Call Now! 0800 917 7571 or Get A Quote
Launch Your Eltham Property Transformation with Simply Extend
With experience completing home extenions projects across the green expanses of Eltham, renowned for its rich history and community vibe, Simply Extend is the leading choice for residents looking to enhance their properties with innovative, affordable home extension solutions. Facing the challenge of an increasingly cramped space as your needs evolve, or pondering the addition of functional new areas to your residence, embarking on a house extensions project with Simply Extend offers an effective way to increase your living area without the hassle of relocating. Delve into our bespoke services for House Extensions in Eltham and discover how we can help revolutionise your space.
Creating the Perfect House Extension for Your Eltham Home
Eltham’s diverse range of architectural styles, from charming period houses to sleek modern homes, sets the scene for Simply Extend’s wide variety of bespoke home extension projects, tailored to suit the unique characteristics of your home. The journey starts with a comprehensive assessment conducted by a Simply Extend Surveyor, who will review your home, undertake precise measurements, and propose the most suitable house extension solutions that align with your lifestyle and budget. Whether it’s expanding your living space, adding additional bedrooms, or customising new bathrooms, Simply Extend is dedicated to meticulously managing every detail of your home extensions project to perfection.

Enhancing Your Eltham House
Whether your house is a testament to historical architecture or embodies contemporary design, Simply Extend offers a custom solution for every type of property in Eltham. From subtle side return home extensions that discreetly expand your space to more dramatic wrap-around and double-storey house extensions that significantly enhance your house’s functionality and aesthetic, we ensure the ideal solution to elevate your Eltham property.
Opting for Simply Extend for Your Eltham Home Extensions
As Eltham’s go-to specialists in home extensions, Simply Extend is committed to providing exceptional craftsmanship and quality, backed by a solid ten-year warranty for your complete assurance. Homeowners in Eltham choose us for several key reasons:
- Transparent, fixed pricing for absolute financial clarity
- A commitment to adhering to project timelines, ensuring a swift and efficient completion
- Personalised project management and unparalleled customer care, making for a streamlined house extension process
- Regular, comprehensive updates via our exclusive Simply dashboard, keeping you fully informed about the progress of your house extensions project
Expertly Handling Eltham’s Planning Permissions
Embarking on a house extensions project in Eltham involves more than just building work; it requires a thorough knowledge of planning permissions and adherence to building regulations as outlined by the Royal Borough of Greenwich. Leveraging Simply Extend’s extensive experience, we simplify this essential phase, guaranteeing that your project not only meets your high expectations but is also fully compliant with all pertinent local authority standards, ensuring a smooth and regulation-abiding project execution.
Eltham is one of South East London’s most substantial and family-oriented residential areas – a neighbourhood with a long history, a strong local identity, and a housing stock that is exceptionally well suited to house extension. Sitting in the London Borough of Greenwich and served by the SE9 postcode, Eltham offers the kind of generous plot sizes and well-built Victorian, Edwardian, and interwar properties that respond particularly well to rear extensions, side return extensions, and double-storey additions.
For homeowners in Eltham, extending is frequently the most straightforward and financially sensible route to gaining the space a growing family needs. Property values in SE9 have risen meaningfully over the past decade as buyers have increasingly recognised the value that Eltham offers relative to more central parts of South East London – and a well-executed extension adds to that value directly and measurably.
Simply Extend is the leading supplier of house extensions in South East London, delivering fully bespoke kitchen extensions, rear extensions, side return extensions, and double-storey additions to properties across Eltham and the wider SE9 area. Whether you are looking to create an open-plan kitchen and dining space, add a further bedroom, or build a dedicated home office, Simply Extend can meet all of your needs from initial design through to final build.
About the Eltham Area
Eltham is an area with a history that stretches considerably further back than most London suburbs. Eltham Palace, which stands at the heart of the area, was a major royal residence from the medieval period through to the Tudor era, and the Great Hall that survives today – dating from the 1470s – is one of the finest medieval buildings in London. In the twentieth century the palace was remodelled as a private home in the Art Deco style by the Courtauld family, and it now operates as an English Heritage property that draws visitors from across the country.
Beyond its royal and architectural heritage, Eltham developed primarily as a residential suburb during the interwar period, when the expansion of the tram and rail network made it accessible to workers seeking affordable family housing within reasonable reach of central London. The streets that were laid out during this period – broad, tree-lined, and planned with families in mind – give Eltham its characteristic spacious feel, which remains one of its most appealing qualities today.
Eltham today is a well-established and popular family area, with a busy high street, good local schools, and access to substantial green space including Eltham Park, Sutcliffe Park, and the open land that surrounds Eltham Palace itself. For families who want space, greenery, and a genuine sense of neighbourhood without the premium attached to areas further west in South East London, Eltham consistently delivers.
The area is served by Eltham station on the Southeastern rail network, with services running to London Cannon Street and London Charing Cross. Mottingham and New Eltham stations also serve the wider SE9 area. Road connections via the A2 provide direct access to central London and to the M25.
Different Housing in Eltham
The housing stock in Eltham is one of its great assets – solidly built, well proportioned, and across many property types, genuinely suited to extension. Unlike some inner London areas where tight plots and terraced rows limit what can be achieved, Eltham’s suburban layout means that many properties have the rear garden depth and plot width to accommodate meaningful extensions without compromising outdoor space or neighbourly relationships.
