Rear Extension Ideas For 2023

by | Feb 21, 2023 | House Extension | 0 comments

An extension to the rear of your home can be an excellent way to add valuable living space and increase the value of your property. Rear extensions come in various shapes and sizes, and there are many design options to choose from.

However, before starting a rear extension idea project, it’s essential to consider factors such as budget, planning permission, and structural issues. This article will explore different types of rear extensions, design ideas, and interior design options to help you start your project.

Whether you’re looking to create a modern and minimalist space, a traditional and classic extension, or a glass extension with indoor-outdoor living, we’ve got you covered with plenty of inspiration and practical tips.

What is Rear Extension?

A rear extension is a construction project that involves adding extra living space to the back of an existing building. This can be done by extending the ground floor, adding an extra storey, or wrapping around the side of the building. Rear extension can create larger kitchens, living rooms, dining areas, bedrooms, or additional bathrooms or storage spaces.

They are a popular way to add value to a property and increase living space without moving to a new house. House extensions can be designed to match the style of the existing property or to create a contrast with a more modern look. However, before undertaking a rear extension project, it’s important to check local planning regulations and obtain necessary permits or approvals.


Before embarking on a rear extension project, it is essential to have a clear understanding of your budget. A rear extension can be a significant investment, and you’ll need a good idea of the costs involved to avoid any financial surprises. Some of the costs you’ll need to consider include materials, labour, design fees, permits, and unforeseen expenses. Consider your financial situation, available funds, and financing options. Once you have a budget in mind, it’s essential to stick to it to avoid any cost overruns.

Planning permission

You will often need planning permission before starting a rear extension project. Planning permission is a process that involves obtaining permission from your local planning authority before making any significant changes to your property. You must submit an application detailing the proposed extension and how it will impact the surrounding area. The planning authority will assess the application and decide whether to grant permission. It’s essential to check the local planning regulations and work with a professional to ensure you have all the necessary approvals before beginning the work.

Structural issues

Before starting a rear extension project, you’ll need to assess the condition of your property and ensure that it can support the weight of the extension. Your home’s foundation, walls, and roof will need to be assessed to ensure they can handle the extra load. Any issues, such as dampness or subsidence, must be addressed before the extension work begins. If you need clarification about the condition of your property, you may need to consult a structural engineer or a building inspector.


Various factors, including your budget, the purpose of the extension, and the style of your existing property, will influence the design of your rear extension. You’ll need to decide whether you want the extension to blend in with the existing structure or create a contrast with a more modern look. The design of your extension should also consider your lifestyle and how you plan to use the space. For example, consider factors such as natural light, ventilation, and storage if you’re planning a kitchen extension. Similarly, if you’re creating a new bedroom or living room, you’ll want to consider the layout, windows, and access to outdoor spaces.


Hiring the right contractors is crucial for the success of your rear extension project. Working with experienced professionals with a proven track record of delivering similar projects is essential. You should always get references and check the qualifications and insurance of contractors you’re considering. Before starting the work, you should have a detailed contract outlining the scope, timeline, and payment terms. This will help to avoid any misunderstandings or disputes during the project. You should also establish good communication with your contractors and closely monitor the project’s progress.

Types Of Rear Extensions

Various types of rear extensions can be considered when planning to extend the living space of a property. Some of the most common types of rear extensions include:

Single-story extension

This is the most popular type of rear extension, and it involves adding an extra room or living space at ground level. Single-story extensions can be designed to blend in with the existing property or create a contrast with a more modern look. They can be used to create larger kitchens, living rooms, or dining areas and are a great way to add value to a property.

Two-story extension

A two-story extension is more substantial and involves adding a two-level living space.

This extension type is more complex and requires careful planning to meet all the necessary building regulations. Two-story extensions can create extra bedrooms, bathrooms, or even an entire living space.

Wrap-around extension

A wrap-around extension adds extra living space to the ground and first-floor levels. This type of extension can create substantial extra living space and is an ideal way to add value to a property.


A conservatory is a type of rear extension primarily made of glass and designed to create a bright, light-filled space. They can be used as a sunroom, dining room, or home office. Conservatories are popular as they can be constructed relatively quickly and provide a great way to bring the outdoors indoors.


An orangery is an extension similar to a conservatory but has more brickwork and less glass. Orangeries provide a more substantial living space and can be used as a dining room, kitchen, or living room.

Rare Extension Ideas

Here’s some more detail on each of the rear extension ideas:

Roof terrace

A roof terrace can be a great way to maximise outdoor living space, especially if you need more space in your garden. This type of extension typically involves adding a flat roof to your rear extension, which can be transformed into an outdoor living space. A roof terrace can include outdoor furniture, plants, and even a built-in grill or kitchen.

