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How to identify flood marks during a viewing

Written by CribCheck, reviewed by the CribCheck inspection team. Last reviewed 18 September 2026.

Part of Flood-prone areas in Lagos: what house hunters should check before renting

Short answer

Look for a horizontal silt or discolouration line across gates, fences and the base of external walls, salt or powdery deposits on plaster, blistered paint and swollen skirting at a consistent height, rust lines on gates and burglary proofing, and tiling or plaster replaced only up to a certain level.

Outside

  • A silt or discolouration line at the same height across gate, fence and wall.
  • Rust starting at one height on the gate and on burglary proofing.
  • A raised threshold, ramp or sandbag store at the entrance.
  • Sand and debris pushed against the fence line on one side.

Inside

  • Blistered paint, salt deposits and swollen skirting at a consistent level.
  • Tiling or plaster replaced only up to a certain height.
  • A musty smell in the lowest rooms, and doors that stick at the bottom.
  • Fresh paint on the lower half of walls only.

Measure the height of the mark and photograph it beside something of known size. That single photograph tells a landlord you know what you are looking at.

Seeing cracks, damp or signs of old repairs?

Don't guess. A CribCheck-trained inspector can test what you cannot, and you get a reviewed report before you negotiate or pay.

Book an expert inspection

What to do next

Check this home with CribCheck while you are still there. Record what you see, get a condition score with indicative repair costs, and keep it to compare against other homes.

Before you pay, CribCheck it.

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