Architecture
30/Aug/2024
10 minutes

Design guide: Adding An Extension to a Bungalow

In this design guide, we wanted to cover all that you need to know about adding an extension to a bungalow. We have worked with many clients in the past to realise their architectural design goals, many of which have involved single-storey extensions.

Many aspects of extensions can be overlooked, most notably the associated technical considerations. With this said, planning the process of adding an extension to a bungalow can maximise your living space and allow for a much more comfortable lifestyle.

If you would like to discuss your bungalow extension project idea with our design team, contact us for a free consultation.

christopher david design design guide adding an extension to a bungalow

The Potential of a Bungalow Extension

Before we discuss the technical elements of bungalow extensions, an overview of bungalow extensions is in order. For many bungalow owners, an extension can open up possibilities, quite literally.

Below, we have created a list of some of how you can benefit from a bungalow extension:

Increase floor space – as mentioned, extra floor space can easily be achieved with a bungalow extension.

Redesign your living space – for those who wish to alter the layout of your property, an extension is a great idea.

Add an en-suite – whether your family has grown and you need a second bathroom or you simply enjoy the idea of an en-suite, an extension is going to allow for this.

Add architectural and interior character – many homeowners use extensions to not only increase their living space but also to add character. Skylights and many other design features can be integrated into an extension.

Increase your property’s value – this point may seem obvious, but if you are looking to sell your property in the future, an extension can greatly increase your property value.

Add an extra floor – extensions can be built in all directions, you can use an extension on a bungalow to extend upwards.

Planning Permission for Bungalow Extensions

The most crucial part of changing any architectural structure is to seek the relevant planning permission first. Though many home renovation projects will fall under permitted development rights some may still require approval from your local planning authority.

We have outlined the relevant steps below, however, if you have any questions or would like further advice on getting planning permission, contact our team.

Permitted Development Rights

In certain cases, your bungalow extension may be considered as a ‘permitted development’. This means that you can proceed without formal planning permission. With this said, it is still essential to adhere to specific criteria. In the case of extensions, this generally involves size limitations, location on the property and not drastically compromising the dwelling itself.

Consulting with a professional Architectural Designer or Planning Consultant can help you to determine if your design project falls within these guidelines.

Planning Permission Requirements

For any extensions that do not qualify for permitted development rights, you will need to apply for planning permission. This involves submitting detailed plans of your proposed extension to the local planning authority, outlining the design, materials, and how it fits within the context of the surrounding area.

Consultation with Your Local Planning Authority

Engage in early discussions with the local authority or a Planning Officer. This informal consultation can provide valuable insights into potential issues, allowing you to address concerns before the formal application process.

Ultimately, it also serves as an opportunity to seek guidance on design, scale, and any specific local planning policies that may impact your project.

Design and Aesthetics

Planning permission is not solely about size and placement. Authorities often consider the impact of the proposed extension and its impact on the neighbourhood. Ensuring that your design aligns with the existing architecture and character of the area can significantly improve your chances of obtaining approval.

Neighbor Consultation

In many cases, local authorities require you to inform and consult with neighbouring properties about your proposed extension.

This is especially true for larger projects that may impact the surrounding properties in terms of light, privacy, or aesthetics. Addressing any concerns raised by neighbours can help smooth the planning process and avoid potential future stress.

Conservation Areas and Listed Buildings

If your bungalow is located in a conservation area or is a listed building, additional restrictions and considerations may apply.

These areas are subject to stricter planning controls to preserve their historic or architectural significance. Seek specialist advice to navigate the specific requirements for such locations.

Environmental Impact

Consider the potential environmental impact of your extension, especially if it involves significant alterations to the landscape. Sustainable design principles and eco-friendly features may positively influence the planning authority’s decision.

Types of Bungalow Extensions

There are many types of bungalow extensions and depending on the factors that come into play. In this section of our guide, we will provide an overview of extension types suitable for bungalows and how you can make the most of your original bungalow design.

L- or U-shaped Layout Extensions

Extending your bungalow in an L- or U-shaped layout is a strategic approach to enhancing both interior and exterior spaces. This extension type involves elongating the living space along multiple sides of the property, forming an L or U shape. It’s a versatile option that opens up possibilities for creative design and functional zoning.

L- or U-shaped extensions allow for a significant increase in floor area, providing more room for various activities and functions. The design can also facilitate a seamless connection between indoor and outdoor spaces, making it ideal for those who appreciate a harmonious blend with nature.

The layout versatility enables creative interior design, offering options for distinct living zones, such as dining, lounging, or workspace areas.

Rear Extensions

Rear extensions are a common choice for bungalow owners seeking to expand their living space while maintaining a straightforward construction process.

This type involves extending the bungalow towards the rear of the property, opening up opportunities for larger kitchen spaces, additional bedrooms, or spacious family rooms. If you are looking to create a light and airy extension, a rear extension is the perfect option.

Many rear bungalow extension designs incorporate elements of outdoor/indoor living with skylights to allow plenty of daylight to flood into the space. There are other benefits to these types of extensions such as enhanced privacy and a greater resale value.

