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We  offer a wide range of courses for members and non-members alike, so whether you're a building control professional, architect, specialist tradesman, site manager or self employed builder book onto one of our training courses to make sure your knowledge is up to date.

LABC's training courses for Autumn 2018

​Keep checking our training pages as we will be announcing more dates and courses throughout the year. If you see a course you would like us to run in your region, call us on 020 8616 8120 or email

LABC have announced two more dates for its Fire Safety Specialist competence validation programme. Assessment days in London, Birmingham, Bristol and Manchester will be held on 25 September and 30 October.

The assessment has been developed by LABC for its most experienced (Level 6) surveyors to demonstrate their competence in fire safety in higher risk and complex buildings. The Institution of Fire Engineers (IFE) has worked with LABC on the process and have confirmed that by passing the assessment, individuals will be able to gain access to associate membership of the IFE (AIFireE) subject to an appropriate professional portfolio.

Successful participants will be given a certificate of competence as a Level 6 LABC Building Standards Fire Safety Specialist as well as a licence card.

All assessments are confidential and further details can be found here.

What is ground heave?

If your home is built on clay soil, then ground heave may become an issue. Ground heave is the upward movement of the ground usually associated with the swelling of clay soils that expand when wet. The result is that the exposed upper surface of the ground rises up.

The impact of heave is opposite to the effect of ‘subsidence’ which is where the ground is unstable and sinks downward, or ‘settlement’ which is caused by the weight of the building. What surveyors call ‘ground displacement’ is generally less that 150mm but it’s important to bear in mind that even this can lead to serious structural damage to your buildings walls and foundations. This can happen in certain types of soil when a tree (or trees) that was previously absorbing large quantities of water is removed.

Heave can also occur in soils vulnerable to frost, leaking drains and/or water supplies. A single tree can remove as much as 150 litres of water a day. The maturity, size and type of tree, how absorbent the clay soil is and water table will all affect the amount of ground movement after the trees removal.

Determining when heave might occur is difficult - it could be after a couple of ‘wet’ months or after years but it’s always best to take it into consideration!

Common signs of ground heave

  • Cracking to brickwork and windows: this cracking is more likely to be vertical, whereas subsidence cracking is more likely to be diagonal.
  • Doors sticking as their frames become out of square
  • Lifting of paths and patios surrounding buildings

The remedial costs associated with heave can be substantial. So it’s vital that you call your local authority building control department to discuss how they can help.

Once you have chosen your surveyor, they will more than likely do some investigations to determine whether you have ground heave. This may include visual inspections, historic research and drilling boreholes or trial holes to determine the type of soil and assess it’s plasticity or how shrinkable the ground might be.

If you’re worried that cracks etc may be ground heave, subsidence, or settlement give your local authority building control department a call to find out how they can help.

Need further advice on renovating, repairing or building your home?

We have a section devoted to homeowners that includes advice on building regulations, avoiding cowboy builders, common renovation projects and more.

Visit 'For Homeowners'

(Picture credit cc-by-sa/2.0 - © Albert Bridge -

Oracle Cancer Trust is the UK’s leading charity dedicated to funding pioneering research into head and neck cancer. Over the past five years Oracle has spent over £1.5m in research that has resulted in real breakthroughs discovering kinder and better treatments for the 14,000 patients who undergo treatment for head and neck cancer in the UK every year. 

Head and neck cancer is a cause close to the heart of LABC President, Chris Griffith-Jones. “When I heard of Oracle, it seemed that someone had designed a charity for me. Tragically, in two short years I lost my sister Julie to thyroid cancer and my father Colin from salivary gland cancer.  The devastation of the disease affected my mother greatly and sadly she died last year as well. This disease cuts families in two. My aim for my Presidential year, with your support, is to raise as much money for research as I can and to raise the profile of Oracle and its fight against one of the most physically debilitating forms of cancer.” 

