Premium Decking in Lewisham

Decking in Lewisham: Terraces, Slopes and the Ravensbourne Valley

Lewisham's gardens belong mostly to Victorian and Edwardian bay-fronted terraces, conversion apartments with private gardens and 1930s family houses around Ladywell Fields, Hither Green, Mountsfield Park and the Ravensbourne corridor. Many are shaded and damp, and several slope towards Hilly Fields.

Ground varies with the Ravensbourne valley: softer river alluvium in the low-lying centre near Ladywell, firmer London Clay on the hills. Gardens closer to the river tend to sit in flood-risk areas, where a permeable surface such as decking is generally preferred over solid concrete.

Operating just 15 minutes west of our Woolwich base, Billy and Vincent manage every Lewisham makeover on-site, offering prompt consultations across SE13, Hither Green, and Ladywell. See our full Lewisham landscaping guide for our complete range of services, including porcelain patios in Lewisham.

Which Decking Suits Lewisham Gardens?

Damp, shaded terrace gardens suit composite with hidden fasteners and an anti-slip surface, because there is no oiling to keep up with. Hardwood suits owners who want natural timber and accept the upkeep, and the subframe is ventilated whichever you choose.

Slopes and conservation areas both affect Lewisham decks, so the height and your street need checking early. Our composite vs timber decking comparison covers the materials.

What Our Lewisham Site Survey Looks At

Every Lewisham garden is different, so the free survey checks the things that decide how the deck should be built:

• Ground: alluvium in the valley or clay on the hills, which sets footing depth.
• Flood risk: whether the garden is near the Ravensbourne, checked against the Environment Agency flood map.
• Conservation area: whether your street is in one of Lewisham's 29 conservation areas, most with Article 4 directions.
• Slope: the fall towards Hilly Fields and the deck height at its highest point.
• Shade: how much light the garden gets, which affects damp and algae.

Whatever the board, every deck is built on a C24 strength-graded timber subframe over a breathable membrane, with joists at 400mm centres (300mm for diagonal layouts) and airflow underneath.

Planning, Slopes and Conservation: What to Check Before Building a Deck in Lewisham

Lewisham is covered by the London Borough of Lewisham. Under the Planning Portal rules, garden decking is normally permitted development if it is no more than 30cm above the ground, covers no more than 50% of the garden together with any extensions and outbuildings, and is not forward of the front wall of the house. A raised deck above 30cm, or any decking within the grounds of a listed building, needs planning permission. On designated land such as conservation areas, decking at the side of the house is not permitted development either. Lewisham has 29 conservation areas, including Brockley, Blackheath, Forest Hill, Ladywell and Telegraph Hill, and the council has applied Article 4 directions to most of them, which remove permitted development rights for single houses, including for hard surfacing and boundary treatments. If your street is in a conservation area, check with Lewisham Council before building.

SE13 gardens often slope, particularly towards Hilly Fields, and on sloping ground the government's guidance measures height from the highest ground next to the platform, though councils can judge steep sites differently, so a level deck on a sloping plot is worth checking with the council. Gardens along the Ravensbourne corridor, including around Ladywell Fields, can also sit in flood-risk areas, so check the Environment Agency flood map; a raised, ventilated subframe suits ground that gets wet.

In a conservation area you must give the council six weeks' written notice before cutting or pruning a tree, and the council can respond with a Tree Preservation Order, so a deck layout has to work around mature trees rather than assume they can come out. This is general guidance, not planning advice; always confirm with your local council before building. Our full guide to planning permission for decking in London covers every rule in detail. Once your deck is built, our decking maintenance and winter care guide and our guide to choosing a decking oil, stain or paint cover looking after it.

Balau Hardwood Decking

A recent Balau hardwood decking installation by The Tree Amigos Landscaping, South East London — showcasing the rich natural grain and warm tones of premium hardwood timber.

Quality Craftsmanship & Proof of Work

Every decking project is built by our permanent, in-house carpentry team under the direct supervision of Billy Maddox and Vincent O'Connell.

Frequently Asked Questions: Lewisham Decking

Schedule Your Lewisham Decking Survey

Speak directly with founders Billy and Vincent for expert advice and a free on-site survey across Lewisham SE13.