HOUSE
DESIGN & RENOVATION
IN LONDON

House extensions

Extensions to existing homes are the perfect way to upsize without needing to move. You can create a larger living space, bigger kitchen, additional rooms or more bedrooms. By extending you avoid the cost and stress of moving, and adapt to current needs. Adding an extension to your house also adds value — hugely beneficial in cities like London, where land is at a premium.

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Residential building extension types

There are different ways to extend your home — you can go out, around, or out and up. Popular options for adding a house extension are:

  • Rear: ideal for a large kitchen diner, and making greater connections between inside and outside with bi-fold doors and skylights.
  • Side return: filling up the defunct side path with usable real estate is a smart way to make the most of the width of your property. Often used for the hub — where everyone gets together to eat.
  • Wraparound: combining the above styles, this creates greater use of the bottom floor, adding an external L-shape to make a more standard, and easy-to-use, rectangle indoors.
  • Double storey: going out and up at the same time maximises the ground your house is built on. A popular choice for those who live in densely populated cities where land comes at a premium, it’s all about making the most space possible from home extensions. London homeowners, in particular, value this option.
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Adding an extension to a house: cost

The cost of building extension to a house depends on various factors, including where you place it, how big it is, and what level of finish you want. Our average home extension cost per m2 is £1,500 – £2,500. Total price typically falls between £30,000 and £120,000.

Indicative starting house extension prices for different options are:

  • Rear: from £35,000
  • Side return: £40,000
  • Wraparound: £60,000
  • Double storey: £80,000

How to choose house extension builders

Of course, price is a major deciding factor in choosing the right home extension builders

for you. But remember it doesn’t all come down to cost. Getting the best balance of quality and expense is key.

This is where testimonials from previous clients come in. Read reviews, speak with the home extension company you’re interested in using, and take your time deciding which one you’re most comfortable with. Free consultations/schedules of work, detailed cost breakdowns, and 24/7 communication with your project manager are all benchmarks of reputable companies.

 

Look for industry memberships and accreditations to gain more peace of mind that the home extension contractors you’re considering are reliable and trustworthy. You’ll feel in safe hands by using an NHBC-registered licensed company, like Fittra Construction. Check their level of public and products liability insurance, too, and employer’s liability insurance. Accreditations could include:

  • NFB (National Federation of Builders)
  • FMB (Federation of Master Builders)
  • NHBC (National House-Building Council)
  • Considerate Constructors
  • TrustMark

Rest assured that we have all of these (and more), with over 10 years’ experience helping customers realise their dreams. When it comes to your building extension, you’re in safe hands with us.

The Fittra promise

Place trust in us and benefit from:

  • Complimentary consultation/works schedule
  • Just 5% deposit
  • Contactable 24/7
  • Internal team
  • Trade discounts
  • Employer’s/public/products liability insurance
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Interested in new builds?
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WHY WORK WITH US
pay only for work that has been done!
FREE CONSULTATION
FREE CONSULTATION
at all stages
24/7 COMMUNICATION
24/7 COMMUNICATION
with project manager
£10M EMPLOYER’S
£10M EMPLOYER’S
liability insurance
FREE SCHEDULE
FREE SCHEDULE
of works
Benefits from our trade discounts
Benefits from our trade discounts
£5M public & products liability
£5M public & products liability
5% only deposit payments
5% only deposit payments
Detailed cost breakdown
Detailed cost breakdown
Integrated, in-house team will work on your project
House extension - Photo №17
Benefits from our trade discounts
Benefits from our trade discounts
£5M public & products liability
£5M public & products liability
5% only deposit payments
5% only deposit payments
Detailed cost breakdown
Detailed cost breakdown

In the end you will get

A high-end product delivered on time and on budget!

