Double Garage Conversion Specialists in Birmingham
A double garage is one of the largest single spaces many Birmingham properties have going unused. If yours is mostly storing things you’d struggle to name off the top of your head, it could realistically become one of the most valuable rooms in your house.
At West Midlands Renovation Specialists, we design and build double garage conversions from start to finish, handling everything from the initial design through to the final fit-out ourselves. The extra floor space a double garage offers opens up options that a single garage simply can’t, whether that’s a self-contained annexe, a large home office, a cinema room, or several smaller rooms combined.
Many homeowners reach a point where the house feels too small, but moving isn’t practical or affordable. A double garage conversion is often one of the more significant ways to add space without extending the house or going through the disruption and cost of relocating.
Every project is backed by full insurance and clear project management throughout, so you always know what’s happening and when.
Get a Free Double Garage Conversion Quote or book a Free Consultation with one of our conversion specialists.
Call Us At
07840 113043
Arrange Your Free Home Renovation Consultation
Complete the short form below and a member of our team will contact you shortly to discuss your project, answer any questions, and provide expert advice on the best solution for your home.
By submitting this form, you agree to be contacted by West Midlands Renovation Specialists regarding your enquiry. We will only use your information to discuss your project and will never send spam or unrelated marketing. Please see our Privacy Policy for more information.
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 Convert a Double Garage?
A double garage typically offers considerably more floor space than most homeowners realise, and that space is often doing very little beyond housing things that don’t have a home elsewhere.
Because of the size involved, a double garage conversion can go further than a single room. Depending on the layout, it’s often possible to create more than one space, or a single larger room that would be difficult to achieve anywhere else in the house without a major extension. This makes it a more affordable route to significant extra space compared to building outward, while still adding real value to the property.
We see double garages converted for all sorts of reasons. Some households need a proper home office and a home gym, and a double garage can accommodate both. Others want a bedroom with an en-suite for a relative or regular guests. Some are looking at a self-contained annexe, complete with its own kitchenette and bathroom. Others simply want a cinema room, a family room, a games room, or an open-plan space for entertaining that the rest of the house doesn’t have room for.
Whatever the priority, the amount of floor space involved usually means there’s more flexibility in what’s achievable than homeowners initially expect.
What Can a Double Garage Be Converted Into?
The extra space in a double garage means it can be shaped around what a household actually needs, rather than being limited to a single small room.
A home office and meeting room works well for anyone who occasionally needs to see clients as well as handle day to day work, since the additional space allows for a proper separate area. A guest suite gives visiting family or friends somewhere comfortable and private to stay, while a self-contained annexe takes this further with its own kitchenette and bathroom, often suited to a relative wanting independence while living close by.
A home gym makes good use of the space without needing to sacrifice a room in the main house, and a double garage often has enough room for a reasonable range of equipment. A cinema room is a popular choice for households wanting a dedicated space for films, and benefits from the enclosed, adaptable nature of a garage.
An open-plan family room can bring the household together in a way a smaller conversion can’t, while a games room suits families with older children wanting somewhere of their own. For some homeowners, particularly those considering rental income or accommodation for adult children, a studio apartment layout, combining a living area, small kitchen and bathroom, is a realistic option given the space available.
Which of these makes sense depends on your garage’s layout and condition and what your household needs most. Our main Garage Conversions page covers the general process, and if you’re deciding between a double garage and a smaller space, our Integral Garage Conversions and Detached Garage Conversions pages cover those alternatives in more detail.
Benefits of a Double Garage Conversion
The scale of a double garage conversion is what sets it apart from smaller garage projects. Because there’s more floor space to work with, it’s often possible to create more than one living area within the same conversion, rather than a single room.
This tends to make it a strong long-term investment. Adding a genuinely useful, well finished space of this size is generally considered a valuable improvement to a property, and the flexibility it offers matters just as much as the value itself. A double garage converted into an annexe today could become a separate living space for an adult child, then later a guest suite or home office as circumstances change.
Compared to moving to a larger property, converting an existing double garage is usually far less expensive and considerably less disruptive. You keep the home you’re in while gaining space that changes how the property works for your family, making better use of a building that was likely adding very little day to day value beforehand.
Our Double Garage Conversion Process
We keep the process clear and straightforward from the first conversation through to handover.
- Initial consultation. We talk through what you want the space to become and how your household will use it.
- Property survey. Our team assesses the garage’s structure, condition and existing services.
- Design and planning. We put together a layout suited to your requirements, which may include more than one room depending on the space available.
- Detailed quotation. You receive a clear breakdown of costs based on the agreed specification.
- Building regulations approval. We manage the necessary paperwork and inspections.
- Construction works. Insulation, electrics, plumbing where needed, and any structural work are carried out.
- Internal finishing. Flooring, fittings and finishes are completed to the agreed spec.
- Final inspection and handover. We check everything meets the required standard before handing the space over to you.
You’ll have a dedicated point of contact throughout the project, with clear communication about progress, so there’s no guessing what stage things are at, even on a larger conversion.
How Much Does a Double Garage Conversion Cost in Birmingham?
Costs vary considerably depending on the scope of the project, so it’s worth thinking about it in general terms rather than a single fixed figure.
