Let's Upgrade Your Space with Loft Conversion Services

Your loft isn’t just empty space; it’s an opportunity. And at Plansing, we help you make the most of it with custom-designed loft/attic conversion services all over London. Why not transform the space above your head into a functional living area that adds long-term value to your home, all designed by our expert loft conversion architects?

Professional Loft Conversion in London: Turning Your Loft Into a Dream Space
Professional Loft Conversion in London: Turning Your Loft Into a Dream Space

Explore Types of Loft Conversion Services We Offer

Our experienced team has the skills and expertise to design all major types of loft conversions. You can choose the loft conversion type that best suits your home and lifestyle.

Loft Conversion Services
Dormer Loft Conversion
Dormer Loft Conversion

Provides extra head height and floor space by extending the roof, making it perfect for bedrooms, bathrooms, or home offices.

Hip to Gable Loft Conversion
Hip to Gable Loft Conversion

The sloping side of the roof is extended to form a vertical wall, making more space available; ideal for semi-detached and terrace houses.

Mansard Loft Conversion
Mansard Loft Conversion

A major roof transformation that maximises internal space, commonly used in built-up areas like London, where extra room is essential.

Velux/Rooflight Conversion
Velux/Rooflight Conversions

An energy-efficient option to add daylight with roof windows, without altering the existing roof structure.

L-Shaped Loft Conversion
L-Shaped Loft Conversion

Joins two dormers at right angles to form a large and flexible living area, popular for use on Victorian and Edwardian houses.

Modular Loft Conversion
Modular Loft Conversion

A prefabricated loft system that is manufactured off-site and assembled on-site, providing a faster and more predictable construction process.

Piggyback Loft Conversion
Piggyback Loft Conversion

Typically used on flats or maisonettes, this conversion builds a new structure above the existing roof to create an entirely new living level.

Building Better Lofts with Expert Planning & Design

At Plansing, we specialise in architectural design, and structural engineering for loft conversion planning in London. With over 800 completed projects and a 96% planning approval rate, our loft conversion design lofts that are functional, compliant, and genuinely achievable.

Personalised Loft Design

We provide personalised loft conversion plans for every home. We begin by understanding your home’s structure and how you envision using the space. We design spaces that fall under permitted development and handle planning approvals where required.

From Concept to Completion

As a reliable attic conversion company in London, we take care of everything for you. From initial surveys and loft conversion design and planning through to building and renovating, we provide high-quality loft conversion options to homeowners on time and on budget.

Built to Last

Safety and durability are at the heart of every conversion construction process we deliver. Our structural engineers work alongside our architects to ensure your new space is not only beautiful but also structurally sound and compliant with all regulations.

Explore Types of Loft Conversion Services We Offer

Our experienced team has the skills and expertise to design all major types of loft conversions. You can choose the loft conversion type that best suits your home and lifestyle.

Dormer Loft Conversion

1

Provides extra head height and floor space by extending the roof, which makes it perfectly ideal for bedrooms, bathrooms, or home offices. 

Hip to Gable Loft Conversion

2

2

The sloping side of the roof is extended out to form a vertical wall, making more space available; ideal for semi-detached and terrace houses.

Mansard Loft Conversion

3

A major roof transformation that maximises internal space, commonly used in built-up areas like London, where extra room is essential.

Velux/Rooflight Conversions

4

4

An energy-efficient option to add daylight with roof windows, without altering the existing roof structure.

L-Shaped Loft Conversion

5

Joins two dormers at right angles to form a large and flexible living area, popular for use on Victorian and Edwardian houses.

Modular Loft Conversion

6

6

A prefabricated loft system that is manufactured off-site and assembled on-site, providing a faster and more predictable construction process.

Piggyback Loft Conversion

7

Typically used on flats or maisonettes, this conversion builds a new structure above the existing roof to create an entirely new living level. 

Our Loft Conversion Services in Three Simple Steps

We are a trusted loft conversion company delivering complete solutions from concept to completion. Our services are delivered in three key stages to ensure a smooth, stress-free experience:​

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Survey, Design & Planning

After the initial consultation, our team performs a survey to assess your attic, identify the most suitable conversion options for your property, & prepare detailed plans.

