JP Refurbishment provides professional extension building services across London, helping homeowners create more space through carefully planned house extensions. From rear and side-return extensions to kitchen, wrap-around and double-storey projects, our team manages construction with a focus on quality workmanship, practical layouts and a finish that complements your existing property.
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Every property has its own layout, structure and space limitations, so a house extension should be designed around the way your home already works. JP Refurbishment works closely with homeowners across London to understand how the new space will be used, how it should connect with existing rooms and what changes are needed to improve everyday living. We consider factors such as access, natural light, internal flow, ceiling heights, structural requirements and the relationship between the extension and the original property.
Whether you are creating a larger kitchen, open-plan living area, dining space, home office or additional family room, the layout is planned around your practical needs. We also consider materials, doors, windows, flooring, external finishes and other details so the new extension feels consistent with the existing home.
From structural work and construction through to internal finishes and final detailing, our team manages each stage carefully. The goal is to create a practical, comfortable extension that adds useful space while feeling like a natural part of your property.
We assess your property, available space and extension requirements before construction begins. This helps identify access, layout and structural considerations that may affect the proposed build.
We plan the extension around your property, intended use and construction requirements. Where drawings, structural calculations or approvals are needed, these can be considered before work starts.
Once the main structure is complete, we finish the internal space with agreed plastering, flooring, decorating and other details needed to prepare the extension for everyday use.
Our team completes the main extension build, including walls, roofing, openings and other agreed construction work. We coordinate each stage carefully to maintain quality and consistent progress.
We inspect the completed extension, review the agreed work and address final details before handover. The aim is a finished space that connects naturally with your existing home.
We complete the foundations, structural openings and supporting building work required for the extension. Each stage is carried out around the approved design and structural requirements.
We begin by discussing your plans, help you understand how to get planning permission and assessing the existing property, available space and proposed extension area. This helps us understand your requirements, identify practical considerations and determine the next steps for the project.
Before construction begins, we plan the required works, materials, access and project stages. Where architectural drawings, structural calculations, permissions or other approvals are required, these should be confirmed before the main building work starts.
Our team carries out the agreed building work, including groundworks, structural construction, external walls, roofing and other required elements. The project is managed carefully through each stage while maintaining communication about progress.
Once construction is complete, we finish the agreed internal and external areas and inspect the completed extension. Any final details are reviewed before handover so the new space is ready to become part of your home.
Dreaming of a bigger kitchen or a sunlit dining area? A side extension could be your perfect solution! At JP Refurbishment London, we help homeowners like you find hidden space. We transform underused alleyways into beautiful, functional extensions. Picture a bright kitchen filled with sunlight from skylights. Consider elegant bi-fold doors that blend inside and out. Our staff can help you add family room, a home office, or just improve your living space. We help you from sketch to conclusion. We manage the planning and building, plus all the little details. You can choose premium fixtures and smart storage options. They make your extension truly unique. Sound like what you’re after? Let’s chat!
A rear extension in London is a great way to add living space. It also improves your home’s function and appeal. For a roomy kitchen-diner, a bright living area, or a chic open-plan design. JP Refurbishment London is here to help. They offer custom rear extensions that fit perfectly with your home. We use top-quality materials and modern building methods. This ensures both durability and beauty. You can choose features like glass roofs, bi-fold doors, and custom storage solutions. Our full-service package offers planning help, structural know-how, and project management. This way, you enjoy a smooth extension built to top standards. Ready to unlock your home’s potential? Get a personalised rear extension quote from our London experts today!

A rear extension adds extra space to the back of your home, creating a larger living area or open-plan layout. It improves comfort, natural light, and overall functionality for everyday family life.

A side return extension uses the narrow space at the side of your property to widen your home. It is ideal for expanding kitchens and creating brighter, more open and practical living areas.

A kitchen extension gives you a bigger, modern cooking and dining space. It allows for open-plan living, better storage, improved layout, and a more social and comfortable family environment.

A double storey extension adds extra space on both ground and upper floors. It is perfect for increasing bedrooms, bathrooms, or living areas while significantly boosting your home’s value and usability.

