New paint and luxury finishes on a tired structure do not make a building safe; they can hide the danger for years until it shows up worse and costlier. So in restoring old buildings, the first step is a structural assessment, not a quote from a finishing contractor. This guide explains why assessment comes first, what the engineer inspects, the tests used, what the report can decide, and how it sets the regulatory route and the real cost of your project.
Why Assessment First?
- It establishes whether the problem is superficial or in the load-bearing elements.
- It sets the regulatory route: restoration, per Balady, does not include changing structural elements.
- It protects you from spending money restoring a building that needs strengthening or demolition.
- It gives you a realistic budget based on the building's actual condition, not estimates.
What Does the Engineer Inspect?
- Columns, beams and slabs: cracks, corrosion and exposed rebar.
- Foundations and signs of settlement.
- The effect of leaks and damp on the concrete, especially in bathrooms, roofs and basements.
- Earlier unplanned additions that increased loads.
- The condition of the roof waterproofing, the source of most problems in old buildings.
Tests Commonly Used
| Test | What it reveals |
|---|---|
| Visual inspection and documentation | The type, location and pattern of cracks |
| Rebound hammer | An estimate of concrete surface strength |
| Concrete cores | The concrete's actual strength |
| Rebar scanning | Rebar locations and concrete cover thickness |
| Corrosion measurement | The degree of rebar corrosion |
The engineer chooses tests based on the case; not every building needs all of them. See our structural inspection reports service.
Does the Current Code Apply to an Old Building?
Balady answers that whether the Saudi Building Code can be applied to existing buildings depends on the engineering office's report. In other words, the report is the reference for deciding what must be upgraded.
Possible Decisions
| Report finding | Route |
|---|---|
| Superficial or non-structural defects | A restoration permit |
| Elements needing strengthening | A modification route and strengthening design per the office's report |
| Unsafe structure, repair not worthwhile | Demolition. Read Buildings at risk of collapse |
Common Strengthening Methods
- Jacketing columns with concrete or steel.
- Carbon fibre (FRP) for beams and slabs.
- Treating corroded rebar and restoring the concrete cover.
- Underpinning foundations or soil grouting in settlement cases.
The method depends on the report, the cost and the downtime allowed.
Before Buying an Old Building
Structural assessment is not only for current owners; if you plan to buy an old property, the report reveals the cost of fixing it before you sign. Read: Building inspection before purchase and Structural inspection of an old property.
Frequently Asked Questions
How long does the assessment take?
It depends on the building's size and the tests required.
Do I need an assessment for minor restoration?
If the problem is clearly superficial, an inspection may be enough, but any structural sign calls for an assessment.
Is strengthening always cheaper than demolition?
Not always; the report compares the cost with the building's remaining life.
Can people live there during strengthening?
It depends on the type of work and the degree of danger, as the engineer decides.
How do I tell a dangerous crack?
Read: Cracks in buildings: when are they dangerous?
How Abak Engineering Consultancy Helps
Abak is an accredited engineering office in Riyadh that carries out structural assessments of old buildings, designs strengthening solutions, and handles the restoration or modification permit and construction supervision. Learn about our structural inspection reports service, or contact us.
Regulatory information is based on the Balady platform and the Ministry of Municipalities and Housing, and procedures may be updated by the competent authority. Last reviewed: October 2026.
