CHLOS CEANN ÁLLAINN

For well over a week, each day I run, walk, or smoke a cigar along the Lagan River, passing a row of houses, of which the nearest to the river has an inscription on what looks like a street sign. Each day I looked at the inscription, and something kept telling me that it somehow does not seem to be the name of a street.
I finally photographed it, and decided to find out its meaning.

A beautiful one/head was heard

Irish Gaelic
Chlos: Foirm chanúnach nó thraidisiúnta (an saorbhriathar san aimsir chaite) den bhriathar clois, a chiallaíonn chualathas (it was heard).
Ceann: Ball coirp (head), ach go minic sa Ghaeilge úsáidtear é chun tagairt a dhéanamh do dhuine nó do rud sonrach (one).
Állainn: Focal a chiallaíonn go hálainn, gleoite, nó dathúil (beautiful).

English translation:
Chlos: A dialectal or traditional form (the autonomous past tense) of the verb *clois*, meaning *chualathas* (it was heard).
Ceann: A body part (head), but in Irish it is often used to refer to a specific person or thing (one).
Állainn: A word meaning beautiful, lovely, or handsome.

It makes sense to me that an island which has given birth to so much music, art, and words through a considerable amount of beautiful minds (W. B. Yeats, James Joyce, C. S. Lewis, Francis Bacon, Oscar Wilde — amongst many more) will find ways of displaying their fruits on common house walls along the river.