Are you looking for a house or kitchen extension, renovation or refurbishment in Stanmore? House Extension London are here to assist you. We arrange a free no-obligation site visit at your property to assess your house extension aspirations, thoughts, vision, and budgetary concerns. We will help you plan, design and build you extension in Stanmore.



Bespoke House Design in Stanmore

We understand that no two houses are the same. Therefore, we only do 100% custom design, planning, and consult with you in each step of the process. Our architects will work closely with you to draw ideas into a final set of plans for the extension build phase. Planning permission rules vary from council to council. It is important to choose the right architects who have experience in your council to support your planning permission application.


Our build teams begin construction under the supervision of your personal project manager. We will provide you a detailed plan of the project to ensure that the right trades, tools, and materials will be on-site at the right times for a smooth build. Our construction is only completed when you are happy, the job site is then cleared so that you can start decorating your newly extended living space.


Our team has a lot of experience when it comes to kitchen extensions. A Kitchen extension in Stanmore is one of the most popular types of home renovation undertaken by London residents. A newly added kitchen can increase the value of your property by 6% and many buyers in Stanmore see this first when buying the property. Our team can offer our expertise and guidance so that your extension process runs efficiently.



You can choose from a wide range of house extension solutions, such as: Single storey extension, Rear Extensions, Double storey extension, Side extensions, Bungalow extensions, Garage & house extensions. We cover the whole of London and the home counties supplying a comprehensive solution to our clients varying requirements.



Most house improvements involve an addition of an extra space to accommodate either a new bigger kitchen, adding a shower or toilet under the stairs, increasing the internal space for big family functions. All modern house extensions nowadays have bi-fold doors, skylights, Velux windows etc. Many London families are opting for the open plan kitchen and dinner as they tend to offer better use of the space and feels spacious too. Contact our team today to discuss your house extension options and free no obligation quote.

What can we do for your Property in Stanmore?

If you would like to discuss the ways in which a House Extension could enhance your Stanmore property, call us on 0208 1050 675 or email info@houseextensionlondon.com to ask us any questions. For a free site survey and design consultation please fill out the form on the right and our team will get back to you as quickly as possible.

Stanmore becomes the most desirable place for extension work to meet your growing family requirements without any moving hassle. It is far away from Central London's hustle and bustles, at the same time accessible transport connected into the city for the daily commute. House extension Stanmore  has their experts here and gained an enviable list of clients. As finding extra space can be hard to come by in Stanmore, we offer the best solution to solve all of your problems.

House extension Stanmore can turn your dusty loft, which is filled with creepy crawlies, into a living area to be valuable and enjoyed by you and your family.

The benefits of choosing House extension Stanmore for your extension work

On top of all the life stresses, house extension may seem a daunting task. Our specialized architects and the expert designing team will be with you at every step and will help you to select your desired extension, through the detailed planning from the initial level and designing, planning permission (if required) and on the  construction work. We provide a tailor-made extension work to meet your lifestyle choice and budget. To ensure a stress-free project, we appoint a dedicated project manager, who will be responsible for keeping you aware of the progress of your extension, set up regular meetings, and to answer any of your questions to create the unique bespoke design and style of your desire.

As a Loft Conversion Specialists Stanmore

House extension London has specialization in loft conversion in Stanmore. We know the importance of building an extension within time and as smoothly as possible. Get a clear and concise quotation from our expert, and understand what exactly you will get within your budget.

Our Extension procedure

Our service includes -

  • Free site meeting
  • Detailed design development
  • Pre-construction pack
  • Hassle-free Contract
  • Building commencement
  • Completion and deployment

Get Unique Experience in Loft Conversion Stanmore

Our professional team is always intended to provide the best services. We only offer superior artistry and quality materials, and most importantly, people believe in our work and recommend us to their acquaintances. Working with loft conversion specialists Stanmore, you will experience yourself and will be guided throughout the process from initial conception to completion.

We believe in complete peace of mind of our clients and offer full public and liability insurance. We provide services as per your requirement, including conversions of loft and dormer, loft decorating services, garage conversion and many others. We are dedicated to providing you beyond your expectations.

Why should you consider an extension work?

Extension is a great way to add some extra space into your house. And if you have a growing family, or trying to off your office a home, a conversion CA put some real value into it. Either you can use this space as a storage to keep all junk and empty boxes and turn that place into such a cozy and lovely place.

Why Loft Conversion is the best idea for Stanmore Residents?

Stanmore can be considered as the best place to live in London, where you can get the extra space you always wanted, and it can also increase the property value tremendously.

The problem you may face in Loft Conversions

  • A few people can complain about unexpected overrun of cost, which is enough to leave them frustrated and dissatisfied with the project.
  • Due to some climatic reason, extension work can get delayed, which can cause inconvenience.
  • Might be at any point in time, you may feel that you are not getting what you have been promised.

What House extension Stanmore can do for you -

  • We provide our clients with detailed quotations, to meet their requirements and their budget.
  • We discuss each aspect and share our opinions, and implement them if you approve, We don't believe in any "hidden and surprise".
  • We follow the project schedule at any cost, and if there are any unavoidable delays, we do overtime to keep the project as per the committed timeline.
  • We accept final payment only once our work is done.

Choose your desired one from various options -

  • Roof loft conversion - This is the most cost effective and convenient conversion idea. Which just needs to add windows, with a few structural work.
  • Dormer loft conversion - This most opted conversion can add and increase the roof space with ease.
  • Hip to gable conversion - This mostly goes with the semi detected, where the roof side slope gets removed and a vertical gable gets built up.
  • Mansard loft conversion - it can help to create a new volume into your extension work.