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Approvals & Structural Engineering

We also promptly manage planning applications & council approvals with our experienced team, ensuring your project is safe and ready for construction.

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Project Management & Construction

We oversee the entire build process, coordinating construction, inspections, and finishing works to deliver a smooth conversion from start to finish.

Testimonials

Testimonials
O
Oliver Bennett
20 Jan 2026

Plansing made the design phase of our new build a genuinely smooth and collaborative experience. Their architect provided valuable insights and highlighted important considerations that we hadn’t previously considered, while always staying aligned with our vision. They listened carefully to our feedback and incorporated it thoughtfully, resulting in designs that blend beautifully with the surrounding environment. As the project progresses, we’re confident in continuing our long-term partnership with the team.

Thank you very much for your kind feedback. We’re delighted to hear that you had a smooth and collaborative experience with Plansing during the design phase of your new construction project. Our team always strives to provide thoughtful insights while fully understanding and respecting our clients’ goals. We’re pleased that the final designs reflect both your vision and the surrounding environment. We look forward to supporting you as the project progresses and to building a lasting partnership. Please don’t hesitate to contact us if you need any further assistance.

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James Whitmore
26 Jan 2026

I was looking for a truly distinctive garden room, and Plansing delivered exactly that. The team created a design that perfectly matched my requirements while paying close attention to every detail. They listened carefully to my ideas and refined the design to ensure it was just right. I’m really looking forward to seeing the finished garden room come to life.

Thank you for your lovely feedback. We’re delighted to hear that you’re happy with the garden room design created by our team. At Plansing, we always aim to deliver unique designs while carefully listening to our clients’ ideas and requirements. We’re excited to see the garden room take shape and look forward to supporting you throughout the build. Please feel free to get in touch if you need any further assistance.

T
Thomas Harrington
29 Jan 2026

I would highly recommend Plansing to anyone planning a new build. The team demonstrated a strong understanding of planning regulations, and my application was approved without any issues. Based on my experience, I would also recommend Plansing to anyone requiring a building regulations compliance certificate. Their service was professional, efficient, and well organised throughout.

Thank you very much for your recommendation. We’re delighted to hear that our knowledge of planning regulations helped secure approval for your application. It’s also great to know that you found our service professional and efficient. We truly appreciate your endorsement and would be pleased to assist you with any future projects or building regulations requirements.

FAQs

Do I need to tell the neighbors about loft conversion?

Yes, in case your loft conversion work starts with the shared wall, then you must require to legally inform your neighbour about the plan under the party wall act, etc, 1996, and you also obtain the party wall agreement from them to start your construction work.

How Much Can a Loft Conversion Boost My Home's Value?

An innovative and expertly designed loft conversion can usually add from 10-15 % as it also depends on the quality of your loft conversion, your location as well as the local market, it also goes up to the 25% in areas where space is at premium.

Does a loft conversion include a new roof?

A loft conversion does not always include a new roof. It typically involves reinforcing the existing structure, adding windows (like dormers or skylights), and insulating, but a new roof is only required if the current one is damaged or inadequate.

Is it worth getting an architect for a loft conversion?

Yes, hiring an architect for a loft conversion is worth it as they can maximize space, ensure compliance with building regulations, and create a functional, aesthetically pleasing design. Their expertise can also help avoid costly mistakes and streamline the planning process.

Can you live in your house during loft conversion?

Yes, you can usually live in your house during a loft conversion, as most of the work is done externally or in the loft space. However, expect some disruption, noise, and limited access to certain areas during construction.

Do you need to remove the roof for a loft conversion?

Not necessarily. In many loft conversions, the existing roof structure can be retained, with modifications made to create space, such as adding dormer windows or reinforcing the framework. Removing the roof is only required for certain types of conversions, like a full roof replacement or mansard conversion.

Do you need permission from the council for loft conversion?

Whether you need permission from the council for a loft conversion depends on your local regulations and the scope of the project. In many cases, loft conversions fall under “permitted development,” but planning permission may be required if the work exceeds certain limits or if you live in a listed building or conservation area. Always check with your local council to confirm.

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