bungalow loft conversion

How much does a bungalow loft conversion cost?

✔ Save £ on bungalow loft conversion cost
✔ Get a price for all aspects
✔ Reputable companies local to you

How much does a bungalow loft conversion cost?

A bungalow loft is often an unforgotten and unloved space. However with careful planning and clever design, even the smallest of conversions can pack an impressive punch. The average bungalow loft conversion cost is £40,000 but can be cheaper and usually has a positive effect on the overall house value, as well as increasing the standard of living. Creative conversions can transform dusty storage into an additional bedroom, bathroom or peaceful study area. 

Want a more accurate quote? Ask us about adding a second floor to your bungalow.  Want a quick quote from a local installer? Fill out the form below. Time to complete: 30 seconds!

Why are homeowners adding a second floor to their bungalow?

With living space and bedrooms all located on ground level, bungalows were once perceived as properties reserved for people of a certain age. In recent years we have seen bungalow properties being snapped up simply to be demolished and replaced with more modern properties. Yet, could there be a halfway house, (pardon the pun)?

As the UK continues to battle housing shortages and increasing property prices and stamp duty, many people are having to adapt current spaces to accommodate their growing families, often including young adults who are unable to move out of the family home.

So when it comes to loft conversions, is the only way up?

Taking advantage of unused loft space presents an opportunity to completely change the layout of a property, opening up the area to lend a more modern vibe.

Traditionally the space might be used to create an extra bedroom, but innovative homeowners consider adding office space, a gym or maybe even a home cinema. A loft which is ripe for renovation, can mean the opportunity to create a more open plan living area with well zoned family living.

And finally, why not consider transforming your bungalow loft into an en-suite boutique bedroom. With more and more people looking for real experiences when they travel, your “holiday rental” bungalow conversion could really equal cash in the attic.

bungalow loft conversion
image from: https://www.homebuilding.co.uk

What type of loft conversions are suitable for a bungalow?

The first step to determining the cost of a bungalow loft conversion is to establish which type of loft conversion you require. As with conventional homes, there are a number of options available when it comes to converting your bungalow loft. Deciding on how to proceed depends on the individual space and of course the budget you are willing to splurge. 

  • Room In Loft: The cheapest way to utilise the space is simply to create a room in the loft, if space allows. This typically involves adding a staircase, skylights, insulation and reinforcing the floor. And of course you will also need to invest in eye-catching decor to make the space really “pop”! Estimated costs range between £15,000 to £20,000. Read more about Velux loft conversion costs here. 
  • Dormer Loft Conversion: Most people will be familiar with this type of loft conversion, perhaps without even knowing it. Dormer loft conversions are not just used in bungalows but are often utilised to extend spaces within terraced houses. The concept involves building out vertical walls from a pitched roof in order to create windows and additional floor space. Depending on the locality and size of your property the estimated budget averages at around £31,000. You can read more about dormer loft conversion costs here. 
  • Hip To Gable Loft Conversion: This type of conversion is only available for homes which are either detached or semi detached and the roof needs to be pitched on three sides. By erecting a vertical wall on one side of the property there is space to extend the interior area. Due to the work involved the average cost of this type of conversion is approximately £ 54,000. Read more about hip to gable loft conversion costs here. 
  • Mansard Roof Conversions: A mansard roof conversion involves the most commitment, both in terms of cash and design. A mansard conversion basically creates a whole new room on the roof, dramatically changing the appearance of the property. The average price of this type of conversion is estimated at £58,000 but will offer a real opportunity to redesign your property. Read more about mansard loft conversion prices here.

What factors will affect the cost of a bungalow loft conversion?

Deciding to opt for a bungalow loft conversion requires significant investment. However, as we mentioned earlier, this will have a positive effect on the price of your property, potentially giving you a return of up to 20%. Prices will fluctuate depending on where you are located in the country and the standard of finish you require for the project.

A reputable and professional company will quote you a price which is all inclusive in terms of labour and materials, although this will often be itemised on a proposal or invoice. Whilst there can be the temptation to look at sourcing materials yourself, using multiple contractors in a bid to drive cost of a bungalow conversion down, this frequently has the opposite effect, extending the project timeline and increasing costs.

