This is what appears for property location on immoweb.be:

"1000i-:Bruxelles
Request address to the agency"
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I tried the old fashioned approach, and noted addresses of houses with a physical "vendre" sign. But the details are missing - I cannot search for a particular address either .

I have discovered that immo.vlan.be is competent enough to give a map with icons exactly where a house sits, but a lot of listings are missing. Are there any sites with maps like immo.vlan.be, but with more listings?
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I'm actually becoming very unmotivated to buy a house in belgium. I don't understand why sellers are not trying to interest buyers. Why no weekend open houses? Why are houses so messy when they are shown?
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BTW, something is wrong with this editor. It just cut off the whole first paragraph that I typed. I'm too lazy to retype it.