“Not just on time and precisely on budget but also considerately managed throughout”

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“The craftsmanship and care to detail has blown us away”

544 - 682r

“Holt understand that the quality of the work is the most important point to deliver on, and they do.”

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example - copy

“Not just on time and precisely on budget but also considerately managed throughout”

example - copy - copy

“The craftsmanship and care to detail has blown us away”

544 - 682r

“Holt understand that the quality of the work is the most important point to deliver on, and they do.”

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About Us

When brothers Rob and James Holt founded Holt Construction back in 2001, they set out to create a service that offered clients the complete package when it came to bespoke building solutions. We now have an expanding portfolio of luxury residential projects across London, and the business has grown to comprise a permanent team of skilled tradesmen, site and project managers, as well as an office support team. Our projects continue to diversify as we grow both the refurbishment and the design and build arms of the company, bringing in experts from a range of services to ensure every home is flawlessly finished.

Design and build

optimised- Development Image (About Us)

Stunning homes designed and built to an exceptional standard.



Delivering high quality, tailor-made refurbishments, extensions and conversions.

Our portfolio stretches across some of London’s most prominent property hotspots, from Kensington to Dulwich, Clapham to Highgate Village.


Design & build of pool house and refurbishment of swimming pool.
Full refurbishment and extension of a5 storey family home.
Complete design-led strip out and internal remodelling of a 5 storey family home.
Restoration and renovation of a Grade II listed2 storey apartment.
Remodelling and refurbishment of top floorpied-a-terre.
large bright conservatory
connaught designer dining room london
Sandown beautiful designer blue bedroom london
Complete refurbishment of a lateral apartment spanning over two town houses on one of Kensington's most prestigious squares.
Hertford Avenue dining
Hertford Avenue Kitchen
A sympathetic internal refurbishment of a modernist house in Highgate village.
Large contemporary ground floor extension and extensive refurbishment of a stunning family home on a private road in Wandsworth.
An overhaul of a Victorian terraced house in Clapham Old Town.
A complete refurbishment and rear extension of a large, lateral ground floor apartment, 
located on one of Holland Park’s most exclusive roads.
A complete internal refurbishment of a large ground floor spilt level apartment in Kensington.
2 storey extension and complete refurbishment of detached family home in Richmond
Modernisation and refurbishment of a large detached house in Waldegrave Park Conservation Area, Twickenham.
Heath house dining
Converted Penthouse Apartment

“A builder with the eye of an architect/interior designer who appreciates quality workmanship”

The Way We Work

Your Journey

Here at Holt, our aim goes beyond an exceptional build- we look to deliver an outstanding service when crafting your dream home. We pride ourselves on our ability to make the journey as stress-free and enjoyable as possible, whilst co-ordinating a range of specialists and ensuring your project runs seamlessly, and to deadline. Click on the arrows above to find out more about your journey with us.


After coming to us with a budget and your creative vision, Holt work hard to understand your priorities and advise you on how best to allocate your budget. A vital part of the process, we meet with clients several times before work begins- building these relationships allows us to achieve your vision within your budget and any practical restrictions.

The Design

Using our little black book of trusted experts, we help you source the best architects, landscape designers and interiors specialists, and help to manage the selection of materials, fixtures and fittings by clients well ahead of time.


We have a clear management structure in place to ensure targets, in terms of build quality, programme and budget, are hit. For every scheme Holt undertake, we use a number of project management tools which are updated daily, including a build programme and procurement schedule; this helps the decision making process.


Weekly meetings with architects and Holt site managers, project managers and directors are held and recorded, an essential part of the process as many of our projects are extremely complex. One of our top priorities is to carefully manage and consistently engage with subcontractors, which ensures installation keeps to deadline.


Aftercare & Maintenance

When your project is completed, we handover your home complete with a bespoke operations manual which explains how everything in the house works, down to every last detail- from plumbing and electricals to which replacement bulbs are required. Clients then liaise with our customer care team, who will help you move into your new home and address any final improvements.

