Explore home extension ideas that add value to your property with Doran Bros Construction. Expert advice on single storey, double storey, and loft conversions. Investing in the right home extension is one of the smartest ways to grow your property’s value, especially in competitive areas like South West London. Whether you’re dreaming of a single storey extension, a sweeping double storey extension, or something a little smaller but equally powerful, thoughtful planning and expert craftsmanship are vital.