What the assessment needs to establish
Redbridge advises that removing a load-bearing wall needs building-regulations approval and appropriate structural design. The investigation should establish what the wall supported and how those loads are now carried. Give the engineer the alteration history and any original plans or calculations, rather than asking only whether the exposed beam “looks big enough”. [1][4]
LABC’s steelwork guidance highlights the beam design, its bearings and the possible need for padstones to avoid crushing the supporting masonry. It also identifies fire protection as a separate consideration. These are reasons to inspect the whole support arrangement, not to choose a replacement beam from a generic span table. [2]
Ask for the findings to distinguish observed construction from assumptions. A written appointment should make clear the engineer’s services and any further investigation or design needed. Where supports are concealed, agree what information must be obtained before a conclusion can be given. [4]
Check fire safety as well as structure
Removing an internal wall can change the escape arrangement, especially near a staircase. Redbridge’s guidance specifically warns that this can create fire-safety issues. A structurally adequate beam does not answer whether the changed layout provides the required protection. [1]
For a house with a converted loft, make sure the technical adviser knows the full layout rather than assessing only the ground-floor opening. Safe escape is one of the matters addressed by the building-regulations assessment of loft accommodation. [5]
Resolve the building-control position
Retrieve the application history where possible. An approved drawing and an issued completion certificate serve different functions; a job may have received approval but not reached the necessary final inspection. Existing records can therefore change the remedy. [6]
If the work was carried out without the necessary approval and is eligible for regularisation, the council may ask for calculations, inspection of concealed construction and corrective work. Planning Portal explains that the owner may need to expose, remove or rectify work. Paying for new calculations does not automatically produce the council’s certificate. [3][7]
Older work outside the regularisation route still needs its condition and transaction implications assessed. Buckinghamshire’s guidance directs sellers with pre-cut-off work to their solicitor rather than suggesting that a retrospective certificate can always be obtained. [8]
Plan any opening up or repair
Have potentially load-bearing alterations assessed before work begins. HSE requires competent decisions about methods and temporary supports; the support must remain effective through the proposed sequence. Do not let investigative opening up remove something that is carrying load. [9]
Where a repair involves cutting into or working on a party wall, establish the separate notice procedure before the new work starts. The statutory examples include cutting into a party wall, not merely building a completely new extension. [10]
What to retain afterwards
Keep the engineer’s report and calculations, the agreed repair specification, photographs and the resulting building-control document together, while preserving their different scopes. Richmond explains that building-control visits are regulatory inspections rather than continuous supervision of workmanship. A well-organised record should say what was checked, what was changed and what remains outside the assessment. [11][4]