Costs for your conversion will take into account labour and the equipment needed, for example the erection of scaffolding or a temporary roof cover. Other costs include insulation, electrics, windows and skirting boards.

Depending on how you are intending to use the space will depend on the final cost of your conversion. For example creating a home office will cost less than the additional costs associated with fitting an en-suite bathroom.

If you are looking for increased transparency in terms of the actual costs of materials, you may request that your chosen builder provides you with a contract that specifically names suppliers to ensure costs are accurate and fair.

In our short guide to the type of loft conversion which might work for your bungalow, we have outlined some guide prices. Remember there are other factors and considerations which will influence how far your budget will go.

Check below for the additional factors outside of materials and labour that will affect the cost of adding a second floor to your bungalow:

  • Architect Fees: Whilst you may have a great vision for your new space, complete with cobalt blue feature wall and rose hued downlighting, you will need to employ the services of an architect who can draw up plans for any structural changes which might be necessary. And as your property is a bungalow, a professional will also be able to assist you with drawing up plans for a staircase. Architects fees average at about £1,000 plus VAT.
  • Planning Permission: In most cases the conversion of a loft bungalow will not require planning permission as it is classed as permitted development. Problems can arise when a property is in a conservation area or maybe a listed building. Your builder should be able to advise on this and if planning permission is needed, the current application cost is £172.
  • Building Regulation Costs: All types of conversion will be required to adhere to building regulations which includes factors such as fire safety and access. You will be individually responsible for submitting your plans and on site inspections may be required. Costs range from between £400-£800.
  • Party Wall Agreement: If your property is connected to another property and shares a wall, you may need a Party Wall Agreement. This agreement will outline consent from your neighbour for the work to take place and also confirm that you are liable for any damage whilst works are underway. The agreement can be quite costly depending upon complexity and can cost thousands of pounds.

Get an accurate bungalow loft conversion cost here

See how we work below.

Webp.net-resizeimage (1)

1. Tell us some details of exising bungalow

Tell us the details of your existing bungalow and how you would like the loft converted.

icons8-search-property-96 (1)

2. Tell us your UK address

We have a national network of roofers around the United Kingdom. Whether you are in Scotland or London, we can help.


3. Recieve a no obligation quote

You'll receive up to 4 no-obligation quotes and have a better idea of the bungalow loft conversion costs.

What are the potential problems when adding a second floor to a bungalow?

As we touched on earlier, bungalows are much sought after properties. As bungalows tend to be set on large plots, developers frequently snap up the properties and replace them with more modern style homes. However, adding a second floor can also maximise the potential in a property.

The first thing to note is that not all bungalows are suitable to add a second floor. So you need to check if your desired project is viable. This will take into consideration structural stability, property footprint, depth and shape of foundation and assessing any load-bearing walls.

Do you have floor plans of your property to hand? As a homeowner, you should have original construction drawings of your home. These drawings are vital for architects as they will be able to access much of the information they require to address the above points.

If you are unable to locate the original drawings of your property then you may be able to access the information via local building records. Unfortunately, if you are struggling to find out these details then you will need to instruct a structural engineer who will then carry out an investigation on your behalf. Take note that this will add further costs to your project.

Be careful - animal problems may drive you“batty”……

And having animals in your loft space is definitely one of them.

That’s right, as bats are a protected species they can have the potential to play havoc with the timeline of your project.

Under the current law it is an offence to deliberately kill bats, destroy their habitat or limit access to their roosts. So if your loft is found to be home to the animals, you may run into a few problems.

As part of any planning decisions, your local council will assess the potential of your property being home to bats. This decision takes into account a wide range of factors including proximity to woodlands or being immediately adjacent to water. If your house is deemed to be a property which is likely to be a home to bats, then a survey will need to be carried out! This will all add to the cost of adding a second floor to a bungalow.

What happens if bats are discovered?

If the survey confirms that bats are present in your loft space, this does not mean that your project will not be given the go ahead. However your local council will require you to stick to certain restrictions and this may have the effect of delaying your project or indeed adding costs.

There are two types of Bat Survey which may need to be carried out. A preliminary bat survey costing £300 or a full bat survey costing upwards of £1000.

Make sure you have a comprehensive contract!

