South London’s leading…

House Extension South London

At Detailed Planning, we pride ourselves on providing you with an expert, reliable and professional service. Every client and every project are treated with excellent care to ensure the success of your project.

Or call us now on 020 8150 0494

Home Extension Services in South London

 House extensions are an excellent way to make the most of your property and to create a space that truly reflects your home. Whether you need additional rooms or simply want to open up the space you already have, we can help maximise your vision.

Extending your South London home not only allows you to expand your living space but it can also increase the value of your property. More and more people are recognising the benefits of home extensions, but many are discouraged by the fear of failure or expense. Especially when considering recent times and the pandemic, many people are designing new spaces that incorporate the new normal Therefore, our practice combines experienced designers with an expert service to deliver high quality house extension plans for our clients.

Here at Detailed Planning in South London, we work closely with our clients to explain the process from start to finish whilst creating a design that will ensure a successful extension that can be enjoyed for years to come. We will combine your brief with our expertise to design an extension that is individual to you.

Property Extension Design & Build Services in South London

Should you be looking for house extension services in South London, you’re in the right place, Detailed Planning have got you covered. We specialise in providing new extensions for properties across South London and the surrounding areas. Should you need further information or have any questions regarding our extension services, simply call our professional team today. Having been creating unique extension designs for our customers across South London for a number of years, our professional team of specialists will ensure that they work closely alongside you to make sure that we fully understand your requirements and provide you with an extension service of the highest standards. 

We’ve been providing home extensions for clients across South London for many years and this has allowed us to develop a renowned reputation for providing an excellent services. We pride ourselves on the high level of extension installations that we offer and the fact that we constantly go the extra mile for all of our customers in South London. We’ve been offering our extension services across South London for a number of years now, so you can rest assured that you’re in good hands with our experienced team. If you require any additional information on the extensions we offer across South London, for more information and advice call Detailed Planning today. 

South London House Extensions Services

1. Design

Whether your family is growing, and you need an extra bedroom, or you want a new bright modern open plan living; we can help find a solution to maximise your space. Here at Detailed Planning, we have a team of trained designers that are specialised in creating amazing spaces for all types of briefs. We understand the cost of developing a property, so we’re sensitive to our costs and guidance. We aim to help you stretch your money enough to get the best results! Read More Here

2. Get Approved

We are experts at obtaining planning consent for house extensions. If your house benefits from permitted development rights, we’ll complete the necessary drawing and documents to demonstrate your proposal falls within permitted development guidance. Should your house extension require planning consent, we can give you the best chance of planning consent by acting as your agent throughout the process. Read More Here

3. Technical

This is the stage where the detailed technical drawings are carried out by our design team. We believe in providing extra detail so your builder construction your project with the quality it deserves. Remember, in order for a project to go accordingly, having a good, detailed set of drawings is crucial. Read More Here

4. Ready. Set. Go

At last! Your dream home is now ready to go under construction! This is all very exciting and you now have all the relevant drawings to hand. At this point of the project, we provide a continued support service, so feel free to call us whenever you like. All that’s left to do now is grab a cup of tea and relax!

Bespoke House Extension Case Study

This house extension project exceeded our client’s expectations and created a space for their family to enjoy for years to come.

Looking For More South London House Extensions Ideas? Here’s Some of Our Favourites

If you are looking to get a home extension in South London, look no further, at Detailed Planning we’ve been offering extensions across South London for a number of years. Our professional team can be on hand and will cover all aspects of property extensions. If you are choosing to have an extension in order to create more room or storage, or to avoid moving to a new home, our team of builders has got you covered. We’re specialists and we also have all the skills and knowledge required to make sure that your extension meets all of your needs.

If you’re interested in house extensions and are based in South London or the surrounding areas, simply call Detailed Planning today, our company has got you covered. Our team of highly experienced professionals can assist with all aspects of your home extension. Regardless of how small or large the project is, we’re confident that we can transform your home for the better. Should you have any queries on the house extensions we provide across South London, please call our team of extension builders today.

Excellent service. Paul is very thorough and took his time to make his decisions and explain them to me. He is friendly and helpful and has a ‘can do’ attitude.

Would definitely recommend for any detailed drawings required, we got them in late in the day to provide building regs drawings, were really efficient in completing within the required timescales and went into a lot of detail to make sure everything was right.