Interwar semi-detached houses are the defining housing type of Eltham, built in large numbers during the 1920s and 1930s to meet the demand for family housing in the expanding outer suburbs. These properties are typically well constructed with brick elevations, bay windows, and gabled roofs, and they sit on plots that frequently have both a side return and a generous rear garden. The combination of side return and rear garden access makes these properties excellent candidates for wrap-around extensions that transform the entire ground floor, as well as double-storey side extensions that add a bedroom and bathroom above.
Edwardian terraces and semi-detached houses are found in parts of the older residential streets closer to Eltham High Street and towards Well Hall, often with attractive period detailing and rear gardens that offer scope for rear extensions. These properties were built with the same back-to-front layout that characterises so much of London’s Victorian and Edwardian housing – a galley kitchen at the rear that benefits enormously from being opened up and extended.
Post-war housing of various types is also present across parts of Eltham, including detached bungalows and two-storey houses built during the 1950s and 1960s. These properties vary considerably in layout and construction, but many sit on large plots that offer genuine potential for ground-floor rear extension or, in the case of bungalows, both rear extension and upward conversion.
Detached houses of varying periods are found in the more desirable residential streets of Eltham, particularly in the roads close to Eltham Park and in the streets approaching the Shooters Hill ridge. These properties typically have the most generous plots and the greatest potential for substantial extension projects.
How a House Extension Can Add Value in Eltham
Eltham occupies an interesting position in the South East London property market. Values in SE9 are significantly lower than in Greenwich, Blackheath, and Lee – the more established and sought-after areas immediately to the west – which means that the cost of extension relative to property value is very competitive, and the potential to add value through extension is substantial.
Kitchen extensions are the single most impactful improvement that can be made to the typical Eltham semi-detached or terraced house. The standard layout of an interwar semi places the kitchen in a relatively confined rear room that is disconnected from the main living space and from the garden. A rear or side return extension that opens this up into a full kitchen, dining, and family room – glazed at the rear to bring in light and connect the interior to the garden – fundamentally changes the experience of the home. In a market where family buyers place significant weight on this configuration, a well-executed kitchen extension in SE9 can add between 10% and 15% to the market value of the property.
Double-storey side extensions are particularly well suited to the interwar semis that dominate Eltham’s streets, many of which have a side return or driveway with sufficient width to accommodate an additional storey. This type of extension can add a bedroom and bathroom at first floor while also enlarging the ground floor footprint – effectively increasing the number of bedrooms and the overall square footage in a single build, which in a family market delivers the strongest possible return.
Loft conversions combined with rear extensions are an increasingly popular approach for Eltham homeowners who want to maximise the potential of their property across two phases or as a single project. The combination of an additional bedroom in the roof and a reconfigured, extended ground floor is one of the most comprehensive ways to increase both the liveable area and the market value of a property.
Home office extensions have become a meaningful selling point in Eltham’s market, particularly as hybrid working has reshaped what buyers look for. A dedicated, well-designed ground-floor workspace or garden room annexe adds a feature that a growing proportion of buyers now treat as a necessity rather than a bonus.
Property values for family houses in SE9 have risen consistently and now regularly reach and exceed £500,000 for larger semi-detached homes – a market level at which the investment in a professionally designed and built extension offers a very strong return. Extensions from Simply Extend start from £50,000, and in a market with the growth trajectory that Eltham’s has shown, the uplift that extension can deliver is among the most attractive in South East London.

Why Choose Simply Extend for Your Eltham Extension?
Simply Extend is South East London’s leading house extension specialist, with a track record of delivering high-specification, fully bespoke extensions across Eltham, Mottingham, New Eltham, and the wider SE9 area. We combine in-house architectural design with experienced construction teams, managing the entire process from initial survey and planning submission through to the final build – so you have a single point of contact and complete visibility throughout your project.
Every extension we build comes with a ten-year satisfaction guarantee, giving you confidence and peace of mind from the moment you commission your build. We are committed to delivering extensions that are genuinely affordable without compromising on the quality of design and finish that your home deserves.
How Much Will a House Extension in Eltham Cost?
An extension in Eltham will start from £50,000. The total cost depends on the type and scale of the extension, the existing layout of your property, the specification of materials and finishes, and any planning requirements that apply. Simply Extend will provide a full, transparent quote following an initial survey of your home.
If you live in Eltham or anywhere in the SE9 postcode area and would like to discuss what might be possible with your property, our expert team are ready and waiting to discuss your requirements.
For more information about Simply Extend or to schedule a surveyor visit to your Eltham property, don’t hesitate to contact us at 0203 285 7357, email info@simplyextend.co.uk, or fill out our online form for a prompt callback.
Why Simply Extend Is the Premier Choice for House Extensions?
Our portfolio of exceptional home extensions in Eltham and throughout London demonstrates our commitment to delivering customised, cost-effective solutions that significantly improve your living experience.
With a ten-year satisfaction guarantee underpinning our work, there’s no better time to enhance your living space. Get a Free Quote Now. If you’re located in Eltham or the surrounding areas, take the first step towards transforming your property by reaching out to Simply Extend















