Yes, it is often worth hiring an architect for a loft conversion. Architects can add value by maximising the space's use and aesthetics, ensuring compliance with legal standards, and potentially increasing your property's value.
In practical terms, you will need someone to provide architectural drawings for your loft conversion. You will need drawings for building regulations approval, and construction drawings for your builders to work from. But a good architect will do so much more than that.
For a loft conversion, this means the architect's fee will be a predetermined percentage of the total building cost. The percentage typically ranges from 10% to 15%, depending on the complexity and scope of the project.
For the vast majority of attic conversions it is not necessary to engage an architect or engineer. In fact we would see architectural drawings for only about 3% or 4% of our contracts. However, if your house is unusual in design or layout you may need to consult with a professional.
In my experience, if you are only doing cosmetic improvements (upgrading finishes, for example) it really isn't necessary to hire an architect. If you are altering the plan or adding on, an architect can help you avoid making planning mistakes and help to make all the parts work together.
As a basic rule of thumb for private residential projects, a residential architect typically charges between 10-15% of the construction cost for full architectural services. This can be reduced to 3.5% – 5.25% if you use your architect for the initial design stage only*.
This rule means, at least half of your attic space must be 7 feet high by 7 feet wide, with a total of 70 square feet. Keep in mind, codes vary from place to place, but for using the attic as an actual room, this rule typically applies.
Moreover, houses built during or after the 1960s may have trussed roofs, which are characterised by their 'W' shaped frames that support both the roof and the floor. These trusses are not designed with loft conversion in mind, as altering them is a complex process that requires replacement with sturdier supports.
Most architects will provide a free estimate to you. Typically during an estimate, the architect will meet you at your home, evaluate the overall complexity of the project and determine a rough estimate of how much the project will cost you.
Drawing up your own plans for a loft conversion is allowed, but it is rarely a good idea. Unless you are an experienced architectural designer then the amount of things that could go wrong just makes things too risky…
Percentage charges: in some cases, an architect might charge a percentage of the loft conversion cost, more normal in larger-scale projects or where they are providing a full project management service. Rates vary from around 5-20% of the total work.
The timeline to complete loft conversions depends on multiple variables, including project size, type of conversions, and challenges faced during conversions. However, on average, a project can be completed in 6–12 weeks. The entire process of loft conversion is divided into different stages.
Is a loft conversion a good investment? Yes, a loft conversion can increase your property's value by up to 20%, add functional living space, and improve energy efficiency, making it a smart long-term investment.
A lot needs to be considered structurally, and the interior needs to be carefully considered to avoid problems down the line. Choosing to convert a loft without an architect's help comes with several risks, including: Poor design – this can lead to your house price decreasing rather than increasing. Planning refusal.
On average, a basic loft conversion for 20m2 (215.3 square feet) can start from around £20,000 to £30,000, while more extensive and luxurious conversions can cost upwards of £50,000 or more. A well-executed loft conversion can significantly enhance a property's value, typically adding between 20% and 25%.
BUILDING CODES
Regulations vary from county to county, but most attic conversion building codes require: A minimum of 70 sq. ft. of floor space.
For most wiring, this is possible but may not always be possible as there will inevitably be light fixtures that are installed throughout the ceilings below. Electrical wiring should be installed to minimize the likelihood of damage, impact, or water ingress.
Using a professional design will help you to get the best use of your space, ensuring the light is right and that the improvement blends in with the rest of the property. Architects can help you to navigate the planning system and make sure your project complies with building regs.
If you want your project to ultimately be a success, stay on budget, and be delivered on time, then it is best to hire an architect as early on in your project as possible. By hiring an architect early in the process, there is a much higher potential for project cost savings.