Head and neck cancer: the facts

Everyone knows someone who has been affected by cancer. But not everyone may be aware of the devastating impact of head and neck cancer. There are over 30 types of head and neck cancers that include cancer of the mouth, voicebox, nose, salivary and thyroid glands.

Cases have risen by over 90% since the 1970s yet funding into research is almost half of the research spend for breast cancer. Every 36 minutes, someone in the UK is diagnosed with head and neck cancer.  Head and neck cancer is the sixth most common cancer in the UK and the most common in parts of the world like India and Pakistan where it accounts for over 20% of cancer cases.

Because of the delicate and sensitive tissues in the head and neck area, patients undergoing treatment for head and neck can experience life changing side effects from surgery and radiotherapy treatment to treat their cancer. This can include facial disfigurement, permanent loss of taste, speech difficulties, loss of smell and the ability to swallow. 

Established in 1979, Oracle was founded to meet the urgent need to discover newer and kinder treatments for head and neck cancer. Since then we have worked tirelessly funding tests and treatments and investing in the pioneering scientific projects that deliver real long-term benefits to patients. Our research programmes and discoveries have resulted in breakthroughs in radiotherapy, drug development, and advanced surgical techniques. Now, 65% fewer patients are suffering with dry mouth after their radiotherapy treatment; pioneering immunotherapies which harness the body’s immune system to kill cancer are being developed in the lab; and blood tests now exist to track how well a patient is responding to their cancer treatment. Each project is selected by our team of world renowned cancer experts for their potential to advance our understanding of head and neck cancer.

Help us reach our goal

We're aiming to raise £20,000 for Oracle - and we're part of the way there with a fantastic £15,000 in five months! A massive thank you to all those who've helped us raise so much in so little time. Contribute to this great cause:

Donate now

Or find out more about Oracle Cancer Trust

Improvements to Part L of the Building Regulations have ensured highly insulated roofs and this, coupled with heavy snowfall, has the potential to cause gutter problems.

When a thaw sets in the snow will slide down the roof, taking with it anything in its path including gutters fitted too high under the roof edge. Prior to the installation of a highly insulated roof, the snow would merely melt as it fell onto the roof surface.

Traditionally, eaves gutters have been installed as high as possible under the roof edge to ensure that overshooting of rainwater does not occur and/or to hide an unsightly roof edge. It also had the advantage of providing protection against wind driven rain but also means that there is a higher risk of damage by sliding snow.

Three important points when installing guttering

  • British Standard BS 5534 states that roof tiling should project a minimum of 50mm from the vertical face of the fascia board
  • Different types of roof surfaces will create either more or less projection of discharge at the roof edge; for example, water will flow faster down a smooth tile than a granular tiled roof.
  • Greater care must be taken to make sure the gutters will not impede sliding snow. BS EN 12056: 3-2000 suggests that snow guards should be fitted where sliding snow may cause injury to people or damage structures below such as a glass conservatory.
High level gutter Low level gutter
High level gutter Low level gutter

The correct position and height of the gutter needs to be carefully determined, for example, whilst a lower level fitted gutter is less susceptible to sliding snow, it could result in wind driven rainwater going between the back of the gutter/roofline which can lead to water damage to the building fabric.

A gutter fitted at a higher level will alleviate this problem.

Each option has its benefits and drawbacks and more often than not the building design, gutter type and fixing will dictate how the gutter should be installed. Architects, installers and building owners should discuss the options available and ensure that all parties agree on the best possible solution for the site location, its potential for snow against the severity of exposure to driving rain.

Further information

Find out more by reading MGMA’s Eaves Gutter Installation Recommendations

Also read How to prevent damage by heavy, heavy snow

Although most people park their cars and vans on the road, occasionally we have to deal with an unexpected guest who arrives in their vehicle through the wall. 

When this happens it’s usually Building Control who’ll visit the site following a call from the emergency services to assess the structural implications that have been created. (The incident above was dealt with by one of our Central Bedfordshire team members - no one was injured, thankfully!) 

