Turn Unused Space Into a Valuable New Living Area
At Optima Builders, we specialise in bespoke loft conversions that transform underused roof space into bright, functional rooms – designed around your lifestyle, layout, and property type.
We deliver every stage of the process – from architectural drawings and planning permission to structural steelwork, insulation, plumbing, electrics and finishing. Whether you’re looking to create a bedroom, home office, en-suite, or a self-contained studio, we design and build with precision, compliance, and care.
We have experience completing loft conversions across North and North-West London – from period terraced homes in Finchley to large detached properties in Mill Hill and Totteridge. We’re known for delivering clean, discreet and respectful service – a standard appreciated by families across Golders Green, Hendon, Hampstead and Temple Fortune.
Our lofts are built to maximise both floor space and natural light, seamlessly blending with the style of each home. We also frequently work on lofts in conservation areas, ensuring structural integrity, fire safety, and planning regulations are all fully addressed.
With over 20 years of experience, we deliver conversions that add space, value, and comfort – without disrupting the architectural character of your home.
what to expect
- Free, no-obligation quotation tailored to your property
- Expert advice on design, planning permission, and building regulations
- Competitive pricing without compromising on quality

Types of Loft Conversions We Build:
- Rear Dormer Conversions (most common and cost-effective)
L-Shaped Dormers for added space in Victorian and Edwardian homes
Hip-to-Gable Conversions for semi-detached houses
Mansard Conversions for period properties or conservation areas
Rooflight / Velux Conversions for minimal external change
Loft + Ensuite / Kitchenette additions for rental or multi-generational use
Service Areas:
Barnet, Hendon, Mill Hill, Whetstone, Totteridge, Edgware, North Finchley, Finchley Central, East Finchley, Hampstead Garden Suburb, Finchley Road, Southgate, Hadley Wood, Tufnell Park, Camden Town, St John’s Wood, Notting Hill, Muswell Hill
Thinking of converting your loft?
Contact Optima Builders to arrange your free consultation. We’ll respond within 24 hours and provide a no-obligation quote tailored to your home and goals. We handle every detail – from concept to completion – to ensure a smooth, fully compliant build.