Free Home Renovation Consultations Available Across the West Midlands

House Extension Specialists in Birmingham

If your home is starting to feel too small, you’re far from alone. Growing families, home working and simply wanting more space to live in are some of the most common reasons Birmingham homeowners get in touch with us about a house extension.

At West Midlands Renovation Specialists, we design and build single and double storey extensions across Birmingham and the wider West Midlands. From the first conversation through to the final coat of paint, our team manages the whole project, so you don’t have to juggle multiple tradespeople or worry about who’s doing what.

Whether you need a bigger kitchen, an extra bedroom, or simply more room to breathe, an extension can often achieve what you’re after without the upheaval of moving house. Every design is tailored to your property and how your family actually lives, not a one-size-fits-all template.

We offer free surveys and quotations, so you can explore your options with no pressure to commit. Our builders are experienced, fully insured, and used to managing projects from start to finish with clear communication throughout.

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07840 113043

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Why Homeowners Choose West Midlands Renovation Specialists

Experienced & Skilled Team

Every renovation is completed with attention to detail, using quality materials and skilled tradespeople who take pride in delivering lasting results.

Complete Home Renovation Services

Whether you’re planning a new kitchen, house extension, garage conversion, replacement windows, roofing, or landscaping, we provide a complete service under one roof.

Honest Advice & Transparent Service

We believe in straightforward pricing, honest recommendations, and keeping you informed throughout your project, so you always know what to expect.

Why Choose a House Extension?

Moving house is expensive, stressful and, for a lot of families, simply unnecessary if the real problem is that the current home has run out of space. That’s usually where an extension comes in.

Growing families are one of the most common reasons homeowners get in touch. A second child, a teenager who needs their own room, or ageing parents moving in can all mean the existing layout no longer works. Rather than starting the search for a bigger house, many people find it makes more sense to create the space they need where they already are.

Working from home has also changed what people expect from their properties. A spare corner of the bedroom or the end of the dining table isn’t always a practical long-term setup, and a dedicated home office extension can make a real difference to how a working day feels.

Other common reasons for extending include wanting a larger kitchen and dining area for family life, adding an extra bedroom, or simply investing in a property you plan to stay in for years to come.

Extending your home means you get to stay in the area you know, close to schools, family and everything else that comes with putting down roots somewhere. It also avoids the costs that come with moving, from estate agent fees to stamp duty, while potentially adding value to your property at the same time. Done well, an extension gives you a home that actually suits how you live, rather than one you’re trying to fit around.

House Extension Services We Offer

Every property and every family is different, which is why we offer a range of extension types rather than a single fixed approach.

Single storey extensions. Often used to extend the kitchen or create additional living space on the ground floor, single storey extensions tend to be a more affordable way to add useful space. Read more on our Single Storey Extensions page.

Double storey extensions. For homeowners who need more than just extra ground floor space, a double storey extension can add bedrooms or bathrooms upstairs at the same time, often offering better value per square metre than building single storey alone. See our Double Storey Extensions page for more detail.

Rear extensions. One of the most popular choices in Birmingham, rear extensions typically open up the back of the property to create larger kitchen-diners or family living spaces. Visit our Rear Extensions page to find out more.

Side extensions. Where a rear extension isn’t possible or practical, a side extension can make use of an alleyway or side return to add valuable extra space, particularly in terraced and semi-detached homes. Our Side Extensions page covers this in more detail.

Wrap-around extensions. Combining both a rear and side extension, a wrap-around gives you the largest possible increase in ground floor space, often transforming how a kitchen and living area feels.

Kitchen extensions. For many households, the kitchen is the heart of the home, and extending it to create an open-plan kitchen-diner is one of the most requested projects we work on.

Open-plan living extensions. If you’re looking to knock through and create a bright, open living space that flows from room to room, we can design an extension around that goal specifically.

Whatever type of extension you’re considering, our team can talk you through what’s realistic for your property and help you settle on the option that fits your budget and lifestyle.

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Single vs Double Storey Extensions

One of the first decisions homeowners face is whether to build a single storey or double storey extension. Both have their place, and the right choice usually comes down to your budget, your property and what you actually need more of.

Single storey extensions are generally the more affordable option, since they involve less structural work and no need to tie into the upstairs of the property. They work particularly well for kitchen extensions or adding extra living space on the ground floor. For many homeowners, a single storey rear extension is enough to solve the space problem they’ve been living with.

Double storey extensions cost more to build, but they add space both upstairs and downstairs at the same time. If you need an extra bedroom or bathroom as well as more room on the ground floor, building both storeys together is often more cost-effective than doing them separately at different times. Many homeowners also find that double storey extensions offer stronger long-term value, since you’re maximising the space added for the groundworks and foundations required.

