Affordable, High-Quality Home Extensions and Additions – Expand Your Living Space Today

Discover the ultimate solution for increasing your current living space without having to buy or move into a new house with our affordable, high-quality home extensions and additions.

Has your family outgrown your current living space? We specialize in designing and building custom home extensions that blend seamlessly with your existing property, giving you more room and creating a harmonious living environment for you and your loved ones.

Modern Home Additions By Florian Sunrooms – Enhance Your Property's Functionality and Value

Looking to increase your property's value or improve its marketability? Our modern home additions can do just that. Florian Sunrooms' team of architects and builders works closely with you to design and build custom home extensions that not only meet your needs but also elevate your home's curb appeal and potential value.

Why Choose Us?

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Experienced Professionals

Our team of licensed design experts and skilled craftsmen have years of experience in the home renovation industry.
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Quality Craftsmanship

We take pride in ensuring that every project is completed to the highest standards, right down to the smallest detail.
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Transparent Pricing

We provide accurate, full quotes with no hidden fees, so you know exactly what to expect & how to budget.
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Customer Satisfaction

Your satisfaction is our top priority, and we'll work tirelessly to exceed your expectations.

Florian Sunrooms – Modern Custom Home Extension Experts


Our Custom Home Extension Process

We know that renovations to your home can be stressful. That's why we've developed a streamlined process to make it as easy as possible for you. Here's how it works:
Consultation: We meet with you for an initial consultation to discuss your needs and goals for a custom home extension or addition.
Design: Our professional design experts create a custom design that meets your needs, complies with all regulations, & fits your style.
Construction: We get to work on constructing your modern home addition as soon as you approve the design.
Walk-Through: We do a final walk-through with you to ensure that your custom home extension is perfect and you're completely satisfied with the results.


We’re committed to providing transparent pricing and ensuring that everyone is on the same page in every aspect of a custom home extension. We provide all of our clients with detailed, accurate estimates before starting any work so they know exactly what to expect. We also offer financing options to make it easier to afford the modern home addition of your dreams.

Custom Home Extension and Addition Services We Offer:

Solariums, sunrooms and greenhouses

Kitchen and bathroom extensions

Bedroom and home office additions

Loft conversions


Garage conversions

Story additions


"Florian Sunrooms transformed our outdated kitchen into a beautiful, modern space that we love to show off. Their team was professional, efficient, and easy to work with. We couldn't be happier with the results."
Jordan Lawal
"The workmanship of the project was done in a very professional manner. Attention to details met all our expectation. The crew was very knowledgeable of the installation of this product. We are entirely satisfied & happy with the final results." 
Lisa and Tom Newman

Get Started on Your Dream Home Extension or Addition Today

Don't let space constraints hold you back from enjoying the home you've always wanted. Contact our team of experts for a free consultation, and let us bring your vision to life with our exceptional modern home addition and custom home extension services.

FAQs about Modern Home Additions and Extensions

What does extension to a building mean?

An extension to a building refers to the addition of extra space or an expansion of an existing structure. It often involves increasing the footprint of a building or creating new sections that seamlessly integrate with the original structure.

Building extensions can include adding additional floors, expanding existing rooms, constructing new wings or annexes, or creating separate structures connected to the main building.

The reason for a home extension is usually to provide more space, accommodate growing family needs, and increase the functionality and value of a space. Extensions are done in residential, commercial, and institutional buildings.

Is a renovation the same as an extension?

Renovation is the updating, repairing, or restoring of an existing structure. It usually involves improving the functionality and/or aesthetics of a space. Renovations can range from minor changes like painting and replacing fixtures to more complex projects like kitchen or bathroom remodels.

On the other hand, an extension involves increasing the size or footprint of a home by adding new space. This can include adding extra rooms, expanding existing rooms, or building entirely new sections to a home. Extensions are usually done to create more living space, like adding bedrooms, expanding a kitchen, or creating a home office.

Both renovations and extensions can enhance the value and livability of a home, but they entail different scopes of work and involve unique considerations.

Our experienced team can help you consider and plan for your specific goals and needs before deciding between a renovation or a custom home extension.

What are additions to a building?

An addition refers to expanding the overall area of a building. These improvements include lateral extensions, which are added to the sides or rear of an existing structure, and vertical expansions constructed on top of a building.

Enclosures can also be created beneath a structure.

What is the difference between additions and improvements?

Additions are basically extensions of a pre-existing structure that increase its functional space. On the other hand, improvements and upgrades focus on enhancing an existing space or system. Examples of improvements include installing skylights, upgrading to hardwood floors, remodeling a bathroom, and installing a new HVAC system.

What is it called when you redesign a building?

When you redesign a building, it is often referred to as a building renovation or a building redesign. This involves making significant changes to the layout, structure, or appearance of the existing building. It may include changing the interior space, renovating the exterior façade, or rearranging the building's systems.

Building redesigns are done to improve functionality, change the aesthetics, or adapt the structure to meet new requirements. Whether it's a complete overhaul or targeted upgrades, a building redesign can transform an existing home or office to better suit the needs and preferences of the people inside it.

Do builders design extensions?

Builders in the Greater Toronto Area (GTA) generally focus on the construction of building projects rather than the design. Builders may have some basic design knowledge, but their primary expertise is in executing construction plans and bringing them to life.

For designing custom home extensions in the GTA, it's best to involve professionals like architects, architectural designers, or building designers who specialize in designing functional and fashionable extensions that meet building codes, zoning regulations, and the specific needs of the homeowner.

