Help! Can't decipher the address on a Dublin birth certificate.

[cad]

Please help, we can't work out some of the handwriting on a birth certificate.
The birth occurred in 1931 in South Dublin Workhouse.
The extract I have put here is the mother's details, her name is Ohara and the squiggle under that I take to refer to her unmarried status, as there is no father listed.
Under that squiggle is the number 4 followed by a place name that I assume starts with "Bally" and under that is another bit of shockingly bad handwriting which we assume says Dublin, but really, who knows?
If anyone can enlighten us, please pass on your wisdom, we REALLY want to know.
Thanks all.

[Dundee]

The last word looks like Avenue to me.  There is a Ballygihen Avenue at Sandycove.

Debra 

[cad]

The last word looks like Avenue to me.  There is a Ballygihan Avenue at Sandycove.

Debra 

Thanks Debra, I think you might be onto something there

[Dundee]

I have fixed the spelling, it is Ballygihen.

Debra 

[Kiltaglassan]

OP, always a good idea to provide a larger snip with more text around the area in question.