Bungalows, with their single-storey layout, often present an untapped opportunity for homeowners that want to increase the value of their property and expand their living space. A great way to maximise space in a bungalow is with a loft conversion. But how much will a bungalow loft conversion cost?

Read our guide to find out all the costs involved, plus information on planning permission and timelines.

How much does a bungalow loft conversion cost?

The cost of a bungalow loft conversion in the UK can vary depending on factors such as the size of the loft, the complexity of the conversion and the materials used. On average, a basic 20m² bungalow loft conversion costs £30,000, but you could spend up to £55,000 for a high-end finish.

Basic roof lift	£30,000
Dormer	£40,000
Hip to gable	£45,000
Mansard	£55,000

Factors affecting the cost of a bungalow loft conversion

Size of your loft

The size of your loft will play a big part in how much it costs to convert. Larger loft spaces will require more materials and take longer to convert, so will naturally cost more.

Type of bungalow loft conversion

The type of bungalow loft conversion you choose to have will affect the cost, as they all require different kinds of building work. A bungalow roof lift usually requires the least amount of structural work, whereas dormer and mansard loft conversions involve a lot of changes to the roof which can increase the cost.

Existing roof structure

The existing roof structure of the bungalow and ease of access to the loft space are crucial factors that influence the cost of the conversion. Bungalows with simple roof structures and accessible loft spaces typically require less extensive structural work and labour, resulting in lower costs.

However, properties with complex roof shapes or limited access may require additional structural alterations and scaffolding, which will drive the final cost up.

Quality of materials

The materials and finishes you choose for your bungalow loft conversion can significantly affect the total cost of the project. Opting for high-quality materials and premium finishes, such as hardwood flooring, bespoke joinery and designer fixtures, will obviously cost more, but will give your new conversion a great look.

It’s worth considering where to spend your money on more premium materials. While it may make sense to buy budget materials for some parts of the conversion, other parts may be worth splashing out on to get a better finish that lasts longer and improves the value of your property.

Planning permission

Many bungalow loft conversions are covered under permitted development rights, meaning you don’t need to apply for planning permission. However, if you do need to apply for planning permission, for example if you live in a conservation area, you’ll need to factor in this added cost, which is usually around £322.

If you’re unsure, contact your local authority building control before going ahead with any work, as your council can force you to tear down a conversion or fine you.

Any additional features

Any additional features you want in your new space will impact the final cost. It’s common to want to make your bungalow loft conversion a new main bedroom with an en-suite, but the extra plumbing work required will obviously add to your quote.

Make sure you consider your budget when you’re planning your conversion and decide which features really matter to you. For example, is LED downlighting important to you or could you have normal pendant lights?

Where you live

Where you live is one of the biggest factors affecting the cost of your bungalow loft conversion. If you live in the south east of England, you’ll pay more for labour and materials than you would if you live in other areas of the UK. Prices tend to be cheapest in the north of England, Scotland and Wales.

The best way to ensure you get a great price for your bungalow loft conversion is to get a range of quotes. Post your job on HaMuch now and we’ll send it to extension builders in your area, but in the meantime take a look at our table of prices based on location to get an idea of costs.

How long does a loft conversion take on a bungalow?

The duration of a loft conversion project on a bungalow can vary depending on factors such as the size of the loft, the complexity of the conversion, and the availability of materials and labour. Generally, a bungalow loft conversion can take anywhere from 6 to 8 weeks to complete, but larger or more complex projects may take longer.

Here’s a standard timeline of what to expect during a bungalow loft conversion that all runs to plan:

Week 1: Scaffolding erected if required, materials delivered, access made into roof

Week 2: Any structural work required, dormer windows (if applicable), roof stripped back

Week 3: External works including roofing, soffits, fascias and guttering

Week 4: Plumbing and electrics first fix, flooring installed, roof replaced

Week 5: Internal stud walls fitted, insulation added, plasterboard fitted, walls skimmed

Week 6: Staircase fitted, final fix electrics, doors and skirting boards installed

Week 7: Painting and decorating, tiling if required, snag checks

Week 8: Final inspections, sign off by building control

Remember that unexpected problems can occur with any project, so this timeline is just a guide. Ask your extension builder for a more detailed timeline that’s bespoke to your property.

Can any bungalow have a loft conversion?

Yes, in theory, most bungalows can have a loft conversion. Even bungalows with a shallower pitched roof can have one, but more structural work may be required to allow for enough headroom.

If there are planning restrictions in your area, it may be more difficult to have a bungalow loft conversion. The best thing to do is to speak to a professional who has done bungalow loft conversions in your area or an architect, as they will be able to tell you what your options are.

Where do the stairs go in a bungalow loft conversion?

The exact location of your stairs in a bungalow loft conversion will be determined by factors such as the available space, building regulations and design, but the best place to position your stairs is usually in the highest part of the loft in line with the roof edge.

Of course, you’ll need to consider that your ground floor space will be impacted by the installation of your staircase. Work with an architect or your builder to find the best place for the stairs on both floors.

Do I need fire doors in a bungalow loft conversion?

While building regulations state that fire doors are required in house loft conversions, you don’t need fire doors in a bungalow loft conversion. This is because it is seen as lower risk due to there only being two storeys in a bungalow loft conversion rather than three in a house.

However, building regulations state that you must have an escape window and a mains-powered grade D fire alarm system, but this is good practice for any home to ensure that occupants have an escape route wherever they are in the house and are made aware of a fire hazard as soon as possible.

If you’re ready to get quotes for your bungalow loft conversion, post your job on HaMuch and we’ll send it to our database of extension builders in your area who will be happy to help.

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