Loft Conversions

A loft conversion is a fantastic way to increase your living space and improve the value of your home by up to a fifth. Converting your loft space into a bedroom, bathroom, or communal area can add up to 30% more space to your home and offers an excellent alternative to moving home if you need more room.

Avian Construction have worked throughout London for over a decade, and have established an excellent reputation for high quality and reliability. We ensure that your building work complies with regulations, follows the requirements for permitted developments (or your planning permission), and keeps your fully informed to minimise the disruption to you and your family.

We have completed dozens of loft conversions in Clapham, Wandsworth, and throughout London – take a look at our loft conversion case studies for inspiration and to see the quality of our builds.

Planning Your Conversion          

We partner with a number of experienced architects and structural engineers to take care of the whole planning and design process so you have the perfect loft conversion, and do not need to research this part of the build yourself. Once those plans are drawn up and our teams have made sure that your build works within the parameters of your permitted development (or planning permission), we begin the build. Loft conversions typically take 6-12 weeks, depending on the type of conversion and the finishes required. When working with Avian, you will receive a detailed schedule so you know when to expect completion.

Our process means that you have plenty of time to make changes to the plans or to ask questions before work starts; when you have accepted the quote, we provide a specification of work, payment schedule, and contract for you to look over before building commences. We always have a pre-start meeting around a week before the start date to answer any questions and to sign the paperwork.

London Loft Conversions

London’s architecture often means that loft conversions require party wall agreements. Party wall agreements essentially inform your neighbours that you are having building work carried out on a shared wall – this agreement works to safeguard both parties in case of damage. The costs for the party wall surveyor and serving the agreement are your responsibility as it is your work being carried out. If you get on well with your neighbours you may prefer to discuss it over coffee and sign the agreement then, rather than communicating via third parties.

If your neighbour contests the agreement, it could take a few months to get the agreement in place.

Loft conversions in London can often be completed as permitted developments, but it’s essential that you have the correct permissions for your build. We have been working in London for over 10 years, so our team have an excellent understanding of the requirements for different types of loft conversions. If your house is not listed, and you are not in a conservation area, you can usually have Velux or Dormer loft conversions added to your home as permitted developments.

Mansard loft conversions do offer far more room within the space, but usually require planning permission. Our team will ensure that you have the permission you require before commencing the build, or can work with your preferred architect to complete the initial stages of the process.

If you would like to discuss your plans or ask a question about loft conversions, please get in touch. A member of our team would be delighted to meet you and provide a quote for the building works.

ANY QUESTIONS? CALL 020 3174 1241
Case Studies

Loft Conversions Add a Fifth to Property Values

Loft conversions are one of the best ways to make your home more spacious – an intelligently-designed conversion can add as much as 30% more living space to your home without extending the footprint of your house. As with all home improvements, conversions also increase the value and sale-ability of your home. A study by […]

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The client wanted to make extensive improvements to her home in Wandsworth, including a loft conversion, a kitchen extension, and alterations to her existing lounge and one of the existing bedrooms. All of the work took around 12 weeks and they were extremely happy with the results.  


Avian Construction Ltd

Peterden House
1A Leighton Rd
West Ealing
W13 9EL

020 3174 1241