
At AL-KO Construction, we specialise in creating bespoke extensions in Lewisham that enhance your home, increase living space, and improve property value. Whether you’re looking to expand your kitchen, add a spacious lounge, or create extra bedrooms, our experienced team will guide you through every stage of the project. With over 13 years of experience in home renovations and refurbishments across London, we combine expert craftsmanship with personalised service to deliver results that exceed expectations.
Why Choose Us?Homeowners in Lewisham trust us for our dedication to quality, attention to detail, and commitment to delivering their vision. A home extension is a major investment, and we ensure every project is handled with care and professionalism. Each of our extensions in Lewisham is designed to integrate seamlessly with your existing property while maximising functionality, style, and space.
We offer a comprehensive range of extension services, including:
No matter the scale or complexity, we manage every stage of your project—from planning and design to construction and finishing touches—ensuring your extension is completed to the highest standards.

Single-storey extensions are an excellent way to expand your home without major structural changes. Ideal for extending your kitchen, creating a bright lounge, or adding a home office, our extensions in Lewisham are designed to maximise natural light and create a seamless connection with your existing space. We handle all planning, structural work, and interior finishes to ensure a smooth, stress-free experience.
Double-Storey Extensions
For families seeking more space, a double-storey extension is a practical solution. Adding extra bedrooms, bathrooms, or even a home gym can significantly improve your home’s functionality and value. At AL-KO Construction, we carefully design every aspect of our double-storey extensions in Lewisham to ensure structural integrity, aesthetic appeal, and maximum usability.
Kitchens and Dining ExtensionsThe kitchen is the heart of the home, and a well-planned extension can transform it into a hub for cooking, dining, and entertaining. Our team specialises in extensions in Lewisham that create functional, stylish, and open-plan kitchen and dining spaces. From bespoke cabinetry and premium finishes to layouts that enhance flow and practicality, we ensure your new space meets both your lifestyle and aesthetic preferences.
Conservatories and Orangeries
Bring light, elegance, and style into your home with bespoke conservatories and orangeries. Our extensions in Lewisham are designed to integrate perfectly with your property’s architecture, creating bright and relaxing spaces for dining, lounging, or entertaining. Using high-quality materials and expert craftsmanship, we ensure your conservatory or orangery is a lasting addition that adds both beauty and value.
Rear and Side Return
Rear and side return extensions are an ideal way to increase living space without compromising outdoor areas. Perfect for larger kitchens, dining rooms, or utility areas, our Lewisham extensions maximise space, light, and usability. AL-KO Construction designs rear and side return extensions in Lewisham that flow naturally with your existing home, enhancing comfort and everyday convenience.
Planning and DesignPlanning is a key part of any successful home extension. Our team provides expert guidance on planning permission, building regulations, and design feasibility to ensure your extensions in Lewisham meet all legal and safety requirements. From initial consultation and 3D designs to final approvals, we handle all aspects of planning so you can enjoy a seamless process.
We work closely with you to:
• Understand your vision and lifestyle requirements
• Recommend layouts and designs that optimise space and natural light
• Select high-quality materials and finishes
• Ensure full compliance with building regulations and planning rules
Our proactive and collaborative approach ensures that your Lewisham extension is delivered on time, within budget, and to the highest standards of craftsmanship.

Investing in a home extension offers numerous advantages:
• Increased living space for family, work, or hobbies
• Improved property value and resale potential
• Enhanced functionality and room flow
• Modern, stylish designs tailored to your needs
• Opportunity to incorporate energy-efficient materials and layouts
With AL-KO Construction, your extensions in Lewisham are designed to maximise both practicality and style, creating a home that works for your family’s needs now and in the future.
The timeline for your extension in Lewisham depends on the project’s size and complexity. Single-storey extensions typically take a few weeks, while larger or double-storey projects can take several months. We provide a detailed schedule during the planning stage.
Many extensions fall under permitted development, but some require formal planning permission. Our team guides you through the process, ensuring all approvals are secured before work begins.
Yes. We collaborate closely with you to design extensions that suit your style, practical needs, and budget. We can also provide 3D visualisations to help you see the final design before construction starts.
Absolutely. Our extensions in Lewisham are designed to complement your home’s architecture, materials, and style, creating a seamless and cohesive appearance.

With over 13 years’ experience in home renovations and extensions across London, AL-KO Construction is committed to delivering exceptional results. Every extension we build reflects our passion for quality, attention to detail, and client satisfaction. Our team of skilled carpenters, builders, and designers ensures your extensions in Lewisham are completed to the highest standards, creating functional, stylish, and long-lasting living spaces.
Transform your Lewisham home with a bespoke extension designed and built to meet your exact requirements. Contact AL-KO Construction today to arrange a free consultation. Our team will guide you through every step, from initial planning to the finished space, creating a home that perfectly combines style, functionality, and comfort.
Your dream home is just an extension away.