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London HomeOwners Looking to Increase Property Value
Achieve Your Dream Home Extension Under 20 Weeks - On budget, Time & Quality, or We Cover the Cost!
Claim Your FREE 30-Minute Consultation to Get a Precise Quote and Tailored Roadmap. Eliminate Any Guesswork with Our Seamless Integration Process. (Worth £397)
Enjoy a modern and practical home extension that enhances both space and value. In your consultation, we'll pinpoint your needs and offer expert advice on design, layout, and materials, avoiding costly mistakes. Plus, providing a detailed quote & plan ensures you a smooth home transformation journey from start to finish.
*Don’t miss out – secure your spot now!
07427 880511
Loft Conversions Specialists in South London — Planning Route. Structurally Designed. Professionally Built.
Turn the Space Above You Into a Proper Room, With Planning, Structure & Budget Confirmed First
Start with a FREE Loft Feasibility Check
(Normal £497 - Part of our LoftExpress™ Build-Ready Method)
In one short call and scheduled home visit, we confirm feasibility, conversion type, planning route and realistic investment, before you spend on drawings or builders.
Conversion type recommendation for your roof & goals
Planning route + structural viability confirmed
Realistic budget range before design spend
We intentionally limit availability to 3–4 new projects per quarter to protect build quality.
4.9/5 Houzz Rated from 40+ Happy Homeowners
I would not hesitate to recommend Encompass. From the initial consultation, through to the execution of the works, the team were professional, transparent and a pleasure to deal with.
James William
Let's chat about your project
Fill in the short form and you’ll be taken straight to our calendar to choose a convenient time for your no-obligation home visit.
We’ll then give you a quick call to confirm the details and prepare properly before coming out, so the visit is focused, useful, and worth your time.
In that one visit, you’ll understand what’s structurally possible, which route makes sense for your property, and what the realistic investment range looks like, before committing to anything.
This session is best suited for homeowners planning professional build work.
What You’ll Discover in Your FREE Loft Feasibility Visit
Why some lofts look stunning at first… but feel awkward to live in six months later.
The planning route most homeowners assume is fine until it’s rejected late and delays the project by months.
Which conversion type actually fits your roof (Velux, Dormer, Hip-to-Gable, Mansard) and why choosing the wrong one locks you into unnecessary spend.
The hidden structural constraints that change cost and layout; the stuff most people only learn mid-build.
The 3 design moves that add value, liveability and make a loft feel like a natural extension of your home, not an obvious add-on.
Why most fixed prices aren’t truly fixed and what must be defined before you trust any number.
This step is for homeowners considering professional build delivery by making the right decisions before committing.
How Encompass LoftExpress™ Moves You From Idea to Build-Ready & Beyond
A clear, staged process that confirms feasibility, protects your budget, and prepares everything properly before construction begins.
1. Feasibility & Smart Direction
We confirm your loft qualifies, inspect roof structure and head height, discuss your goals, and recommend the smartest conversion type for your property.
Early view of what’s realistic on loft types like Velux, Dormer, Hip-to-Gable, or Mansard, based on structure, value, and planning logic.
You receive:
✔ Practical layout ideas
✔ Realistic budget range
✔ Planning route clarity
✔ Early red-flag identification
Prevents:
Rushing into drawings for a loft that isn’t viable, over-building, or under-estimating cost, saving you weeks of uncertainty.
This is where guesswork ends.
2. LoftExpress™ Build-Ready Pack
If your project makes sense, we prepare the accurate scope before construction:
✔ Architectural drawings
✔ Structural calculations
✔ Planning & development approval
✔ Detailed scope & fixed investment clarity
✔ Build roadmap
You don’t just get “plans”. You get a fully structured project ready for construction with no vague allowances or moving targets.
Prevents:
Budget drift, contractor confusion, mid-build redesigns.
This is where projects become executable, with everything a builder will need to start properly.