At Florian Sunrooms, we are a team of licensed, expert designers and builders that collaborate with you every step of the way to ensure your custom home extension is properly planned, structurally sound, up to code, and meets your style preferences.

Is it cheaper to extend or build up?

Whether it's cheaper to extend a home or build up depends on several factors, including the unique circumstances of the property and the scope of the project.

Generally speaking, building up by adding floors to an existing home tends to be more expensive than extending outward. Building up involves additional structural considerations, like reinforcing the foundation, adding staircases or elevators, and integrating with existing systems like plumbing and electrical.

On the other hand, extending outward can have its own cost considerations as well, as it may involve excavation, additional foundation work, and connecting new spaces to existing systems.

The only way to know for sure is to reach out to us so we can assess your property, discuss your needs, and find the most cost-effective approach to achieving your goals.

Can you build an extension without permission?

Building an extension without permission can be a violation of local building regulations and permits. In the Greater Toronto Area, like many other jurisdictions, getting the necessary permits and authorizations is usually required before starting any major construction project, including custom home extensions.

These permits ensure that the home extension meets safety standards, zoning regulations, and other local requirements.

At Florian Sunrooms, we are constantly working with local municipalities in Southern Ontario, know their specific regulations, and get the appropriate permits for your custom home extension. That way, you won't have to worry about legal consequences, fines, or being required to remove an unauthorized extension.

Can you build an extension without an architect?

In some cases, it may be possible to build a small home extension without the direct involvement of an architect, depending on your municipality's regulations and the size of the project. However, it is still advisable to consult with a licensed design professional to ensure compliance with building codes, zoning regulations, and structural considerations.

That's why, at Florian Sunrooms, we have professional architects and building designers on staff; they ensure that all necessary permits are obtained and help you create a well-designed and functional extension that meets your specific style and needs while complying with all local regulations.

What is the definition of an extension for a house?

An extension for a house typically refers to adding extra space or rooms to an existing home. It involves expanding the footprint of a home by constructing new areas that blend seamlessly with the existing structure.

Common types of custom home extensions in the GTA can include adding bedrooms, expanding the kitchen or living area, constructing a home office or study, or creating a new family room.

Florian Sunrooms' custom home extensions cost-effectively provide more living space and accommodate your changing needs while maintaining the overall design and integrity of your home.

What is the cost of additions?

The cost of a home addition in the Greater Toronto Area (GTA) can vary depending on factors such as the size and complexity of the project, the materials used, the level of finishes, and your specific location.

The average cost of home additions in the GTA can range from around $200 to $400 per square foot. However, it's important to note that these are rough estimates, and prices fluctuate over time.

That's why it's always best to get detailed quotes. At Florian, we assess your specific project needs and provide accurate cost estimates based on current market conditions.

What is the most common home addition?

One of the most common types of additions in the Greater Toronto Area (GTA) is adding extra living space, particularly adding bedrooms or expanding the kitchen and living areas. Other common examples include adding or extending bathrooms, adding a sunroom, and converting a garage.

With the rising cost of housing and the need for more space, many homeowners opt for modern home additions that provide practical and functional living areas.

When done by experienced professionals like Florian Sunrooms, adding a bedroom or expanding the kitchen and living spaces accommodates your growing family, creates dedicated workspaces, and enhances the overall comfort, value, and functionality of your home.

What is the meaning of home addition?

A modern home addition refers to expanding or adding extra space to an existing residential property. It involves creating new areas that seamlessly integrate with your existing home, increasing its overall living space and comfort and can enhance the functionality and value of your home.

What is it called when you redo the inside of a house?

When you redo the inside of a house, it's usually referred to as an interior renovation or an interior remodel.

This process involves making significant changes that transform the interior spaces of a home to update the design, improve functionality, or change the overall look and feel.

Interior renovations can include a wide range of improvements such as painting, flooring replacement, updating fixtures and finishes, rearranging room layouts, modifying walls or ceilings, upgrading appliances, and more.

How long does it take to build an extension?

The time to build a custom home extension can vary depending on several factors, including the size and complexity of the project, the availability of materials, weather conditions, and the efficiency of the construction professionals.

Generally, smaller and straightforward extensions can take around 2 to 4 months to complete, while larger and more intricate projects can take 6 months or longer. Please note that getting necessary permits, finalizing design plans, and any unforeseen challenges during construction can potentially extend a timeline.

Reach out to us to get a more accurate estimate for your specific project, and we'll provide a more precise timeline based on our 15 years of construction expertise, our streamlined custom home extension process, and our knowledge of local requirements.

Is it worth putting an extension on my house?

Determining the financial worth of investing in a custom extension for your home depends on various factors, including current market conditions, the cost of the extension, and the potential increase in your property's value.

In general, a well-planned and well-executed extension has the potential to increase the value of a property. By adding extra living space and improving the overall functionality of a house, a modern home addition can make it more appealing to buyers and potentially result in a higher sale price.

However, if your goal is to increase your property value, you must do a cost-benefit analysis and consult with real estate and construction professionals to assess the potential return on investment before proceeding with any home improvement project.

It's also worth noting that while a custom home extension can add value to your property, the main reason for completing a modern home addition or improvement project should be to enhance your enjoyment in your current living space and to meet your family's specific needs.

Get a hassle-free & no obligation consultation today from experts in the industry with over 17 years of experience.
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