Those Victorian terraces along Putney Hill didn't survive 150 years by accident - solid foundations make all the difference. Whether you're extending a period property or breaking ground on something completely new, the right groundwork sets everything else in motion.
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Putney's varied terrain presents unique challenges when laying foundations. From the clay-heavy soil near the river to the sandier patches around Putney Heath, each plot demands careful assessment. Properties here range from compact terraced houses needing careful underpinning to sprawling detached homes requiring substantial new footings for ambitious extensions.
Modern foundation techniques have evolved significantly beyond simple concrete pours. Ground investigation reveals soil composition, water table levels, and nearby tree root systems - particularly crucial given SW15's abundance of mature London planes and oaks. Strip foundations suit most residential projects here, though piled solutions occasionally prove necessary where ground conditions or proximity to neighbouring properties dictate extra caution.
Twenty-three years working across Putney means knowing exactly which building control officers prefer which documentation formats. Strong relationships with structural engineers familiar with local geology speeds approval processes considerably.
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Strip foundations for standard extensions generally run £8,000-£15,000, while underpinning Victorian properties starts around £20,000. Complex piled foundations can reach £35,000+ depending on depth requirements and site access.
Absolutely - from riverside properties near Putney Bridge through to homes backing onto Richmond Park. Regular projects span Putney Heath, Roehampton, and across to Barnes Common.
Foundation concrete needs 7-10 days minimum curing time before construction proceeds. Complete foundation projects typically span 2-4 weeks including excavation, steel fixing, and inspections.
Every foundation project includes comprehensive 10-year structural warranty documentation. This covers both workmanship and materials, with full insurance backing for complete peace of mind.
Most Putney properties have foundations adequate for standard loft conversions, though structural calculations remain essential. Heavier dormers or significant alterations might require foundation strengthening - easily assessed during initial survey.
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