Home Additions & Expansions That Add Comfort and Value

When your home needs an upgrade, a thoughtfully planned addition is a smart investment. We are a design-build firm specializing in seamless home expansions, bringing construction intelligence to the design phase to ensure your new space is a perfect fit for your home.

Creative, design-focused solutions for seamless home expansions

Accurate budgeting and clear construction timelines

Expert handling of structural challenges and compliance

Tailored additions that maximize space and home value

617-515-0005

Expand Your Home with Genesis Construction & Development

Your home needs to evolve with your life. When you need more space, whether for a growing family, a home office, or a private suite, a well-planned addition can be a smarter investment than moving. At Genesis Construction & Development, we specialize in seamless, high-quality expansions that blend with your existing home and lifestyle. We manage the entire process and ensure full compliance with the latest regulations, including Massachusetts’ 10th Edition State Building Code, so your addition meets today’s standards for safety, energy efficiency, and structural integrity.

617-515-0005

Schedule Your Design Consultation

Our Process

At Genesis Construction & Development, we believe that exceptional results come from a clear, collaborative, and well-managed process. Whether you're building a custom home, expanding an existing property, or developing a large-scale project, we guide you every step of the way with precision, transparency, and professionalism.

Here’s what you can expect when working with us:

Initial Consultation

Every project begins with a conversation. We take the time to understand your vision, goals, budget, and timeline. This is where we answer your questions, discuss your ideas, and assess the feasibility of your project.

Site Visit & Evaluation

We visit your site to evaluate the land, existing structures (if applicable), and any challenges or opportunities. This allows us to provide tailored recommendations and plan accurately from the start.

Planning & Design Collaboration

We collaborate with architects, designers, and engineers to bring your vision to life. Whether you're starting from plans or need help developing them, we ensure the design reflects your needs, style, and investment goals.

Budgeting & Proposal

We provide a detailed project estimate with transparent pricing and clear breakdowns. This includes construction costs, materials, timelines, and options to align with your budget without compromising quality.

Permitting & Pre-Construction

We manage all permitting and approvals required by local authorities. During this stage, we finalize schedules, order materials, and prepare the site for construction.

Construction Begins

With everything in place, construction starts. Our experienced team handles every phase with precision, from foundation to final finishes. You’ll receive regular updates, progress photos, and milestone walkthroughs.

Quality Control & Final Walkthrough

As we near completion, we conduct detailed quality checks and inspections. Together, we’ll do a final walkthrough to ensure every detail meets your expectations.

Project Handover & Ongoing Support

We hand over the keys with confidence, and remain available for any questions or support you need post-completion. Your satisfaction is our priority, long after the build is complete.

More Than an Addition: A Thoughtfully Designed Extension of Your Life

A home addition should solve real problems and improve how you live, not just add space. Too often, designs that look great on paper fall apart in the field. We prevent that by bringing construction insight into the design phase from day one. The result is a plan that is not only beautiful but also buildable, on time, and on budget.

Your Partner in Problem-Solving

We start by understanding your space challenges, whether it's a cramped kitchen, the need for a quiet office, or a multigenerational suite. We design to fit your lifestyle and the rules. In many Massachusetts communities, accessory dwelling units (ADUs) up to 900 square feet or 50 percent of your home's size can be added without a special permit. We help you navigate these options and ensure your plan is the right one for your goals.

The Genesis Design-Build Advantage

With Genesis Construction & Development, you get a single, accountable partner from the first sketch to the final walkthrough. Our team builds faster than the typical four- to six-month timeline without cutting corners. Integrated planning and consistent communication mean fewer delays, smarter decisions, and a smoother process. You stay focused on your life while we handle the rest.

Our Home Addition & Expansion Services

We specialize in a range of custom home additions, each designed and built with meticulous attention to detail and a deep understanding of Massachusetts architecture. Our expertise ensures your new space feels like it was always part of your home.

Second-Story Additions

For growing families who love their neighborhood but need more bedrooms, a second-story addition is the ideal solution. We manage the complex structural and zoning requirements to add significant living space without sacrificing your yard.

Kitchen & Family Room Expansions

Create the open-concept heart of your home. We expand and reconfigure kitchens and family rooms to improve flow, function, and natural light, creating inviting spaces for daily life and entertaining.

Master Suite Additions

Design a private, luxurious retreat. From spacious walk-in closets and spa-like bathrooms to serene sitting areas, we create master suites that serve as a true escape within your own home.

In-Law Suites & ADUs (Accessory Dwelling Units)

We are experienced in building functional and private living spaces for multi-generational families or as flexible-use units. Our team navigates the specific zoning and design considerations for ADUs in communities like Andover, Reading, and Lexington.

Sunrooms & Four-Season Rooms

Connect your indoor and outdoor living with a beautifully designed sunroom. We build spaces engineered for New England weather, allowing you to enjoy the view and natural light comfortably all year round.

Garage Expansions & Conversions

Whether you need more vehicle storage, a dedicated workshop, or want to add a finished living area or home office above your garage, we design and build structurally sound and fully integrated expansions.

Why Choose Us

Genesis Construction and Development Inc. starts every project with a comprehensive blueprint that aligns design, construction, and cost. This upfront clarity minimizes surprises, streamlines decision-making, and sets the tone for a well-managed build.

Meticulous upfront planning that reduces rework, change orders, and delays

Expert navigation of zoning, permitting, and code compliance across Essex and Middlesex counties

Full project oversight from early design to final walkthrough

Trusted by homeowners, architects, and investors for consistent results

Choosing us means choosing one of the top general contractors in the region—committed to quality, transparency, and long-term value.

Featured Projects

See What We’ve Built Together

Every project starts with a conversation and is shaped by our client’s goals. We bring structure, foresight, and clear communication to each step of the process. Our portfolio reflects not just what we build, but how we build, with consistency, care, and lasting results. As a seasoned building construction company, we understand what it takes to deliver value and craftsmanship at every scale.

Frequently asked questions

Do I need planning permission for an extension?

Most home extensions in North Shore, MA, require planning permission if they exceed specific size or height limits, alter the existing structure significantly, or impact neighboring properties. Always check with your local building authority to confirm regulations before starting your project.

Do I need an architect to draw up plans for an extension?

While it’s not legally required to hire an architect, working with one ensures accurate plans that meet building codes. Architects can also help optimize design and functionality, which can prevent costly mistakes during construction.

Is it cheaper to build a house or add an addition?

Adding an extension is typically more cost-effective than building a new home because it leverages the existing foundation, structure, and utility connections. In Massachusetts, home additions currently cost between $350 and $450 per square foot, depending on the design complexity and materials. While additions are generally less expensive, large or multi-story expansions can approach the cost of new construction.

What's the biggest extension you can have without planning permission?

In most cases, you can build a single-story extension within size limits set by local zoning regulations—typically a modest increase in square footage. Check North Shore’s zoning rules to ensure compliance before starting work.

Can you draw your own house plans without an architect?

Yes, you can draw your own house plans, especially for small projects. However, they must meet local building codes and be clear enough for contractors to follow. Professional assistance is recommended for larger or complex designs.

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