[micheloosterhof]

I've searched for houses in multiple places around the world and the unwillingness to provide the full addresses is often due to agent competition. More precise whether the seller has one or more selling agents.

In places like The Netherlands, a seller generally works with one seller's agent only, and there's no incentive to hide full addresses. Funda.nl has a huge amount of detail, from high quality photos, to floor plans.

On the contrary, in Singapore, a seller often has multiple agents. The agents compete with each other and would rather not share any information at all publicly to avoid other agents using their information/photos, or buyer's bypassing them. It leads to propertyguru.com.sg with no addresses, bad photos, all photos watermarked with the agent pictures. As little information as possible, just enough to draw you into an in-person visit.