I felt in very capable hands and expertly advised. I’d highly recommend Detailed Planning. Our new loft conversion has maximised the space available to us. 

Why Choose Us For Your House Extension Project?

Having offering property extensions in South London for many years now, we should be the first port of call when it comes to being in search of South London house extensions. Regardless of your specific needs and requirements, we can always be on hand to provide you with the best service. As well as providing top quality home extensions, we also pride ourselves on providing superb customer care and attention to detail. From keeping things clean and tidy to the end results of your extension, Detailed Planning are the leading choice for those who are in search of property extensions in South London. Our specialist team and extension builders can work with all of your requirements as well as accommodating your services to your budget, giving you complete customer satisfaction. Simply today for property extensions in South London and we’ll take care of all your needs.

Having been designing and building property extensions for customers in South London and throughout the surrounding areas for a number of years. Here are just some of the main reasons why we’re popular for extensions in South London…

  • Range of extension styles to choose from
  • Years of experience in the industry
  • Well-known throughout South London
  • Full design service available

Your #1 Property Extension Company

Understanding Your Project Goals

When we begin, we’ll take time to understand your brief, you may also have ideas of how your house extension will look. We’ll take this into consideration but also consider costs, planning constraints and buildability. There’s no point designing something that can’t be built!

Striving to Create Quality Spaces

Our number one goal is to create spaces that meet requirements and go beyond the expectations of our clients. We love to hear that our clients are enjoying their new extension and this gives us the energy to go on.

Believe In Quality Design for Everyone

Good design should not be limited to some Architects only. We are here to provide excellent architectural environments to all, at a more realistic cost compared with some architect fees.

Pushing Technical Detail

Every house extension project is unique and ensuring it is buildable should be considered from the outset. Should we provide technical drawings, we’ll make sure risks on site are reduced by considering all parts of your project. This should lead to overall cost savings and minimised delays.

High Planning Success Rate

We never take on a project where the principle of the development seems unlikely to be approved. During the design, we’ll use our knowledge and check planning policies to give your application the best chance of success. We have worked with many authorities and understand how planning applications are decided.

Flexible Design Approach

We are not fixed to one design style; therefore we can be used for realist house extension design to ultra contemporary. We will listen to your brief and design a bespoke extension meeting your needs.

Free Quote

Want to talk about your project? We carry out a free review of each enquiry to ensure there is a reasonable chance of success.

Our quotes are free and we can provide free office consultations should your project be viable.

Single Storey House Extension Plan Fees

Whilst every project is entirely unique; presenting its own challenges, demands, and goals, we can give an idea for ball-park fees for various levels of service.

Site Visit/Measure

  • Consultation to Review Brief
  • Laser Measure of Your Property
  • Floor Plans and Elevation Measure
  • Existing Drainage and Property Investigation
  • Photographic Schedule
£250 +vat

*this price is an estimate based on previous project, not an actual quote

Drafting/Design

  • Existing Drawings
  • Proposed Drawings
  • Up to 3 free revised drawing sets
  • Planning application preparation (exc. council fee)

  • Act as your planning application
  • Negotiations and revisions with your case officer to achieve a successful application

£650 +vat

*this price is an estimate based on previous project, not an actual quote

Technical

  • Building regulation specification
  • 1:50 detailed plans
  • 1:50 section drawing
  • 1:10 detailed sections
  • Submission and liaising with Building Control (excl. fee)

  • Liaising with other consultations, i.e. engineer and party wall surveyor

£700 +vat

*this price is an estimate based on previous project, not an actual quote

£250 +vat

*this price is an estimate based on previous project, not an actual quote

£650 +vat

*this price is an estimate based on previous project, not an actual quote

£700 +vat

*this price is an estimate based on previous project, not an actual quote

For House Extensions in South London​ call Detailed Planning Today

When it comes to property extensions in South London or any of the surrounding areas, be sure to contact Detailed Planning. We have years of experience in the industry, we have all of the skills and knowledge needed to create the perfect extension for you. Whether it’s a small home extensions or a multi-storey extension, our extension builders have all of your needs covered. If you’re interested in having an extension built, then be sure to get in touch with us to discuss your requirements, we can provide a range of advice.

When it comes to our services, we provide them in and around London, this includes Barnet, the Cheshunt area, Edgware, St Albans, Harpenden and Enfield. We also offer our services in Finchley and across Harrow. We offer our house extension services in North London, the South London area, across East London and West London.

