How Much Is It For A Loft Conversion?
A loft conversion is among the most popular home improvement projects in the UK for easing space pressure on the rest of the home. It’s a great solution for properties in urban areas or where a two-story extension doesn’t make financial sense. It is advisable to get comprehensive plans drawn up for your conversion, either from an architect or an architectural technician. This will lay out exactly what changes will happen and how the finished project will look, taking into account all of the relevant structural changes that need to be made, including all the necessary calculations. A price of around £1,000 plus VAT is fairly typical for this service.
Regardless of your planning status, your conversion will have to be inspected by the building regulations department of your local authority to ensure it is being constructed in accordance with the rules, making sure it complies with things like fire safety, access, floor strength and so on. Submitting the plans for inspection and having on-site inspections can cost between around £400 and £800.
The overall cost of your loft conversion will depend on a variety of factors. The two key factors are the style of loft conversion you choose, and the size of your property. As most lofts cannot be simply altered into habitable rooms due to building regulations, there will almost certainly be structural work that needs to be carried out to convert the loft. The main kinds of loft conversion are:
Adding a loft room: If you have space already in the loft (i.e the height between the bottom of the ridge timber and the top of the ceiling joist is 2.2m or greater), then converting it into a room simply involves adding a staircase, skylights, insulation, and often reinforcing the floor, along with final fitting and decoration. As the simplest method of converting a loft, this is the cheapest way to proceed, though it is only suitable for some homes. The cost is generally between £15,000 and £20,000, with prices tending to be higher in London and the southeast where tradespeople are more in demand.
Dormer loft conversions: The most common style of structural loft conversion, these are an extension to the existing roof, building out sections with vertical walls from the roof to add floor space and room for windows. These are suitable for most types of homes, including terraced house loft conversions. 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 £30,000 to £58,000 depending on the size of the conversion and other factors, with an average of around £45,000.
Hip to gable conversions: An option for detached and semi-detached homes where the roof has at least three slanting sides, a single hip to gable conversion fills out one of the sides by building a vertical end wall, giving you a larger amount of interior space. A double hip to gable conversion can be done on detached houses, building out on both sides. The added complexity of hip to gable conversions means they are typically more expensive, with a starting price of around £42,000, with an average of around £54,000.
Mansard roof conversions: These are the most dramatic style of conversion, involving changing the entire roof structure, adding a flat roof with sloping “walls” at 72-degree angles, and dormer windows added. It adds the most room but significantly changes the exterior appearance of the property. As a mansard conversion involves the most complex and complete overhaul, it is the most expensive option, beginning at £45,000, with an average cost of £58,000.
If you are unsure which type of loft extension is right for your property, you should post a project on Archilink and get advice from a professional architect.
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