
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

Mineral wool vs fibreglass insulation — how to choose between these for your project
By Mark Stevenson published
When adding insulation to your build, both mineral wool and fibreglass are go-to options. Here we look at how to choose between them

Do you need building regulations approval for installing a log-burning stove?
By Mark Stevenson published
Our expert explains how to comply with building regulations when it comes to installing a log burner

Can you install solar panels on listed buildings? Our expert advises
By Mark Stevenson published
While solar panels on listed buildings are becoming more acceptable, we take a look at whether they should be installed on all listed homes and if not, why?

Here's what you really need to know about installing solar panels in conservation areas
By Mark Stevenson published
Our building expert explains everything you need to consider if your home is in a conservation area and you are hoping to install solar panels

Are solar panels on a flat roof a good idea?
By Mark Stevenson published
If your roof design isn't sloped, can you install solar panels on a flat roof? We explore everything you need to know to ensure they work effectively

I'm a building expert and here's how I choose between private building control and Local Authority Building Control
By Mark Stevenson published
Discover the differences and whether to opt for private building control or Local Authority Building Control. Plus, the latest changes you need to know

What building control costs can you expect for your self build project?
By Mark Stevenson published
Our expert Mark Stevenson details all the costs to consider when looking at how much building control is likely to cost

Building notice vs full plans approval: We look at your building regulation options
By Mark Stevenson published
If you need building regulations sign off for your project, there are two routes you could take. Here, our expert explains both – building notice and full plans approval – so you can make the best choice between the two

Timber build systems — we dispel the most common myths
By Mark Stevenson published
Timber build systems are the most popular construction method in the UK, but can still arouse suspicions. Expert, Mark Stevenson is here to dispel some of the most common myths

Timber frame vs SIPs: Weighing up which is best for your build
By Mark Stevenson published
Looking at timber frame vs SIPs is increasingly common amongst both self builders as well as those looking to extend – but which construction method is best for you? Expert Mark Stevenson is here to explain everything you need to know

Conservatory building regulations: Do you need them?
By Mark Stevenson published
Confused about conservatory building regulations? Find out the answers to all your questions in our expert guide to the relevant rules and regulations

How to install your mains drainage and services
By Mark Stevenson last updated
While it might not be the glamorous part to a build, our self build expert Mark Stevenson gets stuck into explained what you need to know about installing your mains drainage and services

A guide to building with masonry — cavities, wall ties, process and more
By Mark Stevenson published
Our self-build expert looks at building with masonry to construct the superstructure of your project

Timber vs masonry: Which building system should you choose?
By Mark Stevenson published
With timber and masonry the most popular methods for building houses and extensions, how do they compare when it comes to efficiency, safety and environment?

Loft conversion building regulations: What you need to know
By Mark Stevenson published
Although a loft conversion may not require planning permission, you are still bound by building regulations. Here's why and which Approved Documents will apply the most

Building Regulations Part H: Our expert guide to drainage installations
By Mark Stevenson published
Our expert Mark Stevenson explains what you need to know about part H of the building regulations so you can get your drainage right and avoid costly mistakes on your project

I'm a professional builder and this is how I manage a project timeline
By Mark Stevenson published
Mark Stevenson looks at how a project timeline is managed and what tools the professionals use to make sure the build gets started, and finished, on time

Timber frame construction: Everything you need to know
By Mike Cruickshank, Mark Stevenson last updated
Timber frame construction is one of the best options for self builders wanting speedy build times and a beautiful, energy efficient home. We explain all to help you decide if this is the right route for you

Planning Permission to Demolish and Rebuild: What to Know
By Ken Dijksman, Michael Holmes, Mark Stevenson published
Planning Hub Understanding the rules around securing planning permission to demolish and rebuild is essential to make sure you don't waste money on a plot you can't develop

Do Designated Areas Make Good Building Plots?
By Sally Tagg, Mark Stevenson, Ken Dijksman published
Planning Hub Plots in designated areas, such as an AONB or Conservation Area, hold strong appeal to self builders - but can you actually get permission from the local planners to build?

Planning Conditions: The Ultimate Guide
By David Snell, Ken Dijksman, Mark Stevenson published
Planning Hub Don’t overlook the attached planning conditions in the euphoria of gaining planning approval. Failure to discharge conditions can invalidate the permission for your build — ignore them at your peril!
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