Basement conversions and excavations are an excellent way to add substantial living space in London, where land is at a premium. MYCONOS Construction Ltd delivers professionally designed and constructed basements — from media rooms and gyms to guest suites, kitchens, and full lower-ground floors.
Our team manages the complete process, including structural design, underpinning, excavation, waterproofing systems, drainage, ventilation, and high-specification finishes. We work with specialist engineers and waterproofing contractors to ensure your basement is dry, safe, and compliant with all relevant building regulations.
Whether you are converting an existing cellar, lowering a floor slab, or creating a new basement beneath your property or garden, we provide honest advice on feasibility, timelines, and costs. We understand the complexities of working in dense urban areas and take every precaution to protect neighbouring properties and minimise disruption.
With a strong focus on quality and safety, we deliver basement projects that add real value to your home. Our experience across West London and central London means we are well placed to guide you through planning, party wall matters, and the technical demands of underground construction.
Contact MYCONOS Construction Ltd to discuss your basement project. We will be pleased to review your plans and explain how we can help create exceptional space below ground.
Request a QuoteWhether you're looking to renovate your kitchen, convert your loft, extend your house, or refurbish your commercial space, MYCONOS Construction Ltd is here to help. Contact our builders today to discuss your project, and let us bring our expertise and craftsmanship to your next building venture.