Neither option is automatically the right one. A young couple planning to extend their family in future might lean towards a double storey extension for the extra bedroom, while a homeowner who just wants a bigger kitchen might be perfectly served by a single storey build. Every property also has its own constraints, from garden size to boundary lines, that can affect what’s actually achievable.

This is exactly the kind of decision a home survey helps with. Once we’ve seen your property and understood what you’re hoping to achieve, we can talk through which option makes the most sense.

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Our House Extension Process

Building an extension is a significant project, so we keep the process structured and easy to follow from beginning to end.

  1. Initial consultation. We start by discussing what you want from the extension and answering any early questions.
  2. Property survey. Our team visits your home to assess the site, boundaries and any structural considerations.
  3. Design and planning. We put together a design based on your requirements, working through layout options with you.
  4. Quotation provided. You’ll receive a detailed, itemised quotation covering the full scope of the project.
  5. Planning permission (if required). Where planning permission is needed, we guide you through the application process.
  6. Construction begins. Groundworks, structural work and building all take place under dedicated project management.
  7. Final completion and handover. Once the build and finishing works are complete, we carry out a final walkthrough with you.


Throughout the process, you’ll have a clear point of contact and regular updates on progress, so you always know what stage the project is at and what’s coming next.

How Much Does a House Extension Cost in Birmingham?

House extension costs vary considerably depending on the size, type and specification of the build, so it’s worth understanding the general factors before getting an exact figure.

Small single storey extensions, such as a modest kitchen extension, tend to sit at the more affordable end of the scale, particularly where groundworks and structural changes are relatively straightforward.

Large single storey extensions, including wrap-around builds or open-plan kitchen-diners, cost more due to the increased size and often more complex design requirements.

Double storey extensions generally represent a bigger investment, since they involve more structural work, additional materials and a longer build programme, but they also add more usable space in return.

Kitchen extensions can vary widely in cost depending on whether you’re simply adding floor space or also reconfiguring the kitchen layout, adding roof lanterns, bi-fold doors or other higher-spec features.

A number of factors influence your final quotation, including:

  • The overall size of the extension
  • The complexity of the design, including features like roof lanterns or large glazing
  • Groundworks, which can be affected by ground conditions and drainage
  • Structural requirements, such as steel beams for open-plan spaces
  • The finish and specification you choose throughout


Because every extension is different, we don’t quote fixed prices without seeing the property first. A free survey allows us to assess your garden, boundaries and existing structure properly, so the quotation you receive reflects your actual project rather than a generic estimate.

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Do You Need Planning Permission for a House Extension?

This is one of the first questions most homeowners ask, and the answer depends on the size, position and design of the extension you’re planning.

Many single storey extensions fall under permitted development rights, which allow certain extensions to be built without a full planning application, provided they meet specific size and design limits. Double storey extensions, extensions that extend beyond permitted development limits, or those on properties with removed permitted development rights, are more likely to require a full planning application.

Regardless of whether planning permission is needed, building regulations approval almost always applies. This covers structural safety, insulation, fire safety and other technical standards that every extension must meet.

If your extension is built close to a shared boundary with a neighbouring property, party wall considerations may also come into play, and you may need to serve formal notice under the Party Wall Act before work begins.

We guide clients through this process as part of our service, and where a planning application is required, we can assist with putting it together. For anything involving specific legal interpretation of planning law, we’d always recommend confirming directly with Birmingham City Council’s planning department or a qualified planning consultant, particularly if your situation is more unusual.

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Benefits of a House Extension

An extension is a significant investment, so it’s worth being clear about what it can offer.

  • More living space. The most obvious benefit, whether that’s a bigger kitchen, an extra bedroom or a new family room.
  • Increased property value. A well-designed extension that adds genuinely useful space can be attractive to future buyers, though the actual impact depends on your property and local market.
  • Improved functionality. Beyond simply adding square footage, an extension can fix awkward layouts or make better use of an underused garden.
  • A modernised layout. Many extensions are designed alongside some reconfiguration of the existing space, giving the whole ground floor a fresh, more open feel.
  • Better lifestyle flexibility. Extra space can adapt as your needs change, from a playroom that later becomes a teenager’s bedroom, to an office that becomes a guest room.
  • Avoiding the cost and stress of moving. Extending lets you stay in a home and area you already know, without estate agent fees, stamp duty or the upheaval of a full house move.


For many homeowners, an extension isn’t just about adding space. It’s about getting more use and enjoyment out of a home they already love.

Why Choose West Midlands Renovation Specialists?

Building an extension is one of the bigger projects most homeowners will ever take on, so choosing the right team matters.