TESTIMONIALS
SEE WHAT PEOPLE ARE SAYING
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Maidenhead

The work that Fittra did for me was a full house renovation – this did not include any new build or extension work but it did include moving a number of internal load bearing walls and extending external openings to install large sliding doors. The work was reasonably complex structurally as the upper floor is steel beam and concrete block construction. Externally all windows and doors were changed, guttering and fascias were changed and a new tiled deck constructed to give an outside/inside feel. Internally, walls were moved, new door openings created or widened to give a modern open plan look and feel.Read More

Ealing

“Fittra completed a rear extension, loft conversion and full refurbishment of our house in Ealing late last year. This included new bathrooms, heating system (including underfloor heating), electrics and plumbing. When obtaining quotes, Fittra’s prices were in the middle of the three companies who came back to us with costs, but the fact that it was fully itemised (unlike the other costs we received) gave us piece of mind that we knew exactly what we were getting for our money. “Read More

Wandsworth

“Can’t speak highly enough of Fittra and the job they did. They completed a rear extension, side return and loft extension and pretty much a full refurbishment of our house and garden in SW London. They not only did an incredible job, but they were also great to work with too. Vadym and Ivan’s team were incredibly efficient and hardworking and really amenable and collaborative. I have recommended them to a few friends subsequently, and will continue to do so.”

Hanwell, New build

Team at Fittra possesses all the attributes necessary to be an excellent contractor: they know their market extremely well; they are diligent, responsive, and yet very understanding with their clients. They are very professional and offer cost saving alternatives when possible. The thing that has impressed me the most is the professionalism, knowledge and helpfulness of all the workers.

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Isleworth

“We did our house fully renovation last year July 2019 – December 2019 with Fittra. We are very pleased with the results – our new kitchen (rear extension with lantern roof light), loft conversion, hardwood flooring, underfloor heating, tiling and etc.. Ivan and his team are truly professional. They finished the job with timely manner and customer satisfaction. Their breakdown quotes are easy to understand and easy to work with. We are highly recommended for Ivan, Igor and the team. Great job!!!”

OUR PROJECTS
Maidenhead
Maidenhead

This refurbishment project was absolutely thrilling to accomplish, with a solid team of interior designers and a delightful, intelligible client. Although the 1980s house was structurally complex, with heavy concrete planks in the original structure, as opposed to traditional wood, our team managed to support the existing structures and integrate new features to modernise the […]

Richmond renovation
Richmond renovation

This classic 1960s house in the London Borough of Richmond-upon-Thames required modernisation through a complete renovation.We worked closely with the client to create a new contemporary space that gave the residents more space and improved facilities while seamlessly blended in with the local area.

Ealing
Ealing

This project focused on renovating the terraced house by adding a rear extension and converting the loft. Two large skylights were installed to brighten up the living area and a new bedroom with en-suite shower created on the top floor. The extension added space to the side and rear of the property; this allowed for […]

Wandsworth
Wandsworth

The client chose us for this Wandsworth property to complete a house renovation, an L-shape dormer loft conversion as well as a wraparound ground floor extension. Open plan kitchen was created to maximise the living space and modern design gave it a gorgeous look. Our team added new sky lights over the kitchen island to […]

Wandsworth House
Wandsworth House

We provided design, engineering, construction and project management on this exciting renovation in the London Borough of Wandsworth. The project consisted of a two-storey extension, a brand new, bespoke open plan kitchen; new windows throughout, a new bathroom, stairway, complete plumbing and electrical, and enhanced lighting throughout and a rear-facing bay window.

Hanwell, New build
Hanwell, New build

We completed this substantial and ambitious new build in march 2019. With a large rear garden and extensive parking, the home makes perfect use of its natural space. A bespoke kitchen, with direct access to the garden, is one of the home’s standout features, as are the luxury bathrooms. The first floor features three spacious […]

East Sheen
East Sheen

This project includes a spectacular kitchen installation with a new dining and living area, which is as modern as it is welcoming in its design. We paid close attention to the layout to achieve a spacious, crisp and immaculate area. During the heat of lockdown, the client expressed concerns over staying safe from COVID-19, so […]

Isleworth
Isleworth

The client decided on full renovation of this detached bungalow. Our team built a rear extension with lantern roof light and converted the attic into the living space. They also added 2 new bathrooms to the property, installed underfloor heating throughout the house, changed the entire plumbing and rewired all electric systems. During the final […]

Acton
Acton

We recently completed the full refurbishment of this stunning home in Acton, West London. The extensive project included a brand new open plan kitchen with natural light coming from a huge bespokely designed skylight.   The project also included a new loft dormer, a completely new roof, two bathrooms, brand new electrics and a state-of-the-art […]

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