Single & Double Storey House Extensions in Glasgow
Fast, Reliable & Fully Qualified Local Engineers
If you’re looking to create more space in your home without the stress of moving, a single or double storey house extension could be the perfect solution. At RMK, we design and build high-quality house extensions across Glasgow and Renfrewshire, helping homeowners add value, comfort, and functionality to their properties.
Whether you’re planning a rear extension to create a larger kitchen-diner, a side extension to add a utility room, or a double storey extension to gain extra bedrooms and bathrooms, our experienced team manages the full project from start to finish. We handle everything from initial design ideas and planning support through to construction, structural work, and final finishes.
With years of experience delivering house extensions in Glasgow, we understand local planning requirements, property styles, and building regulations – ensuring your project runs smoothly and is completed to the highest standard..
WHAT we OFFER
Single Storey House Extensions in Glasgow
Single storey extensions are one of the most popular home improvement projects for homeowners across Glasgow. They’re ideal for extending kitchens, creating open-plan living spaces, adding dining areas, or building additional living rooms that connect your home to the garden.
A well-designed single storey extension can completely transform how your home feels and functions. Whether you’re looking for a modern rear extension with bi-fold doors or a more traditional side extension that blends seamlessly with your property, RMK can design and build a solution that suits your lifestyle and budget.
We take care of:
- Groundworks and foundations
- Structural alterations and steelwork (RSJs)
- Brickwork, roofing, and insulation
- Windows, doors, and glazing
- Full internal fit-out and finishing
Every single storey extension is tailored to the property and the homeowner’s goals, ensuring the new space feels like a natural part of your home.
Double Storey House Extensions in Glasgow
If you need significantly more space, a double storey extension can be a cost-effective way to add multiple rooms to your home. Many homeowners across Glasgow choose double storey extensions to add extra bedrooms, bathrooms, home offices, or larger family living areas.
A double storey extension allows you to increase both your ground floor living space and your upstairs accommodation, making it ideal for growing families or those planning to stay in their home long-term. RMK designs and builds double storey extensions that complement the existing property and comply fully with local planning and building regulations.
Our team manages all aspects of your double storey extension, including:
- Structural design and load-bearing calculations
- Planning and building control support
- Full construction and project management
- Roofing integration and weatherproofing
- Internal layout changes and finishing work
We work closely with you to ensure your new extension not only looks great but also adds long-term value to your property.
WHAT we OFFER
How it works
Rear, Side & Wraparound Extensions
Every home is different, which is why we offer a range of extension styles across Glasgow and Renfrewshire. RMK builds:
Rear Extensions
Rear extensions are ideal for creating open-plan kitchens, dining areas, or larger living spaces that flow into the garden.
Side Extensions
Side extensions work well for adding utility rooms, additional living space, or expanding existing rooms where side access allows.
Wraparound Extensions
A combination of rear and side extensions, wraparounds maximise space and dramatically change the layout of a home.
Double-Storey Extensions
For those needing significant extra space, double-storey extensions provide additional bedrooms, bathrooms, or home offices.
Planning Permission & Building Regulations in Glasgow
Not all house extensions require planning permission, but many do – particularly double storey extensions or properties located within conservation areas. RMK can guide you through the planning process and advise whether your project falls under permitted development rights or requires full planning approval from the local authority.
We ensure every single and double storey house extension in Glasgow is designed and built in line with local planning policies, current building regulations, structural safety requirements, and modern insulation and energy efficiency standards. This gives you complete peace of mind that your extension is compliant, built correctly, and finished to a high standard that will stand the test of time.
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Frequently Asked Questions
How much does a single or double storey house extension cost in Glasgow?
The cost of a single or double storey house extension in Glasgow depends on the size of the extension, the complexity of the design, ground conditions, and the level of finishes you choose. Single storey extensions are usually more affordable, while double storey extensions cost more but provide better value per square metre. RMK provides clear, detailed quotes so you know exactly what to expect before work begins.
Do I need planning permission for a single or double storey extension in Glasgow?
Some single storey extensions may fall under permitted development, but double storey extensions usually require planning permission. Rules can vary depending on the size of the extension, your property type, and whether your home is in a conservation area. RMK can assess your property in Glasgow and advise whether planning approval is required before starting work.
How long does it take to build a single or double storey extension?
The build time for a single storey extension in Glasgow is typically shorter and can take several weeks, while a double storey extension usually takes longer due to additional structural work and planning requirements. Timescales depend on the size and complexity of the project, weather conditions, and access to the property. RMK provides realistic timelines at the planning stage.
Will a house extension add value to my property in Glasgow?
A well-designed single or double storey house extension in Glasgow can significantly increase the value of your home by adding extra living space, bedrooms, or open-plan areas that are in high demand. Extensions often provide a strong return on investment while allowing you to stay in the home and area you already love.
