Basement Build & Conversion

In residential property, the big word has always been ‘space’. These days, even a few extra feet of space, whether it is for your room, your den or your home office, this can all cost you an arm and a leg. But not here with us at Proficiency, we work alongside you and your budget.

For people who are living in areas like London where affordable living is closer to a closet than an actual room, just a handful of extra space can be completely out of the budget. And even if you already have your own home, government restrictions often limit just how high you can build to create that much needed extra space. That is why more and more people are now building down instead of building up. The modern answer to our living extension woes are, not so surprisingly, the basement and basement conversions. It is also the reason why the demand has risen so high for basement conversions in London.

Previously underutilised and often ignored in the years before, the basement has now become the go-to solution creating more space in your home. For some people, the underground space is already available but is often misused and forgotten about. Whilst for others the space needs to be created – That’s where Quod Homes can help.

We can take care of all aspects of bespoke basement conversions in London, from the design, the excavation of a core base, groundworks, waterproofing, tanking and under-structure construction, to fit-outs and renovations of existing cellars and basements. Our own project managers will manage the whole fit-out phase of your basement conversion project.

We have a history of creating exceptional basement substructures, combining clients’ ideas with our expertise in the construction of bespoke ground rooms and cellars. Our team of architectural designers and under-structure engineers can create or transform any space for you.
We are also able to work on larger projects, like “mega basements” and “super substructures”, as well as large entertainment rooms, home cinemas, gyms, interactive children’s playrooms, study rooms, swimming pools and ground floor spa spaces.

A major benefit of our service is that you can work with a team who specialise in each aspect of the conversion or build – whilst being project managed and delivered by us, with our 6 step process we can ensure your project is run to schedule, on budget and of course takes account of all that you wanted from your build/conversion.


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Islington, Barnsbury, Canonbury, East Finchley, Finchley Central, Finsbury Park, Manor House, Highbury, Highgate, Holloway, Hornsey, Crouch End, Lower Edmonton, Muswell Hill, Friern Barnet, New Southgate, North Finchley, Woodside Park, Palmers Green, Southgate, Seven Sisters, Stoke Newington, Stamford Hill, Tottenham,Upper Edmonton, Archway, Tufnell Park,Whetstone, Totteridge,  Winchmore Hill, Wood Green, Alexandra Palace, Regent’s Park, Camden Town, Cricklewood, Neasden, Hampstead, Swiss Cottage, Hendon, Brent Cross, Kentish Town, West Hampstead, Kilburn, Queens Park, Mill Hill, St John’s Wood, Kinsbury, Colindale, Willesden, Harlesden, Kensal Green, Golders Green, Hampstead,  Garden Suburb, Edgware, Harrow On The Hill

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Isleworth, Acton, Eastcote, Bayswater, Charlton, Brook Green, Chiswick, Ealing, Uxbridge, Greenford, Hanger Lane, Hanwell, Hammersmith, Holland Park, Westminster, Kensington, Elsham, Notting Hill, East Molesley, Ladbroke Grove, Marylebone, Mayfair, North Kensington, Warwick Avenue, Osterley, Paddington, Perivale, Shepherd’s Bush, Strand, Addlestone, West Brompton, Kensal Green, Queens Park, West Ealing, North Kensington, Queens Park, Kensington and Chelsea Notting Hill, Holland Park, Maida Hill, Maida Vale, Little Venice, West Ealing, Northfields Ealing, West Kensington, Kensington Olympia Fitzrovia, Tottenham Court Road, Camden, Chiswick, Gunnersbury, Turnham Green, Bedford Park, Paddington, Bayswater, Hyde Park

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Baker Street, Bloomsbury, Holborn, Kings Cross, Gray’s Inn, New Oxford Street Covent Garden, The Strand, Leicester Square, Charing Cross, Aldwych, Barbican, Belgravia, Soho, ,Clarkenwell , Hackney

SW1, SW2, SW3, SW4, SW9, SW5, SW6, SW10, SW12, SW13, SW14, SW15,  SW16,  SW17, SW18,  SW19

Earls Court, Pimlico, Brixton,  Streatham Hill, Tulse Hill, Clapham Park, Chelsea  Brompton,  Knightsbridge, Clapham, Stockwell, Fulham, West Brompton, Chelsea, Balham, Clapham South Barnes Mortlake, East Sheen Putney Roehampton Kingston Vale,  Streatham Norbury Thornton Heath Streatham Park  Furzedown Vale, Wandsworth,  Merton, Wandsworth, Southfields, Earlsfield Wandsworth, Wimbledon, Colliers Wood, Merton Park, Southfields, North Morden Merton,