That unused corner of your Lewisham garden could become the home office you've been dreaming about. Victorian terraces throughout SE13 often hide surprisingly generous gardens, perfect for modern annexe installations that blend seamlessly with period properties.
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Space is at a premium in SE13, yet many homeowners overlook their most valuable asset – the garden. Behind Lewisham's characteristic terraced houses lie plots averaging 30-40 feet, offering genuine potential for self-contained annexes. These timber-framed structures provide anything from teenage retreats to rental income opportunities, all while preserving precious green space.
Modern garden annexes incorporate SIPs panels, triple glazing, and underfloor heating as standard. Foundation work adapts to Lewisham's London clay, typically requiring reinforced concrete bases extending 1.2 metres deep. Electrical connections run underground from your main property, while water and drainage tap into existing systems where feasible. Planning permission often falls under permitted development rights, though conservation areas near Blackheath require careful navigation.
Local knowledge matters when dealing with SE13's mixture of Victorian stock and post-war developments. Years spent working between Catford's suburban plots and Deptford's compact gardens means understanding exactly what works where.
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Basic 4x3 metre structures start around £18,000, while fully-fitted 6x4 metre annexes with bathroom facilities reach £35,000-£45,000. Site access through Victorian terraces can add 10-15% when crane lifting becomes necessary.
SE13 forms our core territory, extending into neighbouring Catford, Blackheath borders, and parts of Deptford. Site visits typically happen within 48 hours for properties within these postcodes.
Eight to twelve weeks covers most projects from initial groundwork to final handover. Weather delays occasionally extend winter builds by a fortnight, particularly during Lewisham's notoriously wet Novembers.
Every structure carries decade-long coverage against defects in materials and workmanship. This includes the timber frame, roof membrane, and all glazing units – essentially everything except normal wear items like door handles.
Victorian properties in SE13 usually accommodate service connections well. Electrical supplies route through armoured cables, while water connections depend on existing pipe locations. Many clients opt for electric-only setups, using infrared heating and avoiding complex drainage work.
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