Close-up of the flowers

I found a street tree that was covered in these little white flowers. The perfume was lovely & filled the air for many metres around the tree.  It looked like a Melaleuca & I thought it may be White Lace or White Cloud, but the flowers don’t fit the images I found of those 2 varieties.  The flowers do look like white clouds.

It is a compact tree at around 5 metres with a small straight trunk & a ball of foliage probably 3 metres wide.  It is growing in a hole in the concrete footpath on a hill & would have little chance to collect rainwater so it must be tough.

Do any of you know what type of tree this is?  I’d be grateful for information.

The flowers were prolific with many buds yet to bloom