How much does a bungalow loft conversion cost?
The bungalow loft conversion costs in this article are correct as of 2020
Bungalows are prime candidates for loft conversions, taking underused loft or attic space and adding the capacity for extra bedrooms, living space, or a bathroom. Adding this space upstairs then frees up room downstairs to be more flexible with the layout of your home, so it’s no surprise how popular bungalow loft conversions are. Before you get started though, you’ll want to get a good idea of how much a bungalow loft conversion costs, so we’ve spoken to the experienced loft conversion specialists at MyBuilder to find out everything you need to know.
Bungalow loft conversion cost calculator
How much a bungalow loft conversion costs depends on the scale of the job, and also the style of conversion you are looking to add. Generally, the options for converting the loft in a bungalow are the same as in a two-storey home - adding a loft room, a dormer loft conversion, a hip to gable loft conversion or a mansard roof conversion.
Room in loft conversion costs
As the simplest method of converting a loft, this is the cheapest way to proceed, though it is only suitable for some homes with relevant roof space. The cost is generally between £15,000 and £20,000, with prices tending to be higher in London and the south east where tradespeople are more in demand.
Dormer loft conversion costs
As dormer conversions are relatively straightforward to add to a home, they are a cheaper type of conversion, with the cost typically coming in at around £31,000 to £58,000 depending on the size of the conversion and other factors, with an average of around £45,000.
Hip to gable loft conversion costs
The added complexity of hip to gable conversions means they are typically more expensive, with a starting price of around £42,000, going up to around £65,000, with an average of around £54,000.
Dormer loft conversion costs
As a mansard conversion involves the most complex and complete overhaul, it is the most expensive option, beginning at £45,000, and going up to around £70,000, with an average cost of £58,000.
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Stages of a bungalow loft conversion
There are several stages to a bungalow loft conversion, which are explained below, with some of the individual prices broken out where appropriate.
Bungalow loft conversion plans cost
Before you can go ahead with your bungalow loft conversion, you will need to get comprehensive plans drawn up, either by an architect, or by an architectural technician, or surveyor, laying out the design for the project. Bungalows, especially those built in the mid-twentieth century, often have steep roof pitches that give a lot of scope for loft conversions, but can also lack the necessary load bearing walls, as the building was not initially designed to have the weight of an extra floor. Your plans will take all of this into account, and will cost in the region of £1,000 plus VAT.
Planning permission costs
Most bungalow loft conversions will not require planning permission as they are considered permitted developments. However, depending on the size of the conversion, and other factors such as its impact on the street scene and whether or not your home is in a conservation area, planning permission may be required. Applying for planning permission currently costs £172 in England.
Building regulation costs
Building regulations are necessary for many home projects, and it is no different with bungalow loft conversions. However, they vary slightly from typical house loft conversions - because the new space will still only be at a first-floor level, the regulations are less strict, especially when it comes to elements like fire safety. Submitting plans and getting on site inspections will cost around £400 to £800. If your bungalow is semi-detached, may also need a Party Wall Agreement if your work will impact the adjoining properties. This requires your neighbours to agree to the work taking place. You are liable for costs such as their surveyor and any damage to their home which may occur as part of the works - it can cost several thousand pounds depending on how complex the agreement is.
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Bungalow loft conversion building costs
The majority of the costs will go towards the actual building work. Initial building work will typically be carried out externally with the use of scaffolding and in some cases a roof cover to allow work to continue effectively even with bad weather. Access will be created into the loft from the interior and the floor will be strengthened. The roof will be changed, interior walls will be then be fitted along with insulation, and features such as the staircase will be installed, followed by windows. Electrics and plumbing will be installed, before it is plastered and carpentry such as skirting boards are fitted. Finishing elements like electrical sockets and a bathroom suite are then added, before the final conversion is ready for final inspection, and decoration can be carried out.
Other bungalow loft conversion costs
The standard of fixtures and fittings in the loft will have a large impact on the cost of the project - for example, if you are simply planning to use the space as a large bedroom, it will be cheaper than if you are putting a bathroom in the space, where you will need to purchase the suite, which can cost several thousand pounds. Moving the property’s water tanks if needed, and altering the rest of the home’s plumbing system, will also add to the overall price. A slate roof will usually cost more to alter than one with concrete roof tiles. Another factor is whether the roof was built with a frame - often found in pre-1960s homes - or with wooden trusses, which are easier to construct but can take less weight. Replacing or reinforcing the trusses can take more work and thus increase the costs.
With a bungalow loft conversion, one of the key things to consider is where the new staircase will begin downstairs - the place where it seems most sensible to install it, such as the hallway, may not be possible due to the structure of the building, while placing it in another room will take up space. The person drawing up your plans should be able to help you find a solution which works.
How long does a bungalow loft conversion take?
Six to eight weeks is the average length of time for a bungalow loft conversion, but it is worth bearing in mind that the the planning stage can also take a considerable amount of time, especially if planning permission is required and a Party Wall Agreement needs to be negotiated. When building work is being carried out, you will typically be able to stay in your home throughout without too much disruption.
How to keep your bungalow loft conversion costs down
Hiring trustworthy tradespeople is the best way to ensure your job comes it at a fair price with no unnecessary additions. At MyBuilder, we typically advocate hiring particular specialists for each role, however, with bungalow loft conversions, there are a number of ways of hiring the necessary tradespeople. You could hire an architect to plan and let them oversee the entire project, hiring a team of builders and other necessary trades, or hire a specialist loft conversion firm who will have a team with all the needed skills. You can also project manage the work yourself, hiring different tradespeople for different elements of the work, but this puts the pressure on you to ensure everyone is running to time to make sure there are no hold-ups in the work.