Not sure the exact dates and you have up/down years, but in the last 36 months I can think of the following reasons for visiting the property. I should note this property is modern and the tenants were extremely good, no calls to change a lightbulb etc.
Annual owners management company AGM
Replace failed bathroom fan
Overflowing water tank and failed shower pump, two visits to meet plumber
Leak from upstairs apartment, talk to them to get it fixed then repaint ceiling, twice
Water off to apartment, no visit but back and forwards with building managing agent to discover building water pumps failed
Dryer element failed, visited twice to meet repair guy
Washer dryer eventually failed, visited to assertain this, visited when delivery guy could not complete the install
Annual gas boiler service
Tenants left twice to move home, so visited for inspection, visited to collect keys, visited to meet cleaner, visited to do some small repairs, visited to show to new tenants. So gonna say 10 visits in total here
Visited because of confusion over cabling for TV/broadband
Replace faulty light switch
Meet plumber because of leaking TRV on radiator
So total of about 10 visits per year on average. That would go down a fair bit if you had a tenant stay long-term, which I'd guess is more common down the country than in Dublin.
I'd intend to pay down the mortgage on my PPR if this place sells, invest money in the markets via pension etc.