
House Extensions
in Dorset
Blue C Ltd: Add Form, Function & Tons of Usable Space With a Perfectly Executed Property Extension

Looking to expand your living space with a high-quality extension? Blue C Ltd is a local builder specialising in house extensions, here to help Dorset homeowners, landlords and developers create practical and stylish additional space. Based in Portland, Weymouth, all our home extensions are expertly crafted and carefully tailored to your needs. Whether you’re looking for a traditional rear or side extension, kitchen extension, loft conversion or garage conversion, our team is ready to bring your vision to life.
With over 25 years of experience under its belt, Blue C Ltd has built a reputation for high-quality craftsmanship and providing a seamless, professional service, whether tackling house extensions, property refurbishments or hard landscaping projects. Our team is fully CDM compliant, holds First Aid, CSCS and SMSTS accreditation, and is Safe Contractor Approved. No project is too big or small for us, and we provide nationwide coverage for high-value projects while maintaining a strong local presence in Dorset.

Types of House Extensions We Carry Out
Blue C Ltd has a fantastic track record when it comes to carrying out a variety of different house extensions, and we always look to tailor our approach to suit different property layouts and client requirements. Our team takes care of everything from design and planning to construction and final finishes, helping simplify the journey to a new and improved home through meticulous project management.
Here are some of the most popular types of house extensions we deliver in and around the Dorset area:
Single-Storey Extensions – Perfect for expanding kitchens, dining rooms or living areas, single-storey extensions are a great way to create an open-plan space or improve the functionality of your home.
Double-Storey Extensions – If you need extra living space upstairs and down, a double-storey extension can add new bedrooms, bathrooms or larger communal spaces.
Side Extensions – Utilise unused space at the side of your property with a practical and stylish side extension. Ideal for homes with narrow or awkward plots.
Rear Extensions – Extend the back of your home to create a larger kitchen, dining area or living space. This option is perfect for properties with gardens that allow for additional footprint.
Over-Garage Extensions – If you have an existing garage, an over-garage extension is an excellent way to create new bedrooms or a home office without taking up additional ground space.
Front Extensions – Improve your home’s kerb appeal and add functional space at the front of your property, whether for an expanded entrance, porch or additional room.
Kitchen & Bathroom Extensions – A dedicated extension to expand your kitchen or bathroom, ensuring you have the space and layout to match your lifestyle.
Garage & Loft Conversions
If house extensions aren’t the right option for you right now, a garage conversion or loft conversion could be the perfect alternative. These projects involve a builder repurposing existing spaces without altering your home’s footprint. We’d urge Dorset residents to consider the value that can be provided by:

Garage Conversions
Transform your garage into a new living room, home office, gym or guest suite. Whether you’re looking to fully integrate it into your home or create a standalone unit, we ensure a seamless conversion.

Loft Conversions
Make the most of unused attic space by converting it into an extra bedroom, workspace or playroom. We handle everything from dormer conversions to hip-to-gable designs, ensuring a practical and stylish result.
Both garage conversions and loft conversions can significantly enhance Dorset properties’ functionality and value, and often don’t require planning permission.
Why Choose Blue C Ltd?
With decades of experience and a strong reputation across Dorset, we are the go-to builder for high-quality house extensions and property refurbishments. Here’s why our clients trust us:
25+ Years of Industry Experience – We’ve worked on a wide range of projects, from small domestic extensions to large-scale commercial refurbishments.
Fully Accredited – CDM compliant, New Roads & Street Works approved, and certified in First Aid, CSCS and SMSTS. Not to mention, we’re Safe Contractor Approved!
End-to-End Service – From planning permission to final finishes, we handle every stage of the project.
Domestic & Commercial Expertise – Whether you’re a homeowner or a business owner, we tailor our services to meet your specific needs.
Nationwide Coverage for High-value Projects – While we focus on Dorset, we take on large-scale projects across the UK.
Bespoke Solutions – Every extension and refurbishment is tailored to your property and requirements.


Get Started on Your House Extension
If you’re considering house extensions, a garage conversion or loft conversion in Dorset, Blue C Ltd is here to help. Whether you need additional living space, a larger kitchen or a brand-new home office, we have the expertise to bring your ideas to life. Contact your local builder today on 01305 823483 for a free consultation and let’s discuss how we can transform your home with a high-quality property extension.
Get in touch
01305 823483
The Yard
2 Victoria Square
Dorset
DT5 1AL
Monday – Saturday : 7am – 6pm
Sunday : Closed