3. Professionally Built, Fully Managed
When you’re ready, we deliver the construction under one accountable team.
✔ Dedicated project manager
✔ Minimum disruptions
✔ Fixed price agreement
✔ Weekly updates
✔ Fully insured & certified
✔ 6–10 week typical build timeline
✔ RICS-backed valuations showing increased equity
No juggling trades.
No coordination chaos.
No “we’ll figure it out later.”
This is where vision becomes finished space.
This is a build-validation method. It helps homeowners decide if, what, and how to build, not just what looks good.
Our Portfolio
See How We Turn South London Lofts Into Build-Ready Living Space
Velux, Dormer, Hip-to-Gable and Mansard lofts delivered in SW18 and surrounding areas — each structurally designed, planning compliant, and professionally built by one specialist team.
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Loft Build
Roof Build
Loft + Extension Exterior
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Loft Build
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Who this is for
This Is a Good Fit If…
You’re planning a substantial renovation and want it done properly
You value clarity and long-term quality over rushed decisions
You want one accountable team from design through build
Not a Fit If…
You’re only looking for drawings or ideas to build yourself
You’re looking to collect quotes from multiple firms, without a defined plan
You’re exploring purely for inspiration, not decisions
Before You Speak to Builders, Speak to the Right Process
Most loft projects don’t go wrong because of bad intentions. They go wrong because key decisions are made too early.
A quick quote.
A rushed layout.
A builder who says “yes” before confirming feasibility.
Then midway through construction:
Costs shift.
Layouts change.
Compromises appear.
And by that point, you’re already committed.
That’s exactly why the LoftExpress™ process exists.
This isn’t about getting you a quote.
It’s about confirming:
• Whether your loft qualifies
• What type of conversion makes sense
• What it will realistically cost
• What to avoid before design fees begin
• And whether the project is worth pursuing at all
If it makes sense, you move forward properly.
If it doesn’t, you avoid an expensive mistake.
Either way, you leave with clarity.
This step is for homeowners considering professional build delivery by making the right decisions before committing.
⭐⭐⭐⭐⭐ 4.9/5 Houzz Rated from 40+ Happy Homeowners
Here's What Our Clients Have To Say About Us
Paul
SW18 Dormer Loft Conversion
⭐ ⭐ ⭐ ⭐ ⭐
If you’re reading this, you probably know the uncertainty that comes with asking builders to assess your loft plans and hoping everything you’re told is actually true.
After meeting several companies and not feeling confident, we contacted Encompass London — and it immediately felt like a breath of fresh air. Leon and Jason’s knowledge of the industry gave us real reassurance.
They improved our original plans to make better use of space and bring in more natural light, including ideas for the staircase and layout of the loft.
The project included a walk-in wardrobe and en-suite shower room, and the team helped us use the space far more efficiently than we had imagined.
Everything was completed on time, within budget, and with great attention to detail. The team were courteous, professional and always mindful that they were working inside someone’s home.
We’re delighted with the result and wouldn’t hesitate to recommend Encompass.
Iain
Full Refurbishment + Loft Suite
⭐ ⭐ ⭐ ⭐ ⭐
We decided to move forward with Encompass after hearing strong recommendations from friends and acquaintances.
After visiting the website, we met some of the team at our property and from the start they were friendly, knowledgeable and professional.
Our project involved a full house refurbishment alongside a loft conversion with an en-suite, family bathroom, structural steel work, a new enlarged kitchen, wooden flooring and decoration throughout.
From start to finish the process was well organised and the workmanship was excellent. Everyone on site was hard-working, respectful and clearly proud of the quality of their work.
We’re extremely pleased with the outcome and would happily recommend Encompass to friends and family in the future.
Charles
Loft Extension with En-Suite
⭐ ⭐ ⭐ ⭐ ⭐
We approached several companies before starting our loft extension, and Encompass stood out straight away for their enthusiasm, competence and clear guidance.
