Rear Extension Ideas

1st July 2019

So you’ve got the budget and some ideas for your house extension but can’t quite decide on the layout for your rear extension. When you have your initial consultation with your chosen Architect/Architectural Technologist, they will look at different options available to your project, taking into account regulations, lifestyle, your personal design, budgets and material options. To help you choose the right layout for you we have listed a few ideas of what you could achieve. For more information, make sure that you call Detailed Planning’s planning consultant team.

Planning Your Rear Extension

It can be about creating seamless transitions from the new space to the existing, both inside and outside of your property or a completely separate space.  Rear extensions are the most popular types of residential extensions with wrap-around, double or single storey. 

No matter if you have plans on how you envision your new space will look or are searching for rear extension ideas, we’re here to help. Our architects in North London have been providing house extensions, loft conversions and architectural services for many years now, so regardless of your needs we’re confident in saying that our advice and ideas will help you to make the most of your new space and the design. With that being said, let’s get into our rear extension ideas… 

Need an Extra Bedroom?

If you have an ever-growing family and the thought of your toddlers sharing a room when they are teenagers fills you with dread, this could be a fantastic option. The norm for an extra bedroom would be to build a double-storey but if your budget doesn’t allow for this then don’t discount a downstairs bedroom. If you need the extra bedroom then the cost of this compared to moving could save a lot of money in the long term.

Bedroom extensions are popular for many reasons, from adding a new bedroom to your home to expanding what’s already there, you’d be surprised at how much extra space you will gain once your extension is completed.

Utility Room?

Thinking of building an open-plan kitchen towards the rear garden? Look into the option of adding a utility room into the design. It will save you having to shout over that noisy washing machine and tripping over those clothes dryers in the winter.

If you like the idea of having a utility room but it isn’t a big enough reason to move, then having a rear extension could help solve this. You could add a utility room to your kitchen (and also make that bigger at the same time) with Detailed Planning. We’re here to tend to all your needs regarding home extensions no matter what your reasons or requirements are.

Additional Bathroom/Shower/Toilet?

It’s said bathrooms can add 4-5% to the value of your home. Just think of what an extra toilet, bathroom or shower room could do to your day to day living in a busy family home (no more queues for the bathroom). The long-term benefits are great also for people thinking of their forever homes, as a downstairs bathroom/loo are a great help with young children and the elderly.

Whether you’d like a downstairs toilet added or an extra bathroom upstairs, our architects at Detailed Planning can help. We provide rear house extensions to suit your every need, making those mornings of getting ready for the day a lot less stressful!


Just think when the kids go to bed and you just want to sit on the sofa ready for an evening of Netflix, but now you have to spend most of your evening tidying toys away that you know will be straight back out in the morning. Imagine an evening where you don’t have to do this and you just close a door! Amazing right? You have your evenings back to enjoy. Now we’re not saying spend 30-50k on extending just for a playroom. Being clever with your layout by extending other rooms such as the kitchen could allow for you to make some internal changes that will mean you can change the use/split with other rooms to create a playroom. In the long term, this room could be used as an office, extra/guest bedroom, gym, etc!

Snug Space?

A snug is a small and private space that’s designed to offer peace and relaxation. Just think of those cosy nights on the sofa in front of a good box set. If you have a large open plan living space then adding on a snug is a great place to hide away at the end of a long day.

The possibilities are endless! You could make a snug room that’s like a date night at home, allowing you to relax and enjoy time together without having to leave the house. Not only that, but your snug space could come in handy over the years to be adapted for other uses too.

Gym? – Saving on Those Monthly Memberships

Adapting a garage is sometimes the most obvious way to create a gym at home but not everyone will have this luxury. A gym won’t add value to your property but if you choose to sell then the gym can be marketed as a spare bedroom etc. If it will suit your lifestyle and you have the space, we say go for it!

Having a rear extension is a great way to make the most of your space. Not only that, but when you’ve spoken with your designer and can see what it will look like, you’ll be sure to never miss a gym day again!


This is the most popular option for a rear extension and there are good reasons why… extra space, open plan living, adding value to your home and bringing people together in a central space. There are so many design/layout options for open plan/extended kitchens.

Your kitchen is one of the most used spaces in your home. It’s used for entertaining, cooking and enjoying time with family and friends, so if you’re currently lacking space or have extension ideas to expand, then at Detailed Planning we can help. We’re here to offer a solution that allows you to add extra space to your home. Speak to our architects in North London today about your kitchen extension ideas.

Living Room?

If you have a layout where your kitchen is in the front of your property increasing your living room or adding a new space on the back without going to an open plan design is a great option to allow for more space for a growing family.

Our back of house extension ideas are here to help you to make the most of every space within your home, and your living room is no different. Let our experts help with all your needs regarding living room extensions and be sure to call our experts today for more information.

Office – Where You Will Create Your Multi-Million-Pound Business!

Much like a playroom, this is a luxury to be able to extend only for this room so we say look at the same principles as the playroom and go by that. Top Tip for offices – if space and layout allow, place your desk facing towards a window to allow you to look out into the garden when working, this may seem counterproductive but just the little break looking out the window onto a lovely view may help you be more productive.

For More Rear Extension Ideas, Call Detailed Planning Today

We hope we have given you some inspiration for your rear extension. We also offer loft extensions as another way to create extra space in your home. Get in touch with us at Detailed Planning for your free quote for architectural services.


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10:44 23 Dec 20
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We have used Detailed Planning to help design and obtain planning for our single story extension converting our one... bedroom flat to a two bed. We have found them to be extremely helpful, communicating the process and how things work throughout. We were particularly happy with their ability to negotiate our extension depth with the planning office, resulting in 3.5 metres instead of the permitted 3m, which was crucial for our space to work. We look forward to working with them for the rest of the more
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18:55 20 Jun 19
Detailed Planning were recommended to me by a friend. We found their prices very reasonable so instructed them to draw... up plans for our extension.Right from their initial visit and all the way through to the finished plans we could not have asked for better service.Paul and Emily were always very easy to get hold of, which I'm told is not the case for all architects. They answered every query we had and solved every issue that we encountered during the planning and party wall agreements with minimal fuss and in good time. They even sorted our build over agreement for our manhole to be moved.They work extremely well with their recommended engineer, surveyor and building control company to deliver a very good package.Thank you Paul, Emily and everyone at Detailed Planning. We can't wait for our extension to be more
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