A basic double garage conversion, covering insulation, electrics and simple finishes across the space, sits at the lower end and suits uses like a gym or a straightforward family room. A home office conversion typically follows a similar specification, with particular attention paid to internet connectivity and a comfortable working environment across a larger footprint. Luxury living space conversions, such as a cinema room or a high-specification entertaining area, cost more due to the finishes and features involved. Self-contained annexe conversions tend to sit at the higher end, since they involve plumbing for a kitchen and bathroom alongside full insulation and finishes throughout.
Several factors affect the final price:
- The size of the garage and how much of it is being converted
- Whether structural alterations are needed
- Plumbing and electrical work, particularly for annexes or multi-room layouts
- The level of insulation required
- The heating system chosen
- Internal finishes throughout the space
Because every garage and every homeowner’s requirements are different, we don’t publish fixed prices online. The most accurate way to get a figure for your project is a free survey, where we can assess the space and put together a detailed quotation based on what you actually need.
Do You Need Planning Permission for a Double Garage Conversion?
Many double garage conversions fall under permitted development rights, meaning planning permission isn’t always required, particularly where the building’s use changes without significant external alteration.
Building regulations approval is generally required regardless of planning permission, covering insulation, electrical safety and structural standards, and becomes more involved where plumbing or multiple rooms are being added.
Planning permission is more likely to be needed if the conversion creates a self-contained annexe or separate dwelling with its own kitchen and bathroom, since this can be treated differently to a simple change of use. It’s also worth considering how the conversion affects parking at the property, particularly if the garage is currently used for vehicles and the household relies on that space.
Requirements vary depending on your property, whether it’s in a conservation area, and your specific local council, so it’s worth checking rather than assuming. We guide you through this as part of the process and can assist with planning applications where required, though for anything legally binding we’d always recommend confirming directly with your local planning authority.
Double Garage Conversion Ideas
If you’re still weighing up what to do with a double garage, it can help to think about what the household is currently missing.
A self-contained annexe suits a relative who wants independence while living close to family, and is often the most involved option but also one of the most valuable long term. A luxury home office takes advantage of the extra space to include a proper meeting area alongside your working setup. A home gym and wellness room can bring together exercise equipment and a quiet space to unwind, without needing to give up a room indoors.
A cinema room makes use of the enclosed nature of a garage particularly well, since it’s naturally suited to blocking out daylight and external noise. A games room gives older children or teenagers somewhere of their own. An open-plan entertaining space suits households that enjoy hosting and want somewhere separate from the main living areas. Guest accommodation works for families who regularly host visitors and want somewhere private and comfortable for them to stay. A multi-purpose family room can combine several of these uses if you’re not ready to commit to just one.
Because a double garage offers more space to work with, it’s often possible to combine two of these ideas within the same conversion, which is something we can talk through during a free consultation.
Why Choose West Midlands Renovation Specialists?
We’re a Birmingham-based renovation company, and double garage conversions are one of the larger projects we carry out regularly across the city and surrounding areas.
Our team manages each conversion from the initial survey through to the final fit-out, so you’re working with one company throughout rather than coordinating separate tradespeople yourself. We’re fully insured, and every project is completed to a proper standard, with attention paid to the details that make a converted space genuinely usable, even across a larger, more complex layout.
Quotations are transparent and based on your specific garage and requirements, not a generic price list. We’d rather explain what’s involved and help you make an informed decision than push you towards a bigger project than you actually need.
Choosing the right company for a project of this scale often matters as much as the design itself, and we’re happy to talk through your options honestly before you commit to anything.
Areas We Cover Across Birmingham
We carry out double garage conversions across Birmingham and the wider West Midlands, 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.
If your area isn’t listed, get in touch anyway. We regularly work beyond this list and can usually confirm coverage quickly.
Ready to Transform Your Double Garage?
If you have a large unused double garage, our team can transform it into a beautiful, practical living space that adds comfort, functionality and value to your home.
Get a Free Double Garage Conversion Quote, book a Free Consultation, or speak to one of our conversion specialists on 07840 113043 to talk through what’s possible for your property.
Frequently Asked Questions
Costs depend on the size of the garage, the intended use, and whether plumbing or multiple rooms are involved. A free survey is the most accurate way to get a figure for your specific project.
Many double garage conversions fall under permitted development, though this is more likely to change if you’re creating a self-contained annexe with its own facilities. Building regulations approval is generally required regardless.
In many cases, yes. The additional floor space in a double garage often allows for more than one room, depending on the layout and your requirements.
In many cases, yes, provided the building and plumbing connections allow it. This is one of the more involved conversion types, so a survey is the best way to confirm what’s realistic for your property.
Timeframes depend on the scope of the project and whether planning or building regulations approval is needed first. We’ll give you a realistic estimate once the design and specification are confirmed.
A well finished double garage conversion is generally considered a valuable improvement, though the actual impact depends on your property and local market. We can’t guarantee a specific increase in value.
Yes, we offer free consultations and surveys, with a detailed quotation provided once we understand what your project involves.
Yes, from the initial consultation through to final handover, our team manages every stage of the conversion.
We cover Birmingham and the wider West Midlands. If you’re unsure whether we cover your area, get in touch and we can confirm.
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.