We needed a team who could confidently manage the build while also helping us make the right decisions along the way.
The project came with extra pressure as my wife was pregnant at the time, so completing the work before the due date was extremely important to us. The team handled this brilliantly and delivered on time.
Communication throughout the project was excellent and the team on site were professional, helpful and easy to work with.
The finished loft looks fantastic and the entire process felt well managed from start to finish.
We had the pleasure of working with Leon, a highly skilled and experienced building contractor. He and his team handled every challenge with ready solutions, making our house extension project an exciting and nearly carefree experience. Their professionalism and expertise turned what is usually a stressful process into a smooth and enjoyable one. We highly recommend Leon for any building work
Having had a bad experience previously Leon and Encompass were recommended to us and I couldn't rate them higher. At a time of extreme stress, his team were super helpful and friendly from start to finish and we have been able to approach them since they completed the work also and they're still as helpful as they were at the beginning of the project. Would use them again immediately for any other building work without doubt.
We have been dealing with Encompass for the past 15 year. Having their shop front and offices a few doors down for ours on Garratt Lane means that they are always there if clients wants to pop in and discuss potential works. We recommend their services to our clients when purchasing properties, having undertaken many lofts and extensions throughout this period. Seeing their work first hand and getting positive feed back from our buyers means that we can continue to recommend them.
Encompass London have been excellent in solving those problems likely to only become evident on site during construction. They are clearly well trained understanding the importance of good architecture because their way of solving problems always take the final outcome into consideration and always deliver excellent results.
Leon is fantastically helpful, had some great ideas for what we could do with our space, and really quick response times means he's so easy to work with. Would highly recommend!
We engaged with several companies to discuss our proposed complete refurbishment of our kitchen/living/dining space but the team at Encompass impressed us the most and gave us the most confidence of a company we could work with. Communication was excellent, and I could always get a response without having to chase. Work was of an excellent quality and attention to detail was brilliant, and they delivered exactly what we wanted rather than doing what was easier. Felix (site manager) and his team were very polite, respectful, respectful of our property and did their best to leave the site tidy each evening, especially as we were still living there. Nothing was too much trouble and happily accommodated any changes and additional work. Leon and Jason both visited site and ensured everything was going as it should and that we were happy with progress and the team on site. Leon and Felix both came on completion to snag the work and ensure all was as it should be before the final invoice was issued. I have recommended Encompass to my son who is looking to have a loft extension and would certainly use them again for any future works.
I have worked with Encompass on a number of projects now, and have found the experience to be a real pleasure each time. They are organised, professional, and the communication between them, their team and the clients is excellent. The best thing about them, for me, Leon's attention to detail. As a designer, to know that I'm talking to someone who knows the project inside out, is fantastic. I have no hesitation in recommending them to clients.
Encompass provided us with a free site visit and survey to consider the feasibility of carrying out some renovations on a property we are in the process of buying. They provided a very frank and honest assessment without any commitment to proceeding with their services and gave some valuable wisdom from their extensive property development experience.
Just wanted to thank the guys from encompass for their recent refurbishment work. On time and almost on budget, a small miracle from my experience. The quality of finished product was better than expected and more importantly for us was the attitude of the guys on site. Despite the usual problems and changes. All concerned were polite and easy going.
Leon & Jason
Co-Founders
ABOUT US
South London Loft Specialists. Built on Experience, Not Guesswork.
With over 30 years in construction and property, we’ve seen exactly where loft projects go wrong and how to prevent it.
We specialise in loft conversions across South London, combining architectural thinking, structural knowledge, and practical build experience under one roof.
From our office in Earlsfield SW18, we manage projects end-to-end, from feasibility and planning through to final certification.
We don’t outsource responsibility.
We don’t rely on vague allowances.
And we don’t leave clients figuring things out mid-build.
Every estimate is detailed.
Every structural element is considered.
Every stage is managed by one accountable team.
That’s why our projects move smoothly and why our clients avoid the common £10k–£20k mistakes others only discover too late.
