A & D Construction London
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A & D Construction London
Welcome to Lccl Construction, Loft conversion company, House extension builders, Architectural design services. Architectural design and construction of house extensions. We design and build house extensions in London and Hertfordshire. Architectural design services for loft conversions, house extensions and new build houses.

Complete consultation package London and Hertfordshire, United Kingdom. Find out more about our construction process and stages, how do we go about running our construction project and what are the core elements associated in the construction process. Architectural design and construction of loft conversions.

Dormer loft conversion, hip to gable loft conversions, L-shaped loft conversion, mansard loft conversion or velux loft conversion. We design and build loft conversions in London and Hertfordshire. We can project manage your project on your behalf, with our construction management services we build loft conversions, home extensions, renovations and new builds.
Reviews (8)
Jenn Bushby
Jenn Bushby
Dec 21, 2021
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Have instructed Lccl Construction to undertake construction of loft conversion to our terraced period property in North London. Found everyone to be professional and understanding of our needs, at first communicating with lccl was easy and efficient quote was issued the same day of contact, we went with Lccl Construction due to their experience, high reputation and knowledge of area, the cost was competitive considering amount of work required to build a loft conversion and the elements for it. Found them helpful throughout and loft conversion is completed with high quality. Highly recommend Lccl
Leigh Burke
Leigh Burke
Dec 15, 2021
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We were recommended to Lccl Construction by friend of ours to design and build loft conversion to our new home we purchased in Barnet. They helped us transform our house into exactly to what we imagined. Alexander, their architects and their teams done excellent guided us and giving us the best advice. Professional and reasonably priced. Would recommend them!
Victoria Hill
Victoria Hill
Nov 30, 2021
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Positive: Professionalism, Quality, Responsiveness, Value
Architect plans was produced swiftly and efficiently, prices are competitive, got our approval from local council which they resolved. I also have instructed Lccl for structure drawings and party wall agreements, the whole experience was friendly I would highly recommend
Alastair Chisholm
Alastair Chisholm
Nov 13, 2021
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Alexander and his architect and structural engineer produced the drawings for our extension and got them through planning efficiently, dealing with some drainage modifications required by the planners very quickly. They're also sorting out a party wall agreement for us on one side. Alexander has been very helpful and accommodating of our budget needs - now looking forward to getting on with the build!
Howard But
Howard But
Feb 17, 2021
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Alex from LCCL has been very responsive in providing professional advices and sharing his experience in dealing with possible planning and building control obstacles. The design drawings were prepared within tight time frame and we passed the planning application progress in one go. Alex and his team are friendly and accommodate, good to work with.
Mills Taylor
Mills Taylor
Feb 12, 2021
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We are very happy with the services from Lccl, Alex has done a great job on design and construction. We have used Lccl in the past for our rear extension and have come back to instruct Lccl for our loft conversion too. As before we are very happy with the services from Lccl and we highly recommend their design and construction services for both home extension or loft conversion.
Daniel Saunders
Daniel Saunders
Jun 22, 2020
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Lccl Construction has designed and built two storey side extension and loft conversion in East Finchley, North London. I have had 3 quotes and the quote from Lccl Construction was most realistic, I trusted their quote as they have many reviews and great portfolio of completed projects. Their architects have really listed to our needs and requirements and have all the drawings approved by local planning authority. The construction process with Lccl Construction was smooth they was always there working on site, had excellent communication at all times, they planned everything so we knew when to expect
Yan Chen
Yan Chen
Jun 21, 2020
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We used Lccl to do a hip-to-gable loft conversion. From the initial stages of architectural design, planning applications, construction calculations and party wall agreements to the final stages of construction, Alexander and his team provided us with excellent and professional service from beginning to end.
During construction, Alexander gave very helpful suggestions and was able to provide us with a high-standard loft conversion tailored to our house. We would highly recommend Lccl to our friends.