Home Additions and Extensions in Franklin Square

Need more room but love where you live? Get the space your family needs from a family owned design and build team trusted by Franklin Square homeowners since 1979.

Franklin Square is the kind of neighborhood where people put down roots - close to Hempstead Turnpike, easy access to the city, and a community where neighbors know each other by name. When your family outgrows the house, the last thing you want to do is walk away from all of that. Home additions and home extensions let you stay in the neighborhood you chose while building the space your family actually needs. Whether that means a ground-floor bedroom for a parent moving in, a kitchen that fits your whole family at once, or a dormer that makes the upper floor livable, Gibraltar Home Improvements brings more than 40 years of experience to every project. Our additions are designed by hands-on construction specialists and award-winning kitchen and bath designers, then built by craftsmen who treat your home with the care it deserves.

Outgrowing Your House? Why Home Additions in Franklin Square Often Make More Sense Than Moving

In Franklin Square, a lot of families reach a turning point quietly. First the dining room table doubles as a homework station and workspace. Then the kids are sharing a room well past the point anyone is comfortable with it. A parent needs to move closer, and suddenly there is nowhere logical to put them. The house that once worked starts holding the family back.


Plenty of Franklin Square homeowners think about picking up and buying somewhere else, but the math rarely adds up. Between agent fees, closing costs, moving expenses, and the reality of today's Nassau County housing market, you can spend a tremendous amount just to land in a house someone else designed. And after all of it, the new place may still fall short in exactly the ways that mattered.


A home addition reframes the whole decision. Instead of compromising on a floor plan in a neighborhood you don't know, you invest in the home you already own on the block you already love. Families in Franklin Square have found that building onto their existing home lets them keep the commute, the school district, and the community ties - while finally getting a layout that actually fits how they live.

Popular Types of Home Additions and Home Extensions in Franklin Square

Every home addition in Franklin Square starts with a practical question: which direction can your home grow? Your lot size, the placement of your existing structure, Nassau County zoning regulations, and your intended use all shape the answer. Some properties have room to expand toward the yard. Others are better suited to going up. Getting clarity on those constraints early keeps the project on track.

  • Ground level room extensions: Extend your living room, primary bedroom, or kitchen outward to create open, connected space that flows naturally into the yard.
  • Bump-outs: A targeted expansion of just a few feet can transform a tight Franklin Square kitchen into one that actually works, or give a cramped bathroom real breathing room.
  • Second story additions: When the lot leaves no room to spread out, building up is the answer - though it requires structural evaluation and thoughtful architectural planning.
  • Dormers: Raise a section of the roofline to bring in natural light, gain headroom, and unlock usable square footage on upper floors.
  • Kitchen and bathroom expansions: Give the two rooms your family depends on most the layout, storage, and space they have always needed.
  • Multigenerational living space: Build a private, comfortable bedroom and bath on the main level for an aging parent, a returning adult child, or long-term guests who need their own space.

What You Get When Gibraltar Builds Your Home Addition in Franklin Square

A home addition in Franklin Square is one of the larger investments you will make in your property, and the process deserves a team that is straightforward with you at every stage. Here is what working with Gibraltar Home Improvements looks like:

  • A free, no-obligation estimate and a genuine conversation about your goals, your home's current layout, and what you are hoping to achieve.
  • A complete in-house design team including experienced construction designers, award-winning kitchen and bathroom specialists, and home exterior professionals - all under one roof.
  • A clear visual preview before any work begins through our state-of-the-art design visualizer, so you can compare options and feel confident in your choices.
  • Hands-on product selection at our 8,000 square foot design and build showroom, where you pick what you want rather than choosing from a limited factory catalog.
  • Flexible construction methods including stick framing, modular construction, or a system build that combines the strengths of both.
  • Custom architectural accents such as porches, patios, decks, single and double reverse gables, turrets, skirt roofs, and layovers to make the addition look like it was always part of the original home.
  • A dedicated project team assigned from start to finish, with designers, installers, and service technicians reachable by phone, email, or text.
  • A dedicated service and warranty department standing behind the work long after the project is complete.

