applications if required, permit submission, structural engineering, and complete construction to certificate of occupancy.
Home addition costs in Western New York vary significantly by addition type, size, and finish level. All Access Builders provides detailed written estimates with transparent pricing on every project. For general cost guidance, read our full guide on home addition costs in Western New York.
All Access Builders provides two separate warranties on every home addition: a manufacturer material warranty covering all installed products (windows, roofing, siding, flooring) and a contractor workmanship warranty covering the installation itself. Both are provided in writing at final walkthrough. Read our full guide on materials vs. workmanship warranties explained.
Yes. Second-story additions require structural engineering to verify that existing walls, beams, and foundation can support the added load. All Access Builders coordinates all required structural analysis, permit submission, and construction — managing the complete design-build process from concept to certificate of occupancy in Buffalo and Erie County.