A loft conversion project is common and can frequently be completed with very little problems, yet they can arise. To ensure minimum disruption and for the clarity of what is expected from both parties, it is advisable to set up a project contract so both parties understand their obligations and expectations.

Get quotes from reputable suppliers here

Save 1,000's on your bungalow conversion loft project. Get no-obligation quotes today.

Frequently Asked Questions

How long does a bungalow loft conversion take?

Once your project has been granted permission and all necessary paperwork and plans have been filed, on average your bungalow loft conversion will take between 6-8 weeks.

Can I have some more information on planning permission?

Most bungalow loft conversions or dormer roof extensions will not need planning permission and will fall under permitted development. However for a homeowner who really wants to add maximum space into the family home and create a grand design all of their own, building an entire new floor across the property is often desirable. This is where a homeowner is likely to need to seek planning permission.

Planning permission can also be an issue if you live in a conservation area or if your home is in a street with very similar properties. In these cases, even if planning is granted you may need to adhere to restrictions.

What are the steps involved when extending a bungalow?

Project Timeline: Planning your bungalow loft conversion can seem a little daunting. There seems to be so much to consider such as structural ability, planning permission and whether the space may or may not be home to bats.

The brief checklist below is designed to assist you in understanding the various stages of a conversion project.

Is planning permission required? Typically a loft conversion will come under permitted development but before you commence your project you should always check with the local planning authority. 

Assessment of Roof Space: Gather information on roof height, space and identify any potential problems prior to commencing any work. 

Instruction of Architect: Once you have gathered sufficient information it is best to contact a professional architect who will be able to assist with drawing up plans, create potential costs and reaffirm that the bungalow will be able to support the additional load. 

Clearing The Loft: Moving storage boxes or other items so work can commence. This can largely be done by the homeowners. 

Fitting of New Floor Joists: Most projects will require new floor joists. The removal of the original joists will also remove any existing wiring and so rewiring the area will be necessary. 

Insulation: Once the joists have been replaced, insulation can be placed in between the spaces before covering with floorboards.

Rafters Reinforced: In accordance with any structural requirements rafters will be reinforced at this stage. These will need to be inspected to ensure that any specifications are met. Following this any Dormers can now be installed. 

Skylight and Staircases: As lofts can be typically dark spaces, added light can be brought in through additional skylights. Any planned skylights can be fitted at this stage. The timing of the staircase fitting may vary due to individual layouts and circumstances. Fitting staircases mid project ensures easier access to the loft when applying finishing touches. 

Roof Completed, Insulated and Additional Windows Fitted: Roof tiles are fitted, insulation of rafters and any further windows installed. 

Interior Works: Depending on the design and how the new space is intended to be utilised, your project may now be ready to have partition walls installed. Electrical upgrades and any necessary plumbing can now be installed. The project will then move onto the aesthetics including colour schemes and soft furnishings.

How can I cover the costs of a bungalow conversion?

Are you eagerly visualising your new converted loft space? A peaceful haven to hide away or a personalised place to work. The possibilities of course could be endless but unfortunately, finances usually need to come into consideration.

Before working out how to finance your project, you need to ensure that you have a clear figure of the conversion costs. Make sure to gain quotes from different tradespeople as prices can widely differ. And once you have an estimated price, remember it is just estimated and add in a further 15% as a contingency budget for those unexpected pesky problems.

Saving and Credit

Have you already been saving for this project? If the answer is yes, this is a great position to find yourself in. If the estimated price of the project is running a little over your budget, you could also fund the remainder with a credit card, ensuring you shop around for a card with low interest repayments.

Personal Loan

A personal loan is an ideal solution for a loft conversion costing up to £35,000. Repayments are usually fixed over a set time period which makes it easier for you to budget. Take to check APR rates and ask about any penalties related to early repayment.

Mortgage Lender

Your current mortgage lender may be able to top up your current loan enabling you to carry out the desired work. This is called a further advance and should be applied at your current mortgage rate, although this is not necessarily guaranteed.

To ensure you get the best deal for your planned loft conversion it is advisable to check all of your options, and if you only require a small buffer, family or friends may also be able to assist. We hope that this article has helped you to learn about bungalow loft conversion costs.