Retaining walls across the Lower North Shore.

The Lower North Shore - Mosman, Cremorne, Hunters Hill, Northbridge - is the leafy harbourside belt where almost every block slopes toward the water. Retaining walls here are structural infrastructure, not afterthoughts: tall concrete-block walls with engineered footings and substantial drainage are common. We pair them with brick fence finishes on top to read as one continuous boundary. Council heritage controls and harbour-view sightlines are real factors. Engineering certification is standard for the heights typical here.