A wrap around extension combines rear and side extensions to create a large, flexible space. It transforms your home with open-plan living, improved layout, and maximum space for modern living needs.
JP Refurbishment works with homeowners across London on rear, side-return, kitchen, wrap-around and double-storey extensions. Our team plans each project around the property, available space, access and construction requirements to deliver an extension suited to the existing home.
House extension costs in London vary depending on the size, design and complexity of the project. Factors such as groundworks, structural alterations, access, materials, roofing, glazing, internal finishes and changes to the existing property can all affect the final price.
Different extension types also have different construction requirements. A straightforward rear extension may involve a different level of work from a wrap-around or double-storey extension. JP Refurbishment assesses each property and proposed design before preparing a detailed quotation based on the required work, materials and agreed finish.
Planning requirements depend on the size, position and design of the proposed extension, as well as the type of property. Some extensions may fall within permitted development rights, while others may require a planning application. Any relevant restrictions should be checked before construction begins so the project can be planned correctly from the start. Building Regulations are separate from planning permission and can apply to areas such as structural safety, insulation, fire protection, ventilation and other construction standards. Drawings, structural information and any required approvals should therefore be considered during the planning and pre-construction stages.
Because every property is different, the requirements should be confirmed for the individual extension rather than assumed from another project.
EXCELLENT Based on 29 reviews Posted on Google juan fernandez2026-05-09Trustindex verifies that the original source of the review is Google. Our experience as an architect and project manager with JP Refurbishment has been excellent. They are a family-run company with many years of experience behind them. The standard of detail and finish is very high, and whenever there were any supply issues with the products specified in the project, they were very proactive in offering several alternatives, all of which were acceptable. They carried out the work for a complete refurbishment of a flat in central London, in Pimlico, including the three bathrooms, kitchen and the painting and redecoration of the entire property. They also completely renovated the services (heating, electricity and hot water). They were also impeccable in keeping the site tidy and clean with regard to the residents’ association. For us, it was also an added bonus that they spoke Spanish and had extensive experience in the construction sector in Spain, as, being Spanish ourselves, this made communication much easier. We can wholeheartedly recommend Jon, Jorge and their entire team.Posted on Google Alma Messiez2025-10-30Trustindex verifies that the original source of the review is Google. We recently had JP Refurbishment carry out work on our hallway, living room and kitchen, and we couldn’t be happier with the results. Jon and his family team take real pride in what they do — their craftsmanship and attention to detail are fantastic. It’s clear that making the customer happy is their top priority. We appreciated the detailed estimate and the communication along the progress. We feel absolutely at home in our beautiful living room now thanks to them. This is a busy company, which says a lot about the quality of their work, but they still managed to deliver a great finish that exceeded our expectations. We would happily recommend JP Refurbishment to anyone looking for reliable, high quality, friendly builders.Posted on Google Saba Fatima2025-09-17Trustindex verifies that the original source of the review is Google. JP carried out a full internal renovation on my Victorian terraced house and the results are outstanding. They managed to keep the original character while adding a modern, elegant finish throughout. Every room feels brighter, more spacious, and beautifully designedPosted on Google Jeea Beea2025-09-14Trustindex verifies that the original source of the review is Google. Jon and his team completely upgraded my bathroom and the difference is amazing.It now feels spacious,elegant and very high-end.The team worked professionally from start to finish and the results are better than I imagined.Posted on Google Kirsty Wilson2025-08-15Trustindex verifies that the original source of the review is Google. JP Refurb helped me with some carpentry after I had been badly let down by another builder. They were professional and kept in touch with clear communication. I especially appreciated the online process to agree on the method and estimate in advance of them starting the works. Would be happy to recommend them to others.Posted on Google Sasha2025-07-27Trustindex verifies that the original source of the review is Google. Wonderful reliable high quality polite and transparent, real gem. Family business, where the people are highly experienced, well coordinated, trustworthy, attentive to detail and clients' preferences and queries. Also very patient and accommodating,/good at communicating. Highly recommended!!!! JP Refurb are doing external works (repair and paint of gable, barge and rafters) as well as internal structural refurb (wetroom structural and cosmetic repair and refurb). Thank you!Posted on Google George Noah2025-07-07Trustindex verifies that the original source of the review is Google. We were nervous choosing a refurb company, but Jon and his amazing team transformed our tired old apartment into something straight out of a 5-star hotel. They sent regular updates, and made the whole process smooth even while we were away in Dubai. Truly brilliant people!Posted on Google ONWE EBUKA2025-07-01Trustindex verifies that the original source of the review is Google. We entrusted JP Refurbishment with a full house renovation, and it was the best decision we made. Jon managed plumbing, flooring, tiling, decorating, and more with such care. Every room now feels brand new. The attention to detail and teamwork was exceptional. They delivered on time and on budget—true professionals!Posted on Google Amelia Southgate2025-06-26Trustindex verifies that the original source of the review is Google. Jon and his crew were outstanding during our roof restoration. They cleaned, repaired, and treated the roof with care and detail. The waterproof coating looks and performs brilliantly. The team was on time, polite, and respected our property. True craftsmanship is rare—but these guys have it.
JP Refurbishment London has completed countless renovations and home improvements in London. Our focus and determination are both solely centred around you, the client. Your satisfaction is what makes us tick, and is the driving force that helps us to create and renovate the most stunning spaces.
Speak with JP Refurbishment about your proposed extension and the extra space you want to create. Whether you’re considering a rear, side-return, kitchen, wrap-around or double-storey extension, we can discuss the project, assess your property and provide a detailed quotation based on the work required.
The cost of a house extension in London depends on its size, design, structural requirements, materials, access and level of finish. Rear, side-return, wrap-around and double-storey extensions can all involve different levels of work. JP Refurbishment assesses each property and project before providing a detailed quotation based on the work required.
The timeframe depends on the size and complexity of the extension, structural work, access and finishing requirements. A straightforward single-storey project may take less time than a larger wrap-around or double-storey extension. Before construction begins, we plan the main stages of the work and provide a clearer project timeframe based on your proposed extension.
Not every house extension requires full planning permission, as some projects may fall within permitted development rights. This depends on factors such as the extension’s size, position, property type and any restrictions affecting the home. Planning requirements should always be confirmed for your individual property before construction starts.
Most house extensions need to meet relevant Building Regulations, which can cover structure, insulation, fire safety, ventilation and other construction requirements. Building Regulations are separate from planning permission. The requirements depend on the proposed work, so they should be considered during the design and pre-construction stages of your extension project.
JP Refurbishment builds different types of house extensions across London, including rear extensions, side-return extensions, kitchen extensions, wrap-around extensions and double-storey extensions. The most suitable option depends on your property, available space and how you want to use the new area. We can assess your home and discuss an extension approach suited to your requirements.
We can support the extension project from the early planning stages through to construction and final finishing, depending on the agreed scope of work. This may include site assessment, planning of the build, structural and groundworks, main construction and internal finishing. Our aim is to keep each stage coordinated so the finished extension connects naturally with your existing home.
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