Business Details
28 Years
experience
Expert Loft Conversions & Extensions in London
South London Lofts has been delivering premium loft conversions and extensions across Greater London for over 25 years. Our expertise spans diverse property types including Victorian and Edwardian homes, flats, and conservation areas, with a focus on tailored solutions that maximise space and value. We pride ourselves on competitive pricing, meticulous project management, and a 10-year guarantee that underscores our confidence in workmanship. Our team of seasoned professionals handles every stage from initial design and planning permissions to final execution, ensuring seamless experiences for homeowners.With hundreds of successful projects and a reputation built on referrals, we combine technical excellence with customer-centric service to transform unused attic spaces into functional living areas. Our commitment to quality is evidenced by our in-house architect team, approved installer status for Velux windows, and adherence to building control standards. We maintain transparency throughout the process, offering free no-obligation quotes and maintaining open communication channels with clients at every project phase.
Services
Loft Conversions
Extensions
Mansard Conversions
Velux Roof Windows
Party Wall Agreements
Building Control Approval
Staircase Installation
Roof Terraces
Bathroom Integration
Structural Calculations
Details
- Year established: 1998
Highlights and features
- 25 years of specialist experience in London loft conversions
- Comprehensive service from design to completion
- 10-year guarantee on all projects
- Free no-obligation quotes and expert consultations
- Proven track record with conservation area projects
What people say
High-quality workmanship
Completed on time
Competitive pricing
Excellent communication
Professional team
Services
Loft Conversions
Specialist loft conversions tailored to London's diverse housing stock, including Victorian terraces and conservation areas. Our 25-year expertise delivers maximised living space with full planning support, structural calculations, and premium finishes. Projects include dormers, hip-to-gable conversions, and mansard extensions that add significant property value while maintaining architectural integrity.
Extensions
Custom residential extensions including wrap-around, side return, and rear extensions. We handle all aspects from party wall agreements to building control approval, creating seamless architectural integration with existing structures. Our double-storey extensions provide modern living spaces while maintaining compliance with London's planning regulations.
Mansard Conversions
Specialist mansard roof conversions that maximise headroom and floor space. Our team expertly combines traditional craftsmanship with modern techniques to create distinctive rooflines that comply with conservation area restrictions. Includes full structural support, insulation, and bespoke staircase integration for optimal space utilisation.
Velux Roof Windows
Approved installer of Velux roof windows for optimal natural light in converted spaces. We integrate windows with precision-cut openings and custom flashings, ensuring watertight installations that enhance energy efficiency. Solutions include combination systems with dormers for comprehensive lighting solutions in challenging roof structures.
Building Control Approval
Full building regulations compliance service with in-house architectural team. We prepare structural calculations, submit applications to approved inspectors, and manage site inspections. Our 2-day approval process and documentation support ensures projects meet London's stringent construction standards while maintaining design integrity.
Questions
Do I need planning permission for a loft conversion?
Many conversions fall under permitted development, but conservation areas and flats often require formal approval. We handle all planning applications and party wall agreements.
What guarantee do you provide?
We offer a comprehensive 10-year guarantee covering structural elements and workmanship, with responsive post-completion support for any issues.
How long does a loft conversion take?
Typical projects take 8-10 weeks from start to finish, with structural work completed in 4-6 weeks depending on complexity and weather conditions.
Can you work in conservation areas?
Yes, we specialise in conservation area projects using approved methods like mansard roofs and discreet dormers that meet local authority requirements.
Do you handle building regulations?
Yes, we manage full compliance including structural calculations, approved inspector submissions, and site inspections throughout the project.
What areas do you cover?
We operate across Greater London, with particular expertise in South London's historic housing stock and planning requirements.
Reviews (5)
Andrew
Dec 08, 2021
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We are a property developer with houses in South East London. We had a large number of building projects to be completed at the same time and decided to use the services of South London Lofts. We met with Director of South London Lofts who explained how they had multiple teams and were therefore able to work on multiple jobs. Based on this we decided to work with Director of South London Lofts on a number of projects which normally consisted of a loft conversion and full house refurbishment. Initially we were pleased
Extremely competitive quotes
The lofts conversions were happening
Extremely competitive quotes
The lofts conversions were happening
Dawn Worrell
Nov 22, 2021
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Can't say enough good things about this company. They started the loft in April and finished it in July. The delays were caused by the difficulties in getting materials due to lockdown and the shortage of delivery drivers following brexit. Our loft was finished to a high standard with the project manager offering money saving advice as well as advice on ascetics and design. He answered our queries in a speedy manner and checked in regularly! This room and bathroom have become my sanctuary. Thanks guys!
Matt C.
Nov 07, 2021
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Dangerous, Poor Quality Building Works
We chose South London Lofts (SLL) to complete a loft conversion and ground/lower ground floor renovation on our Victorian terraced house in Catford, SE6. From our initial dealings with Craig in 2019 (the owner of SLL) we felt reassured by his promises as to high work standards and excellent service. We agreed a price with Craig which was significantly lower than quotes that we received from his competitors, which Craig assured us was inclusive of labour and materials. Once Craig had our money and the works started, so did the problems. In the hope that we
We chose South London Lofts (SLL) to complete a loft conversion and ground/lower ground floor renovation on our Victorian terraced house in Catford, SE6. From our initial dealings with Craig in 2019 (the owner of SLL) we felt reassured by his promises as to high work standards and excellent service. We agreed a price with Craig which was significantly lower than quotes that we received from his competitors, which Craig assured us was inclusive of labour and materials. Once Craig had our money and the works started, so did the problems. In the hope that we
Nickie Rehal
Sep 14, 2021
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We have just had an extension completed by South London Lofts. This is the second time we have used them; they built our loft in 2016. They are a very honest and hardworking group of guys; we cannot fault their workmanship. The on-site builders were very respectful, each night they left the building site clean, tidy and secure. South London Lofts were so impressive when they built our loft, in 2016, that we knew when we were ready to get our extension, we would use them again. We did get a couple of quotes and South London Lofts were very competitive. Craig visited us on both occasions and went
Adele
Sep 12, 2021
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The only positive thing I can say is that the build itself was fast. While we have achieved a good finished product, that is at the cost of a lot of blood, sweat and tears from us, and an immense amount of stress. As pointed out by other reviewers, you pay the initial deposit to South London Lofts and then they hand you off to sub-contractors. We were clear upfront that we had never done anything like this before and were assured that the project manager would tell us everything we needed to know. South London Lofts quotes its service aim as giving you the best loft conversion speedily