Fully insured. Structurally certified. Planning compliant.
Our Services
From Feasibility to Finished Loft. All Under One Roof
Everything needed to design, approve, engineer, and build your loft properly managed by one accountable team.
Feasibility & Structural Assessment
We assess roof structure, head height, planning route (PD vs planning), and the smartest conversion type before drawings begin.
You understand what qualifies and what doesn’t before spending money on architects.
✔ Prevents rejected plans
✔ Prevents structural redesign mid-build
✔ Prevents false “ballpark” pricing
Architecture & Planning Support
We prepare architectural drawings, structural engineering calculations, and manage planning or permitted development applications where required.
No guesswork. No outsourcing chaos.
✔ Planning clarity
✔ Building regulations compliance
✔ Structural sign-off handled properly
Detailed Scope & Fixed Build Proposal
Once the design makes sense, we create a clear build roadmap with scope, cost logic, and timeline, so you know exactly what moving forward involves.
✔ Transparent pricing
✔ Defined timeline (typically 6–10 weeks)
✔ No “we’ll figure it out later” surprises
Professional Build & Project Management
Our specialist loft team delivers the project end-to-end with one dedicated project manager.
We coordinate trades, inspections, certification, and quality control, so you don’t have to.
✔ Fixed-price guarantee
✔ Managed disruption
✔ 5–10 year structural warranties
Our 10 Years "BrickWall" Guarantee
When we say we’ll deliver, we mean it. The price we quote is the price you pay, if you will move forward. If we miss something, we cover the cost, not you. If we delay your project due to our own fault, we’ll cover the disruption and discount your invoice to make it right.
And once it’s complete, our 10-year workmanship warranty means if anything fails due to our work, we’ll fix it fast and free.
This step is for homeowners considering professional build delivery by making the right decisions before committing.
Service Area We Cover
We work in and around London and we’re based within an office in Earlsfield High Street SW18, opposite the train station, in a building that we own. So we’re visible, we’re open and we’re accessible.
FAQs
How much does a loft conversion typically cost in South London?
Most loft conversions in South London fall between £45,000 and £85,000, depending on the type (Velux, Dormer, Hip-to-Gable, Mansard), structural requirements, and finish level. During your feasibility check, we give you a realistic cost range based on your specific property before you invest in drawings or commit to builders.
Is the initial feasibility check really free?
Yes. The first step is a no-obligation call and home visit to confirm:
• Whether your loft qualifies
• What type of conversion makes sense
• What it will realistically cost
• The smartest route to approval
If the project makes sense and you want to proceed, we then prepare the full LoftExpress™ pack.
Can all lofts be converted?
Not always. Roof height, structure, planning constraints and neighbouring properties can all affect viability. That’s exactly why we start with feasibility to confirm what’s possible before you spend money on architects or detailed plans.
How long does a loft conversion take?
Once construction begins, most projects take 6–10 weeks, depending on scope. We also structure works to minimise disruption with much of the early work carried out from outside before breaking through internally.
Will I need planning permission?
Many loft conversions fall under Permitted Development (PD), but some require full planning approval. We assess this early and confirm the correct route before moving into architectural drawings, avoiding delays and rejected applications.
Is the price fixed?
Yes. Once scope is finalised and agreed, we provide a clear, detailed fixed-price quotation.
No vague allowances.
No “we’ll see once we open it up” surprises.
Why choose a loft specialist instead of a general builder?
Loft conversions are structurally complex. They involve roof structure, steel installation, planning compliance, party wall matters and tight timelines, often while you’re living in the property.
Specialist experience reduces risk, prevents costly mistakes, and protects property value.
What happens after the feasibility visit?
If your project makes sense, we prepare the LoftExpress™ pack, which includes:
• Architectural drawings
• Structural design
• Planning submission (if required)
• Build-ready documentation
This stage is credited toward your build if you move forward with us.
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