Stick Built, Modular, or Both: A Smarter Way to Build Home Extensions in Franklin Square

Home extensions in Franklin Square can be built in two primary ways. Stick framing is assembled piece by piece on site, which allows for complete design flexibility and works well on lots with unusual shapes or constraints. Modular construction is prefabricated off site in controlled sections, which speeds up the build timeline and can reduce costs.


Gibraltar works with both methods, and that flexibility opens up a third option called a system build. A system build combines modular efficiency with the custom detailing of stick framing. The result is an addition that does not look tacked on. Instead, it picks up the architectural character of your existing Franklin Square home and carries it naturally into the new space - matching rooflines, proportions, and exterior details so the whole house reads as one.


Gibraltar also handles roofing, siding, windows, kitchens, and bathrooms, which means the same team managing your addition can ensure everything ties together inside and out. There is no hand-off between contractors and no gap in accountability - just one experienced crew taking responsibility for the full picture.

Planning a Home Addition in Franklin Square: Permits, Zoning, and Design Requirements

Home extensions in Franklin Square involve more planning than most people expect going in, and knowing what is ahead of time makes the whole process smoother. Nassau County has specific requirements that govern what gets built, how it gets reviewed, and what documents are needed before a single wall goes up.


Building permits are required for home additions throughout Nassau County, and Franklin Square projects typically need construction plans reviewed and stamped by a licensed architect or professional engineer. Local zoning rules - including setback requirements that define how close a structure can sit to property lines - determine how far your home can expand outward or upward. These rules often shape which type of addition makes the most sense for your specific lot. Second story additions bring an additional layer of review, since the existing foundation and framing must be evaluated to confirm they can carry the added load.


Mechanical systems need attention too. A new bedroom, bathroom, or kitchen addition in Franklin Square may require updates to your HVAC, electrical panel, or plumbing to keep everything running properly across the expanded footprint. Gibraltar walks you through all of it from the first consultation onward, so nothing comes as a surprise mid-project.

What Determines the Cost of Home Additions in Franklin Square?

Pricing for home additions in Franklin Square varies because every project is genuinely different. The lot, the home's existing structure, the room type, and the finishes all pull the number in different directions. A few of the main factors that shape the investment:

  • Size and square footage of the new space
  • Single story versus multi-story construction, since building up adds structural framing, engineering review, and roofing complexity
  • Room type, as kitchens and bathrooms carry plumbing, electrical, and ventilation costs that other rooms do not
  • Design complexity and custom architectural features
  • Construction method, whether stick built, modular, or a system build
  • Finishes and materials including flooring, cabinetry, fixtures, windows, and siding
  • Permitting, engineering fees, and site conditions specific to your Franklin Square property

It is also smart to hold back a contingency fund - typically 10 to 15 percent of your total budget - to cover anything unexpected that surfaces once walls are opened. Older homes in Franklin Square sometimes reveal structural or utility conditions that were not visible at the start. Gibraltar also offers financing through a third-party lender, with monthly payment options that make it easier to move forward now rather than waiting.

Why Franklin Square Homeowners Trust Gibraltar With Their Home Extensions

  • More than 40 years of experience: Family owned and operated since 1979, with a track record built home by home across Long Island.
  • Recognized for excellence: Honored as Best Home Contractor / Repair / Remodeling Company from 2022 through 2024.
  • Licensed, insured, and bonded for your complete peace of mind.
  • Specialists in every facet of home renovation, from structural construction to kitchens, bathrooms, roofing, siding, and windows.
  • One team for the entire project, so you are not juggling separate contractors for the addition, the interior work, and the exterior finish.
  • A simple promise: Our family business has run on the motto "We're here to help" since day one, and our team stays reachable throughout the entire project.

The Benefits of a Home Addition in Franklin Square Last Long After Construction Ends

The impact of a well-built home extension shows up in the ordinary moments. In Franklin Square, that might mean mornings that stop feeling like a scramble because there is finally enough room to move. It might mean a dedicated workspace where you can actually close a door. It might mean a holiday gathering that fits everyone comfortably, or a parent who has a dignified, private space to call their own.


