
Mark Stevenson
Mark Stevenson has worked as a construction professional for over 30 years and following an extensive career in housebuilding. He is currently chief operating officer for Custom Build Homes and chair of the National Custom and Self Build Association. He previously worked as managing director for Potton, helping self builders build their own homes.
Whilst Mark describes himself as a ‘professional builder’ as a result of his career in housebuilding and timber building system manufacturing, he has specialist knowledge of timber construction and extensive expertise in finding land and project management.
He regularly shares his knowledge at Homebuilding & Renovating Shows and and coaches self builders about how to build their own homes. Aside from Mark’s professional career, his skills also extend to practical building knowledge as a skilled joiner, hands-on renovator and serial self-builder of his own development projects.
He is also Vice Chair of industry body, the Structural Timber Association.
Latest articles by Mark Stevenson

Why conservatory foundations should be as deep as the main house
By Mark Stevenson published
Our self build expert explains how to tackle conservatory foundations, including regulations and cost

How to build a garden room: A guide to consents, costs, insulation and more
By Mark Stevenson published
Our self build expert explains all the important aspects of building a garden room

Garden room foundations and how to choose the best system for your project
By Mark Stevenson published
Our self build expert explains what you need to know about garden room foundations, including the systems, costs and regulations

Cavity wall insulation — the pros, cons, types and regulations
By Mark Stevenson last updated
For a warm and energy efficient home, cavity wall insulation is a must. We take a look at the options available and offer advice on how to make sure you pick the right type to suit your project – and adhere to the current regulations

What do building plots cost and where can you find the best value for money?
By Mark Stevenson published
Self build expert, Mark Stevenson, takes a look at what you can expect to pay for a building plot in the UK, and where your budget will get you the best deal

How to finish a self build to a perfect and professional standard
By Mark Stevenson published
Our self build expert explains everything you need to know about the finishing stage, installing fixtures and fittings, floor finishes and decorating

I’ve found a plot with planning consent — do I have to build the approved design?
By Mark Stevenson published
The good news is you’ve found a plot with planning permission but the bad news is you don’t like the approved design. Our expert explains your options and how to overcome this stumbling block

I'm a self build expert and this is how to stop your project going over budget
By Mark Stevenson published
Every penny counts when building your own home, so here’s how to ensure you keep your project spend on track

I'm a self build expert and here are the pros of using a self build package company for your build
By Mark Stevenson published
Our expert explains what a self build package company is and what the main benefits might be if you decide to use one for your build

How long does insulation last? Plus how to spot if it needs replacing
By Mark Stevenson published
Insulation, like most building materials has a lifespan. But how long does insulation last and how do you know when it's time to renew it?

9 common mistakes to avoid when buying a building plot
By Mark Stevenson published
Our self build expert explains some of the mistakes people make when looking to buy a building plot – and how to make sure you don't do the same

I'm a self build expert and here's my advice for managing your own self build
By Mark Stevenson published
Thinking of managing your self build? Mark Stevenson gives his advice on how to make building your new home as stress-free as possible

Finding a plot to build on — 14 key steps to success
By Jason Orme, Mark Stevenson last updated
Not sure how to start finding a plot? Our experts have come together to share their 14 top tips to help kickstart your project

8 steps to buying a building plot without planning permission — and to avoid purchasing an expensive dud
By Mark Stevenson published
Could buying land without planning be a route to an affordable plot? Plotfinding expert Mark Stevenson shares his advice — and explains how to avoid paying a premium for land that can’t be developed

What is an infill plot — and could one provide the perfect site to build your dream home in 2025?
By Mark Stevenson published
Plot expert Mark Stevenson explains what is an infill plot, his insider tips for finding one, and the potential benefits and challenges of self building a home on this type of plot

How to insulate a timber frame if you're not using a pre-insulated closed panel system
By Mark Stevenson published
Knowing how to insulate a timber frame matters if you're not using a closed panel system. Here's what to consider and some of the options available to you

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
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