Create extra living space without moving with Garden Annexes in New Cross. We design and build self-contained annexes with a bedroom, bathroom and kitchenette, finished to a premium standard. Ideal for guests, grown-up kids, rental income or a quiet home office.
Response within 24 hours
New Cross homeowners often need more space, but not the upheaval of a full house extension. Our annexes are built as comfortable, self-contained living areas with insulation, electrics and plumbing included. Whether you’re near New Cross station or closer to Deptford Park, we tailor the layout to your garden’s shape and access. The result is a private, practical space that feels like part of the home.
Around SE14 you’ll find Victorian terraces, Georgian houses and many converted flats, each with different garden sizes and boundaries. We’re used to working with narrow side access, shared alleyways and mature planting that needs protecting. In the garden annexes New Cross area, we also see clients wanting flexible spaces for visiting family, au pairs, or a separate studio. Our designs suit period properties while keeping a clean, contemporary finish.
Fine Landscaping manages the full build: survey, design, groundworks, structure, insulation, first and second fix electrics and plumbing, then final finishes. You’ll get clear specifications, staged payments and tidy site management, with updates throughout. We coordinate trades so the build runs smoothly and safely. Many local clients choose us for our workmanship, reliable timelines and straightforward planning support.
In the London Borough of Lewisham, access and parking can be tight, especially around SE14 streets near Goldsmiths University. We plan deliveries, waste removal and working hours to minimise disruption and keep neighbours onside. Ground conditions vary, so we specify suitable foundations and drainage solutions after a proper site check. Our team is experienced with the constraints of Victorian terraces and long, slender gardens common in New Cross and nearby Brockley.
Rated 4.9/5 from over 280 verified reviews
Costs vary by size, specification and whether you need a full bathroom and kitchenette. As a guide, a compact insulated annexe with electrics typically starts from around £35,000–£55,000. A larger, fully self-contained annexe with plumbing, bathroom, kitchenette and higher-end finishes is often £60,000–£110,000+. Site access, groundworks, glazing choices and heating options can move the figure up or down.
Most builds take around 8–14 weeks on site once designs and specifications are agreed. Smaller annexes with straightforward access can be quicker, while larger self-contained units with bathroom and kitchenette usually take longer due to plumbing, tiling and second-fix works. Timescales are affected by ground conditions, bespoke joinery, glazing lead times and any planning or building control requirements. We provide a realistic programme before work starts.
Some garden buildings can fall under permitted development, but a self-contained annexe (especially with sleeping and cooking facilities) can trigger different planning considerations. In Lewisham, factors such as height, boundary distances, use as separate accommodation and conservation constraints may apply. We review your site, advise on the safest route and can support drawings and submissions where needed. We also check building regulations requirements for insulation, electrics and drainage.
We provide a 10-year warranty on our workmanship and the structural build elements of your garden annexe, giving you long-term confidence. Manufacturer warranties apply to specific products such as windows, doors, membranes, boilers or electric heaters, and sanitaryware where used. We also ensure electrics and plumbing are installed and certified by qualified professionals. If any snagging arises after completion, we respond quickly and resolve it properly.
You can choose from contemporary cladding (composite, timber, or fibre cement), brick slips for a more traditional look, and a range of roof styles including warm flat roofs or pitched options. Inside, popular finishes include plastered walls, acoustic insulation, engineered wood or LVT flooring, and built-in storage. For heating, many clients choose electric panel heating or underfloor systems. We guide you through options to match your budget, style and intended use.
Get your free, no-obligation quote today.