Loft conversion how much does it cost

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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 go in, before it is plastered and carpentry such as skirting boards are fitted. Electrical sockets and elements like the WC and sink, if needed, are then added, before the final conversion is ready for final inspection, and decoration can then take place.

This is where the bulk of the costs are spent. The ultimate finish of 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 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. Other factors include things like moving water tanks, if needed, and the number of windows being fitted.

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 pres homes - or with wooden trusses, which are easier to construct but can take less weight. MyBuilder Plus is comprehensive cover for your job that takes away the stress and financial risk if the unexpected happens.

Pay attention to fire safety - this will be a key part of building regulation inspections of your plans and the building work. You may need to install special fire safety doors and mains-powered fire alarms, or make changes to your window plans to allow ladder access. The person who creates your plans should help address this, but be prepared that you may have to alter your original vision to make your conversion comply with the rules. The actual building portion of a loft conversion will typically last between six to eight weeks, depending on the complexity and scale of the project.

However, 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.

You will typically be able to stay in your home throughout the duration of the work though, with only minor disruption. The best way to ensure your loft conversion is not needlessly expensive and runs to budget is to hire reliable and experienced tradespeople who are adept at dealing with any complications and managing successful projects.

At MyBuilder, we usually advocate hiring particular specialists for each role, however, with loft conversions, there are a number of ways of hiring the necessary tradespeople.

This could involve hiring an architect to plan and then oversee the entire project, hiring a team of builders and other necessary trades, or hiring 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, however, to help ensure everything runs smoothly and the timings all work, this can introduce more risk, as one part running late can impact later work.

Adjusting your plans to try and ensure the plumbing needed in the conversion is over plumbing already in your home can also help keep the price down as it eliminates the need for more complex plumbing work.

Home Pricing guides Loft conversion costs. We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies. You can understand more and change your cookies preferences here. From hip-to-gable to dormer or mansard, there are lots of different options when it comes to loft conversions — and lots of escalating costs to go with them.

Raising the height of your roof, adding skylights and windows, and other structural changes will considerably increase the cost of your conversion. When we surveyed Which? Visit our step-by-step loft conversions guide to find out more about the different options available. Not all loft conversions need planning permission.