Bi-folding doors

Bi-folding doors can create a seamless connection between indoor and outdoor living spaces. This type of extension involves adding large glass doors that can be folded back to create an open space. Bi-folding doors can create a sense of space and light, and they can be a great option if you want to create a more modern and open-plan living space.

Art studio

A rear extension can be designed to create an art studio, which is perfect for artists who need a separate space to work on their art. This type of extension can be designed to provide plenty of natural light and can be soundproofed to minimise noise. It can also be designed with storage and shelving to organise art supplies.


A library is an excellent addition to any home and can be created in a rear extension. This extension can provide a quiet and peaceful space for reading and relaxing. The library can be designed with built-in bookshelves, comfortable seating, and even a fireplace for a cosy atmosphere.

Utility room

A utility room can be designed to create a functional space for laundry and other household chores. This extension can also provide additional storage space for cleaning supplies, appliances, and other household items. A utility room can be designed with a sink, washing machine, dryer and even double as a mudroom.


A sunroom is a great way to enjoy the outdoors while staying indoors. This type of extension can provide plenty of natural light and can be designed to create a comfortable and relaxing space. A sunroom can be designed with large windows, comfortable seating, and even a built-in bench or window seat.

Home cinema

A rear extension can be designed to create a home cinema, which is perfect for those who love watching movies. This type of extension can be designed to create a dark and immersive environment and can be soundproofed to minimise noise. It can be designed with comfortable seating, a large screen, and a built-in sound system.


A rear extension can significantly add extra living space to your home and increase its value. However, it’s essential to carefully consider the design, planning, and building process before embarking on a rear extension project.

It’s essential to work with a professional to help you design and plan the perfect extension for your home and ensure that the extension meets all the necessary building regulations and doesn’t negatively impact neighbouring properties.

With careful planning and design, a rear extension can be a valuable and functional addition to your home that you can enjoy for many years.

Emmanuel Nwaebo

Emmanuel Nwaebo is the Managing Director at Powerpillar Ltd and has more than 25 years experience in building construction and renovations. He has a bachelor’s in Electronics and Electrical Engineering with certification in Construction Health and Safety Technician (CHST). With an experience in managing construction and renovation services for years, he is extremely passionate about property management and loves helping people find their dream property.

Get Your Quote Now


Powerpillar offers customised solutions tailored to meet the individual style preferences of its clients.

The Top 5 Benefits of Choosing a Custom Home Builder

Purchasing a home is usually one of the biggest investments for many people. There are two options when buying a new home for yourself and family. One is to buy a pre-built home, and the other is to purchase custom built house. Choose a custom home as it has many...

How a 3 Metre House Extension Creates Your Dream Cooking Space

Adding more living space to your home and increasing its value is a popular choice, and a home extension is a great way to accomplish this goal. Who wouldn't want more room to enjoy?  Are you tired of adjusting to a cramped kitchen, dreaming of a space where you can...

Top Bathroom Tile Trends in the UK for 2023

As we enter a new era of interior design, the bathroom serves as a blank canvas for expression and creativity. In the area of bathroom floor tiles, the United Kingdom experienced a stunning combination of classic beauty and nostalgic charm in 2023. This year's trends...

Integral Garage Conversion – An Ultimate Design and Cost Guide

Ever looked at your garage and thought, "Man, there should be a better use for this space?" Well, you are not alone. You have this integral garage, probably housing more dust than anything else. But hold on, there's a cool solution. You can go for an integral garage...

7 Brilliant Benefits of Glass House Extensions

Imagine sitting at a table, finding inspiration to write a new song, and amid the struggle, a bird flies by and gives you thousands of words. Imagine being a nature lover and wanting to spend time outdoors without going out. It might seem delusional at first, but let...

What size extension can i build without planning permission

Building extensions to your property can be an exciting prospect, offering additional living space, increased functionality, and potential value appreciation. However, the process of obtaining planning permission can be time-consuming and costly.  Luckily, in the UK,...

Under Garden Basement

Are you dreaming of expanding your living space without sacrificing your beautiful garden? Well, we have some exciting news for you! You can now build an under garden basement extension right under your garden! In this article, we'll walk you through the entire...

Basement Conversions in London

A basement conversion is a process of transforming the often-underutilised space beneath your property into a functional and habitable area.  This step-by-step guide explores the advantages of basement conversions, how to build a basement, all tailored to adhere to...