Those generous Sutton gardens deserve more than just lawn and borders. A thoughtfully designed annexe opens up possibilities – whether you're after a teenage retreat, home office, or granny flat to keep family close.
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Garden annexes have become the smart solution for Sutton homeowners looking to expand without the upheaval of moving. Victorian terraces in Carshalton, post-war semis around Cheam Common, modern estates near Sutton station – each property presents unique opportunities. Plot depths here often surprise people; that forgotten space beyond the patio could become your most valuable square footage.
Planning permission typically sails through under permitted development rights, though corner plots and conservation areas need careful navigation. Construction takes shape quickly once groundwork begins – insulated timber frames, proper foundations, full electrics and plumbing if required. Modern annexes feel nothing like glorified sheds; think underfloor heating, bi-fold doors, and finishes matching your main house.
Twenty years of building across SM postcodes means knowing which planning officers prefer traditional cladding, where drainage runs tricky, which streets have access challenges. Local knowledge matters when every project faces different constraints.
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Basic shell builds start around £15,000, while fully fitted annexes with bathroom and kitchenette range £25,000-£45,000. Size, specification and site complexity drive costs – a simple home office costs far less than a self-contained living space.
Absolutely – from the tree-lined roads of SM2 to bustling Sutton High Street in SM1, through to the quieter neighbourhoods of SM3. Recent projects include Wallington, Worcester Park borders, and numerous builds around Nonsuch Park.
Most annexes go from first dig to handover within 8-12 weeks. Smaller garden offices sometimes complete in 6 weeks, while complex builds with multiple trades might stretch to 16 weeks during busy periods.
Each annexe carries comprehensive 10-year structural protection, covering timber frame, roof, and weatherproofing. Electrical and plumbing installations meet current building regulations with appropriate certification. Annual check-ups keep everything shipshape.
Most run power and water from existing supplies via armoured cable and insulated pipework trenched underground. Separate consumer units give independent control. Some larger annexes benefit from dedicated utility connections, particularly if running electric heating or multiple appliances.
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