We’re a Birmingham-based company with an experienced construction team behind every extension we build. All work is carried out by our own team, and we’re fully insured throughout every stage of the project.

Quality workmanship is central to how we operate, alongside quotations that are transparent from the outset, with no unexpected extras once the build is underway. We manage the entire project ourselves, from the initial survey through design, planning and construction, right through to final handover.

Much of our work comes from recommendations by previous customers, which reflects both the standard of the finished extensions and the way we look after people throughout the process.

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Areas We Cover Across Birmingham

We build house extensions across Birmingham and throughout the wider West Midlands. Our team regularly works in areas including Sutton Coldfield, Solihull, Harborne, Edgbaston, Moseley, Kings Heath, Yardley, Northfield, Erdington, Great Barr, Selly Oak, Bournville, Longbridge, Handsworth, Perry Barr, Hall Green, Acocks Green, Hodge Hill, Castle Bromwich, Sheldon, Quinton, Bearwood, Smethwick, Oldbury, West Bromwich, Walsall, Dudley, Halesowen, Bromsgrove and Redditch.

Wherever you’re based across Birmingham and the surrounding West Midlands, our team has experience with the different property types and building styles found throughout the region, and we’re happy to arrange a free survey at a time that suits you.

Ready to Extend Your Home?

If you’re looking to create more space, improve your home’s layout or increase its value, our team can help design and build the perfect extension for your property.

Whether you’re picturing a larger kitchen-diner, an extra bedroom for a growing family, or simply more room to live comfortably, an extension can often give you exactly what you need without the cost and stress of moving.

We offer free surveys and quotations, so you can explore your options with no pressure to commit. Our team is experienced, fully insured, and based right here in Birmingham, ready to manage your project from the first consultation through to the final handover.

Speak to Our Team on 07840 113043 or Request a Consultation using our online enquiry form. There is no pressure and no obligation.

Frequently Asked Questions

Costs depend on the size, type and specification of your extension, along with factors like groundworks and structural requirements. Small single storey extensions cost less than large or double storey builds. A free survey is the best way to get an accurate figure.

Many single storey extensions fall under permitted development rights, though this depends on the size and position of the build. Double storey extensions and larger projects are more likely to need a full planning application. We can advise on your specific situation.

Timeframes vary depending on the size and complexity of the build, including whether planning permission is required beforehand. We’ll give you a realistic estimate as part of your quotation once we understand the full scope of the project.

A well-planned extension that adds genuinely useful space can appeal to future buyers, but the actual impact on value depends on your property, location and how the work is finished. We can’t guarantee a specific increase.

In most cases, yes, particularly with single storey extensions where work is largely contained to one area. Larger or double storey projects may involve more disruption at certain stages, which we’ll talk through with you during planning.

This depends on your garden size, budget, boundaries and what you’re hoping to achieve. A single storey extension might suit a kitchen upgrade, while a double storey build may be better if you need more bedrooms too. A survey helps clarify what’s realistic for your specific property.

In many cases, yes, though sloped driveways often need additional groundwork and edge restraints to stop gravel from shifting downhill over time. We’ll assess this during the site survey and recommend the right approach for your property.

Yes, we offer free surveys and quotations for every house extension project, with no obligation to proceed.

We cover Birmingham and the wider West Midlands, including areas such as Solihull, Sutton Coldfield, Dudley and Halesowen. Get in touch to confirm coverage for your area.

Yes, from the initial consultation and survey through to design, planning, construction and final handover, we manage every stage so you have a single point of contact throughout.

Trusted By Homeowners Across the West Midlands

Read More Of Our Reviews

“We couldn’t be happier with the work completed by West Midlands Renovation Specialists. From the initial consultation through to the finished project, the team was professional, reliable and always kept us informed. The quality of workmanship exceeded our expectations.”

- Sarina M

“Excellent service from start to finish. The quotation was clear, the work was completed on schedule, and the finished result is fantastic. We wouldn’t hesitate to use West Midlands Renovation Specialists again.”

- Emma T

“Our kitchen renovation has completely transformed our home. The team were friendly, hardworking and paid great attention to detail throughout the project. We would definitely recommend them to anyone planning home improvements.”

- Adam R

Ready to Transform Your Home?

Whether you’re planning a house extension, kitchen renovation, bathroom upgrade, garage conversion, new roof or any other home improvement project, our experienced team is here to help.

We’ll take the time to understand your ideas, discuss the options available, and provide honest, professional advice tailored to your property and budget. From the initial consultation through to project completion, we’re committed to delivering high-quality workmanship and excellent customer service.

Contact West Midlands Renovation Specialists today to arrange your free, no-obligation consultation and take the first step towards creating the home you’ve always wanted.