A home addition that is designed with care and built to match the character of your Franklin Square home can also strengthen your property's long-term value in a market where well-maintained homes hold their worth. Every situation is different, but the immediate return is clear from the first day you use the space: a home that keeps pace with your life instead of one you eventually have to leave behind.

Start Planning Your Franklin Square Home Addition With Gibraltar

Your next chapter does not have to begin with a moving truck. Talk with the experts at Gibraltar Home Improvements about the space your family needs and the best way to build it. Call 516.408.2500 or 718.846.2200, or contact us online to schedule your free, no-obligation estimate.

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Home Additions and Extensions Franklin Square FAQs

  • What is the difference between a home addition and a home extension?

    The terms home addition and home extension are often used interchangeably, and both describe adding new living space to an existing house. In everyday use, a home extension usually refers to expanding an existing room or footprint outward, such as pushing a kitchen or family room into the backyard. A home addition is a broader term that can include extensions as well as entirely new rooms, second stories, dormers, and multigenerational living spaces. What matters most is not the label but the goal: creating functional, well-designed space that connects naturally to the rest of your home. During your consultation, Gibraltar’s design team can help you compare options based on your property, your budget, and how you want to use the new space.

  • Do I need a permit to build a home addition?

    In most cases, yes. Home additions typically require a building permit from your local building department because they change the structure, footprint, or systems of your home. Many municipalities also require construction plans stamped by a registered architect or professional engineer, along with compliance with local zoning and setback rules that limit how far a home can expand outward or upward. Additions that include new plumbing, electrical work, or heating and cooling often involve additional reviews and inspections. Skipping proper permits can create problems when selling your home or filing an insurance claim, so it is important to work with an experienced home additions contractor who understands the planning process and keeps your project moving through each step.

  • How long does it take to build a home addition?

    The timeline for a home addition depends on the size and complexity of the project, the type of construction, permitting and approval times, and the finishes you select. A small bump-out generally moves faster than a full second story addition, which requires structural evaluation, engineering, and roofing work. Kitchens and bathrooms also take longer than bedrooms or living rooms because of the plumbing, electrical, and fixture installation involved. Construction method plays a role as well, since modular construction can offer speed advantages over building entirely on site. Gibraltar can combine modular and stick framed methods in a system build to balance efficiency with custom design. Your estimate and consultation are the best way to get a realistic picture of the timeline for your specific home extension.

  • Will a home addition increase the value of my home?

    A well-planned home addition can add value to your home, especially when it increases functional living space such as bedrooms, bathrooms, or an expanded kitchen. However, the exact return varies based on your local real estate market, the quality of the construction, the type of addition, and how well the new space blends with the original home. Additions that look like an afterthought or disrupt the flow of a floor plan may not deliver the same value as those designed to feel like part of the original structure. That is why Gibraltar involves construction designers, kitchen and bathroom designers, and exterior professionals in the planning process, helping your home extension look and function as if it was always there.

  • Can I finance a home addition?

    Yes, financing is available for many home addition projects. Gibraltar Home Improvements offers financing options through a third-party lender, featuring a simple application process, fast credit decisions, unsecured revolving credit lines, promotional financing options, and convenient monthly payments. Financing can help homeowners move forward with a home addition now rather than waiting years to save, which is especially valuable when a growing family, a work from home setup, or a parent moving in makes the need for space urgent. Financing terms and approval are determined by the lender, so the best first step is to schedule your free estimate and ask our team about the options available for your project.

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I contracted Gibraltar Home Improvements to do my sidewalk, walkway and stairs. I am very happy with the results. The craftsmen on the job were experianced and professional. The finishing of the cement and stone work is excellent. Job was started and completed faster than expected.

BMA Shogun

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Gilbrator made all my visions come true! They renovated my bathroom and kitchen in a timely manner. The foreman on our job was Al he was very professional and knowledgeable. I would definitely use their services for any future renovations. Their prices for the renovations were excellent!

Tanya Rubio

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Had a great experience with this company. Everyone who came to work on my home was professional, helpful and reliable. Gil was able to walk us through the entire process and helped us visualize how we could transform our home. Their work is fantastic!

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