We also offer a maintenance service exclusively for our Holt customers, attending to whatever is needed to keep your home pristine and working beautifully.  Anything from handyman jobs, managing annual maintenance agreements or a full refresh further down the line.

Meet The Founders

Rob Holt

Rob has always worked in the world of property, sharing his extensive knowledge, vision and experience with his colleagues and industry peers, whilst always remaining dedicated to the project in hand. When he is not working on the latest scheme, Rob enjoys keeping active, often skiing or surfing, and spending time with his family; it is not surprising that building tree houses with his three children is a favourite pastime.

James Holt

During his time at university, James discovered a passion for building and design; his acute eye for detail and ability to overcome logistical challenges is unsurpassed in the industry. If he is not setting up systems and processes to handle Holt’s complex projects, James, like his brother Rob, can be found skiing with his young family, or indulging in the occasional game of cricket.


We used Holt for the full reconfiguration and refurbishment of a house we had bought that needed a lot of work.  In summary, I could not recommend them highly enough, they have been superb throughout.  From the design process, where their insights and suggestions to us and the Architect, were hugely valuable, to the actual 10 month build that was not just on time and precisely on budget but also considerately managed throughout (my neighbours were very impressed with them). The main plus in my opinion has been the finish though.  It is stunning.  The craftsmanship and care to detail has blown us away.  We also used them for interior design and our home is now the envy of all our friends, several of which are now seeking to use Holt for their own projects.  All in all, if you are thinking of using Holt for a housing project, do it, you will not be disappointed.  They absolutely wont be the cheapest, but you get what you pay for, and having done a few housing refurbishments in my time I only wish I had used them before.  A fantastic company.

Client, Esher, 2018

This was a complete gut job on an existing apartment.  Plus an extension built out over a new part of the building’s roof.  Some quite complex engineering.  Holt did an outstanding job at all stages of the work.  They also did a very good job of keeping within the original costing and did not charge excessively for alterations during the project.  Finally, they have been a real resource since the main work was completed and have come back and dealt with a number of small extra jobs that were not in the original scope.  I would unhesitatingly recommend them and hire them again.  Indeed, I just have. To renovate another apartment.

Client, London W2, 2016

I have worked with Holt on a number of projects.  The service has always been first class.  They are highly organised, prepare carefully and the standard of work is always excellent.  Holt understand that the quality of the work is the most important point to deliver on and they do.  Their project management and communication is strong and they have always met their promises on timing, even if the project has taken longer than I would like.  They are well resourced and well informed on the most up-to-date materials and methods (eg eco options).  I could not recommend them more highly and would happily work with them again.

Client, Wimbledon, 2017

I provide a design consultancy for Holt on their development projects and when a design and build package is required for clients.  Always my preferred contractor – their attention to detail and the quality of build is second to none.  Always delivering my vision with precision.  A highly knowledgeable and efficient team, all working to create the best outcome for clients in terms of cost, time scale and with the best quality without the stress that can so often come hand in hand with a refurbishment.

Interior Designer, 2019

It was a pleasure to work with James and his team, who make the building process as stress free as possible.  They are receptive to building innovative details, and have a mountain of practical knowledge to add to a collaborative process.  They have brought in several contracts with me on time and on budget, and I genuinely believe they are one of the best small contractors in London.

Architect, 2014

We engaged Holt for a full modernisation and refurbishment project of our 6 bedroom Victorian home.  The quality of the work is exceptional to the extent that 4 years on from our moving back into our newly refurbished home, it still looks like new.  James Holt is a builder with the eye of an architect/interior designer, who appreciates quality workmanship and demands perfection from his team.  You only need to look at the way he sets up the site to realise the attention to detail they have.  Immaculately organised, a strong focus on safety, rules like none of his workmen are allowed to play music or radios that may offend neighbours, a very slick and well organised company.  I would have absolutely no hesitation in using them again myself and in recommending them most highly.

Client, Twickenham, 2015

“Immaculately organised with a strong focus on safety”