FAQs

Do I need an architect for an extension?

It’s always a good idea to work with an architect for any significant changes to your home, as they can help ensure that the design is functional, safe, and meets any necessary standards. An architect can also help with the planning and building control process and provide valuable guidance and expertise throughout the project to ensure it goes smoothly. You can trust that Detailed Planning will have the knowledge and experience to help you achieve the extension of your dreams.

Do I need an architect for a small extension?

Even a small extension can involve complex structural and design considerations, so it’s worth consulting with an architect to ensure the project succeeds. Detailed Planning can help you create a functional, safe, aesthetically pleasing design, achieves your goals, and provides valuable guidance and expertise throughout the project. You can trust that an architect will have the knowledge and experience to help you achieve the extension of your dreams, no matter the size.

How much does an architect cost for an extension?

The cost of hiring an architect for an extension can vary depending on the size and complexity of the project, as well as the location and any local building codes or regulations that apply. Architects generally charge an hourly rate or a percentage of the total construction cost for their services. Some architects may also offer fixed-fee or lump-sum pricing options. Discussing the fee structure and any additional costs with your architect before beginning a project is essential. You can trust that Detailed Planning will work with you to find a pricing arrangement that meets your needs and budget.

How do I get an extension on my house?

To get an extension on your house, you will typically need to follow these steps:

Determine the scope and type of extension you want to build. Consider factors such as your budget, the size and layout of your property, and any local building codes or regulations that may apply.

Consult with an architect or building designer to design the extension. They can help you create a functional and aesthetically pleasing design that meets the necessary standards.

Obtain any necessary approvals from your local council or other regulatory bodies. This may involve submitting plans and drawings and paying any fees.

Hire a contractor to build the extension. Depending on the project’s scope, you may also need to hire additional professionals, such as an engineer or a surveyor.

Monitor the construction process and ensure everything is being built to your satisfaction.

How much does an architect cost for a house extension?

The cost of hiring an architect for a house extension can vary depending on the size and complexity of the project, as well as the location. Architects generally charge an hourly rate or a percentage of the total construction cost for their services. Detailed Planning offers fixed-fee or lump-sum pricing options. Discussing the fee structure and any additional costs with your architect before beginning a project is essential.

How much does it cost for house extension plans?

The cost of house extension plans can vary depending on the size and complexity of the project, as well as the location and any local regulations that apply. Architects generally charge an hourly rate or a percentage of the total construction cost for their services, including creating plans and drawings. Detailed Planning offers fixed-fee or lump-sum pricing options. Discussing the fee structure and any additional costs with your architect before beginning a project is important.

How much does a structural engineer cost for a house extension?

The cost of hiring a structural engineer for a house extension can vary depending on the size and complexity of the project. Structural engineers typically charge an hourly rate or fixed fee for the project. Typical fees can range from £1000 to £2000.

How much is the average house extension in the UK to build?

The cost of building a house extension in the UK can vary widely depending on a range of factors, including the size and complexity of the project. According to the Royal Institution of Chartered Surveyors (RICS), the average cost of a single-storey extension in the UK is around £40,000 to £50,000, while a two-storey extension may cost £80,000 to £100,000 or more. However, it’s essential to remember that these are just estimates, and the actual cost of your extension may be higher as this will not include the overall cost, including finishes, electrics, plumbing etc. The location also has an impact, and you should expect to pay a higher price in London.

Are house extensions worth it?

Whether a house extension is worth it will depend on your specific circumstances, including your budget, the value of your property, and your reasons for building the extension. In general, a well-planned and well-built extension can add value to your home, as well as increase your living space and improve the functionality of your home. However, it’s essential to consider the costs and benefits of building an extension carefully and consult with professionals such as an architect or building designer to ensure that the extension meets your needs and complies with any necessary regulations.

Can I build an extension on my house?

Whether you can build an extension on your house will depend on a range of factors, including the size and layout of your property, local regulations that apply, and any restrictions or covenants that may be in place. You must obtain permission from your local council or other regulatory body before beginning construction work on your property. It’s a good idea to consult with an architect or architectural professional to establish this. Detailed Planning can advise you further.

Our Drawings

Have a flick through some of our recent approved projects!

Did You Know?

We have completed over 1000 projects
We have 97.5% success rate on planning application
100% building regulations approval!

What Our Clients Say