Building Control teams around the country have delegated powers under section 77 of the Building Act to deal with dangerous structures and, as in this instance, section 78 – Emergency Dangerous Structures.

This call can be at any time of day or night and while more common than you might think, it’s unusual to have two incidents like this within the same month.

You may have read the articles in the press or seen similar ones where it just states ‘a structural engineer’ or ‘a council officer’ attended the site.

In reality it’s Building Control who'll take the decision on whether it’s safe for the fire service to go into the building, whether the vehicle can be removed safely, what needs to be done to stabilise the building and arrange for this to be carried out so that they can leave the site safe having removed the danger. 

Often the residents need alternative accommodation, the building needs to be left secure and watertight, remedial work requires supervision and in some cases legal enforcement needs to be considered separately to any criminal investigation by the police.

This can sometimes take months to resolve before residents can return to their properties.

What do we do when we’re confronted with a dangerous structure like this? 

Well often it’s a deep breath first and then work through issues like isolation of gas, water and electric supplies, assessment of structural walls and damaged lintels, direction of supported floors and loads.

Work can then begin with the fire service to safely clear areas to allow temporary props to be installed to prevent further collapse. Once done the vehicle can be carefully removed to permit any additional propping and security hoarding to be installed.

Decisions are then made around how best to repair the building.

This part of Building Control's work can be complicated, dangerous and decisions need to be taken quickly to ensure conditions don’t get any worse.

So well done to the two building control teams involved in the photos, and the next time you see a similar photo in the newspapers spare a thought for the dedicated LABC officers out there helping to keep you safe.

View some of the dangerous structures our Building Control teams have dealt with.

Featured blog articles

Also read Builders and property owners feel the pinch and Fire doors in the dock

Published October 2017

The government’s new target of a quarter of a million new homes a year may well be needed - but will it create problems later on down the line? Making sure that housing is built well, and to a good enough standard is high on our agenda - it is also key to ensuring that the nation is housed in homes that maintain their value and last.

In this article LABC CEO Paul Everall talks about the ways that Building Control already ensures quality in house building, however he also talks about its limits and how he hopes recommendations from the All-Party Parliamentary Group for Excellence in the Built Environment  will be built on to ensure quality in the future.  Read more here.

You may have come across a recent BBC news item about a house collapse in London following basement renovation work. 

The property was thought to be worth in the region of £1 million and collapsed in the early hours of 3 April 2017.

Basement collapse in Kingston, London - picture from Kingston Building Control team(Picture on the left courtesy of the Kingston building control team.)

A building regulations application had only been submitted a few days previously and the building control team had not been given the opportunity to offer guidance or approval to this complex area of work.

Sadly this is not the first house collapse incident and it won’t be the last.

A similar house collapse at a property in Barnes, South West London in 2015 also followed basement excavation work, and in 2012 a property in Finchley, also undergoing a basement extension, collapsed with the owners only escaping serious injury by minutes.

Whilst this is the worst case scenario, other issues like cracking and misalignment of doors and windows due to minor subsidence can be frustrating.

As popularity in basement conversions continues to increase, the importance of using a competent builder following an approved sequence of works is critical.

Undermining an existing structure requires careful consideration and planning to ensure that the loads carried continue to be fully supported and transferred back to the ground correctly.

Help is at hand: ASUC

The Association of Specialist Underpinning Contractors (ASUC) offer access, guidance and insurance backed guarantees to accredited members.​ It is an independent trade association originally formed by a number of leading contractors to promote professional and technical competence within the subsidence industry.

Membership has now been extended to include a comprehensive range of specialist domestic services in underpinning and subsidence repair techniques, engineered foundation solutions and retrofit basement construction. 

View and download their Scheme Guarantees leaflet:

Further information

LABC in collaboration with LABC Warranty have put together a technical guide on basement design. View and download Better basements: design and construction technical guide.

