Mark Stevenson
Mark Stevenson is a construction professional with almost 35 years’ experience across housebuilding, timber systems manufacturing and bespoke residential development. He is the owner of Elsworth Projects Ltd, a consultancy specialising in the project management of bespoke self-build homes.
Previously Managing Director of Potton and former Chair of NaCSBA and the Structural Timber Association, Mark is widely recognised for his specialist knowledge of timber construction, land finding and appraisal, and the construction of self-build projects.
Alongside his professional career, Mark is a skilled joiner, hands-on renovator and serial self-builder. He regularly shares his knowledge at Homebuilding & Renovating Shows and coaches self-builders.
Latest articles by Mark Stevenson

By Mark Stevenson last updated
Building Regulations Part O sets out the rules that protect occupants from overheating within new homes – something that's more important than ever

By Mark Stevenson Published
Water consumption, efficiency and hot water safety form the basis of Part G of the Building Regs. Self-build expert, Mark Stevenson, explains how to comply

By Mark Stevenson Published
Estimating a finish date for a renovation isn’t straightforward. Build expert Mark Stevenson breaks down typical timelines as well as the hidden delays that can stretch them

By Mark Stevenson Published
A well-insulated property is the goal for most homeowners, so with technology advancing, build expert Mark Stevenson explores current insulation innovations

By Mark Stevenson Published
Our build expert explains how it's best to add a layer of intermediate insulation in a two-storey house for soundproofing, fire safety and warmth

By Michael Holmes last updated
Strong foundations are integral to a stable build, but with soil, architectural design and cost all playing a role, we explore the types available

By Mark Stevenson Published
Out of sight doesn't mean out of mind when it comes to the rules around basement conversions. Build expert, Mark Stevenson explains what you'll need to consider

By Mark Stevenson last updated
Discover if your self build project is eligible for a VAT claim, as well as the common pitfalls to avoid to ensure you don’t miss out on thousands of pounds

By Mark Stevenson Published
The low-down on how to get your extension's drainage right to avoid any expensive and time-consuming mistakes

By Mark Stevenson last updated
Insulating a roof well isn't just about adding extra insulation, its about making sure you know the difference between a cold roof vs warm roof and here's why

By Mark Stevenson Published
A basement can be one of the trickiest areas to insulate in a building project as you often need to address other factors such as ventilation at the same time

By Mike Cruickshank, Mark Stevenson, Sarah Harley last updated
Using a timber frame construction is a popular choice amongst homebuilders, but what's involved? Experts explore this method of creating a home

By Mark Stevenson Published
When planning a kitchen extension, it's important to correctly assess how long the project might take, not only for practical reasons but also for budgeting

By Mark Stevenson Published
Getting enough light below ground is one of the biggest challenges of basement conversions. Mark Stevenson explains how to add light to a basement conversion

By Mark Stevenson Published
If you are planning a kitchen renovation any time soon, check out the main mistakes to avoid, as explained by self build expert, Mark Stevenson

By Mark Stevenson Published
If your self build design is based on an eco-led approach, the chances are you'll need deeper pockets, but here's why it's worth the investment upfront

By Mark Stevenson Published
Wet rooms may look great, but are not without their risks. Build expert Mark Stevenson shares the most common wet room mistakes and how you can avoid them

By Mark Stevenson Published
Using SIPs to build an extension is not without its benefits. But is it the right material for you? Mark Stevenson explains what to consider before you choose

By Mark Stevenson Published
Sometimes conversion isn't always the most sensible route. We explain the factors to consider when deciding what to do with an old barn

By Mark Stevenson Published
Extending a barn conversion isn't the same as your average extension project. Build expert Mark Stevenson examines the potential obstacles you might face

By Mark Stevenson Published
Truss loft conversions can be trickier than normal loft conversions, but with some structural changes you can still create the loft conversion you need

By Mark Stevenson Published
Kitchens with vaulted ceilings look great, but can be risky. Building expert, Mark Stevenson reveals the hidden problem you might not have considered

By Mark Stevenson Published
Our self-build expert reveals which elements are worth investing in and where smart compromises can help keep costs under control
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