If you are enthusiastic about the conversion, and planning and want to take an active role in extension work, kindly learn everything from initial level to the completion . Extension work seems so satisfying but it includes so much complexity and a small mistake may cause a serious risk for your family.

Let House Extension London professionals get the work done, while you sit relaxed and enjoy your desired space once it's done.

Frequently Asked Questions about House Extensions in Stanmore

A house or kitchen extension is an investment in your home, so we know you will have a few questions before you get started.

  • How long will my House Extension take in Stanmore?

    A standard house extension takes between 7 to 9 weeks for the initial build. And a further 5-7 weeks for installation of kitchen and other facilities. Overall, there size of the building and the scope of the extension are the major factors on how long the house extension will take.

  • How quickly can you start an Extension at my Stanmore property?

    Our lead times are currently at 3-4 weeks, assuming you have the architectural plans, structural calculations, and party wall notices ready. House Extension London have teams all over London and the home counties. Wherever you are based, we can get your house or kitchen extension started in as little as two weeks. If you have any questions, contact our highly experienced team who will guide you through the whole process in much more detail.

  • How much value will be added to my house in Stanmore ?

    House extension is one of the fastest and most effective way to add value to your house. An expertly constructed and finished house or kitchen extension can add up to 25% value to your house. It’s a fantastic amount of value added to your house instead of spending this on stamp duty when moving home. At House Extension London, we believe you should prefer moving up instead of moving out.

  • How long will plans take to draw if we decided to go with House Extension London?

    Our process of House extension in Stanmore starts with a site survey where our surveyor will visit your property and guide you on what is possible. All this will be free of charge as it’s a no-obligation quotation. After the site visit, you will be provided with a rough quote until we have the structural calculations ready. Once you are happy with the quote, we will draw a contract to be signed and give you a start date. House Extension London tries to cater for all our customers needs and we are proud to be one of London’s best extension builders.

  • How long are your quotations valid for?

    We review our prices every quarter to take into consideration price increases of materials and inflation too. Our quotations are therefore value for up to four months. In this time period, you can alter your quote to suit your needs if needed. We will work alongside you to alter any design you want until you are fully satisfied with it.

  • What size of an extension can I build under Permitted Development?

    Permitted development guidelines for the house extension size can vary based on the type of property you are extending. As a general estimate is that 3m is allowed for a terraced and semi-detached properties. Detached properties can get up to 4m without planning permission.

  • When do you need planning permission for an extension?

    You will need planning permission for an extension when the design and size of the extension exceeds the provisions of permitted development. If you live in a flat or conservation area you will need to apply for planning permission regardless of the design and size of the extension.

  • How long does planning permission take for a house extension?

    Once the planning application has been submitted to the local authority, it can take up to 8 weeks. It takes between 4 to 8 weeks for an architect to prepare and submit the plans. Ideally, we suggest to give at least 3 months in advance for the construction company to start the process.

  • Will my Boiler work effectively with my new House Extension?

    By adding a house extension, the demand for current hot water and heating systems will increase. You might need to change to a new boiler that has a bigger output. Many homes tend to install a hot water cylinder when extending their property to the rear.

  • What do I need to know about the Party Wall Act?

    Your neighbours cannot stop you from constructing up to, or even on, the boundary between your properties, even if it requires access onto their land. This issue is not covered by planning or building control. If you are undertaking a house extension that involves digging or building foundations within 3m of the boundary, party wall or party wall structure, or digging foundations within 6m of a boundary, this sort of work will require you to comply with the party wall act. You will need a surveyor to act on your behalf. Such an act does not apply in Scotland.

  • What if my House Extension is near or on a Sewer?

    If your house extension will be built over or near a seer, you have to contact your local water board before work commences. In many cases, your architect will have to draw plans on how you intend to change the pipework, and these will be submitted to the water board for approval. It can take up to 3-4 weeks to get this approved and we strongly suggest not to start any work before obtaining a letter of approval.

  • Can I stay on site during the house Extension?

    Yes, it is normal to live on the site throughout the house extension, however there will be dust and mess and it can slow down the progress as the builders will try to work around your life. If you are not prepared to live with the disruption, then you should surely look for temporary accommodation especially during the dusty stage.

  • Do I need to inform building control of my house extension?

    Yes, before you commence your construction project, you will need to submit either a building notice or a full planning application to building control. A building notice will allow you to start the work quickly but there will be lack of protection that a building control has signed off on the construction work. In this case, you will be liable to correct any work that faults to meet building regulations standard upon inspection.

  • Building regulations in Stanmore

    Regardless of whether planning permission is required or not, any sort, any construction project must comply with the building regulations. You need to make sure that whoever undertakes the work can self-certify the work, for example, FENSA accredited window fitters, Gas Safe engineers, NIXEIC registered electricians and so on. If these requirements are not met, you could be served notice to take the extension down and will have trouble selling your home without relevant building regulations certificates.

  • How to brief an architect before starting our project?

    Before starting your house and kitchen extension, its vital you give as much information as possible on what you want from the house extension, your timings, how and when you intend to pay them and what penalties will be in place if deadlines are missed. The architect will send you a detailed plan and a contract to sign.

  • How to get Structural engineer calculations?

    If your house extension requires any structural changes to your home, you may need a structural engineer. A structural engineer can provide the technical drawings and calculations which can be used to get building regulation approval. This will also be used by the construction company during the house extension work.


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