Lath and plaster ceiling
Most pre-1930s houses will have traditional lath and plaster ceilings. Picture courtesy of Malone Associates Ltd

What is lath and plaster?

Laths are thin strips of wood (around 25-38mm wide and 3-8mm thick) spaced around 5mm apart and nailed to the ceiling joists above. Plaster was then applied to the underside of the laths, held in place by being squeezed through the gaps to create a ‘key’ or lug.

The plaster was usually made from lime mixed with sand and cement and included horse hair to act as a natural reinforcement and effective bonding key. The lime improves workability and breathability of the plaster. It was usually applied in two or three layers to a thickness of around 25mm. 

Interested? Read some more "My dad told me about them!" articles

How to check for lath and plaster

In older properties you can check the type of ceiling by looking under the loft insulation, or lifting a bedroom floorboard. If there are lots of small timber laths with creamy lugs of plaster in between, the ceiling is original.

The pros and cons

Plaster is brittle by nature and will crack at its weakest point under vibration or through water ingress. This weak point is usually at the lugs that wrap around the laths.  If this spreads across the ceiling even the horsehair can’t support the weight and the ceiling, or sections of it, will sag and then may collapse. Where sagging is evident the ceiling will move if gently pushed or make a hollow sound if tapped. Sometimes this failure can be disastrous, the collapse at the Apollo theatre in 2014 injuring 88 people during a performance was caused by water ingress weakening the lath and plaster ceiling.

However there are some good reasons for keeping an original lath and plaster ceiling. Aside from the features of an historic interior it has better soundproofing and insulating qualities than modern plasterboard. The mess associated with their removal, particularly over bedrooms with the debris found if loft spaces above will also make many think twice. Despite some being quick to condemn cracks or bulges they can usually be repaired for a fraction of the cost of replacement.

Irregular-shaped cracking, significant bulging or unevenness are more serious signs. Unless you can address the cause of the cracking there’s little point replastering because it may just crack again. Today's plasterboards have removed this problem although it’s still possible to get hairline cracking along board edges and blistering where screws haven’t been screwed in deep enough. 

There is also a tendency to take a short cut and overboard, leaving the existing ceiling in place. 

If this is being considered then you may need to check with an engineer to ensure the floor or ceiling joists are capable of carrying the additional load. Lath and plaster ceilings weigh around 0.5kN/m2 and plasterboard 0.15kN/m2. The screws used also need to be suitable and in sufficient number to take the additional weight.


Read some more "My dad told me about them!" articles

One of our surveyors came across this stairway on site recently.

Problem stair treads - these treads get deeper the higher up you go

Spotted the problem yet?

It's not an optical illusion, the stair treads increase in depth (the going) as you reach the top of the flight. 

Some might not view this as a problem. What's wrong with being able to fit your whole foot on the tread anyway?  

The issue isn't the walking up - it's when you come down...

The potential for injury  

For anyone unsteady on their feet or partially sighted, the change to a thinner step may cause them to lose balance and fall.

The higher up the flight, the greater risk of serious injury. 

That’s why you also need a full width landing at the top and bottom of a flight and can only have a door swing reducing the landing to 400mm clearance at the bottom (dwellings only). 

It is also the only part of the building regulations where a head height is stipulated for domestic properties.

The 2m head height (reduced to 1.9m for loft conversions) is to prevent hitting your head at the top of the stair or on the bulkhead, and falling.  

The solution

In this instance it was a concrete stair and relatively easy to overcome. 

Packing pieces were used to reduce the tread depth to a consistent going with the rest of the stairs and this also gave a larger landing at the top. Depending on the type of building, the going can range from 220mm to 400mm, but the golden rule is that twice the rise plus the going must always be between 550mm and 700mm. 

So for a 42 degree pitch private stair with a going of 250mm the rise must be between 150mm and 225mm.

Need to install a timber staircase properly? Read this.