Side Extensions

Side extensions are a practical solution for bungalows with available space along one of the property’s flanks. This type of extension allows for the expansion of specific rooms or the addition of entirely new spaces which can improve the versatility of your floor plan and can greatly improve a dated bungalow.

If you are seeking to create a bungalow extension that does not impact the outside space, an extension that is extending outwards to the side will help to maintain the existing indoor and outdoor design.

Thoughtfully designed side extensions can contribute to the aesthetic appeal of the bungalow, adding architectural interest and character. For example, you can remove one of the internal walls to create a more modern aesthetic in the existing building structure or use glass doors to achieve a wonderful conservatory space.

Dormer Extensions

Dormer extensions, also known as loft extensions, are built to transform the attic into a functional living space. This upward extension is an excellent option for those looking to optimise space without expanding the bungalow’s footprint.

A dormer extension is a popular choice among bungalow owners looking to add rooms on the roof. They can provide extra living space and enhance the overall architectural appeal of a bungalow. A dormer extension involves extending the roof vertically, typically creating additional headroom and usable floor space in the process.

There are various types of dormer bungalow extension designs to choose from, so we recommend that you think about your options carefully and factor in lifestyle preference:

Gable-End Dormers – feature a gable roof that runs perpendicular to the existing roof slope. Gable-end dormers are an excellent choice for bungalows that are traditional and where the owner wants to maintain this aesthetic.

Shed Dormers – have a single-sloped roof that slopes downward in one direction. These dormer extensions are a practical option for bungalows providing plenty of natural light and headroom.

Hip Roof Dormers – hip roof dormers have a roof that slopes down on all sides to blend in with the existing roof. This type of dormer design is the most architecturally integrated and often a popular choice.

Flat Roof Dormers – if you prefer a contemporary aesthetic, flat roof dormers are great for achieving just this. These dormers provide a sleek and minimalist appearance.

Bungalow Extension Design Ideas

If you have a design in mind for your bungalow renovation and would like to discuss your design ideas with an experienced Architectural team, we offer free consultations. Contact us today to book a consultation and make your vision a reality.

In this section of our bungalow extension design guide, we wanted to provide some inspiration for bungalow extension ideas. Many bungalow owners choose to extend their space to create more functional interior space. From creating a dormer loft conversion for home office needs to revamping a tired bungalow with a modern ground-level rear extension for dining, there are many options.

One of our favourite extension projects involved a bungalow rear extension and loft conversion which transformed a Japanese-inspired home in Laleham Village. The bungalow renovation focused on bringing about tranquillity and sophistication through contemporary living. Utilising natural light, minimalist interior decor and large glazed doors for an indoor/outdoor effect, this project stands as a shining example of what can be achieved with an extension.

Below, we have included some design ideas and the potential effects or benefits they can create:

Open-Plan Living Space

Removal of interior walls with a side extension to create an open-plan layout, merging the living, dining, and kitchen areas. This can make the space feel larger, improve natural light flow, and promote a more social and interactive environment whilst creating a sleek, modern aesthetic.

Glass Extensions

Integrate floor-to-ceiling glass walls or a glass conservatory to connect indoor and outdoor spaces. This type of extension design can enhance natural light, provide panoramic views of the garden, and give the illusion of a larger space.

Wrap-Around Verandas

Extend the bungalow with a covered veranda or wrap-around porch to create additional outdoor living space, provide shade and shelter, and connect the interior and exterior.

Loft Conversion

Convert the attic space into a functional living area, such as an additional bedroom or home office to maximise the use of available space, add value to the property, and provide flexibility in room usage.

Single-Storey Extensions FAQs
What are the benefits of adding an extension to my bungalow?

Adding an extension to your bungalow can provide numerous benefits, including increased living space, improved functionality, enhanced property value, and the opportunity to personalise your home further.

How do I determine if my bungalow is suitable for an extension?

Assessing the feasibility of a bungalow extension involves a range of factors. You will need to consider foundation conditions and the existing structure’s ability to support additional construction. Consulting with a professional Architectural Designer or Structural Engineer is recommended.

Do I need planning permission for a bungalow extension?

Larger or more complex projects may require planning permission. It’s advisable to check with your local planning authority or consult a professional Architectural Designer.

How long does it typically take to complete a bungalow extension project?

The duration of a bungalow extension project depends on the size and complexity of the extension, weather conditions, and any unforeseen challenges. On average, a straightforward extension might take a 6-8 months from planning to completion.

Can I live in my bungalow during the extension work?

In many cases, residents can continue to live in their bungalows during the extension project, especially if the work is focused on specific areas. However, it’s essential to discuss this with your Contractor and plan for any necessary accommodations to minimise disruptions.

How much does a bungalow extension cost?

The cost of a bungalow extension varies based on factors such as size, materials, design complexity, and location. It’s recommended to obtain quotes from reputable contractors and factor in potential additional costs for permits and unforeseen issues.

Get in Touch...
We can help bring your project to life. Please leave us a message with project details, and we'll contact you to schedule a free consultation.
Schedule A Call or message us below:

More From The Journal

10 Steps to Success: Hiring an Architectural or Interior Designer
The Planning Application Process: Explained
Planning approval and building approval: What’s the difference?