edited to reflect purchase time of August 2002 instead of August 2008 and including the Indexation value also.
purchase price of €175,000 indexed at 1.049 = €183,575.
purchase price + purchase expenses + upgrades (assuming you didn't already claim tax relief against rental income on these) + selling costs (these seem low considering you have estate agent fees and solicitor fees etc) = €183,575 + €7,152 + €6,000 + €5,200 = €201,927.
Assume you sell the house for €250,000, then your gain or profit is €250,000 minus €201,927 = €48,073.
Assume you sell the house 15th August 2022 then you have owned the house for bang on 20years, or 240 months. Of that time, you lived in it for 19 months and Revenue "allow" another 12 months assumed occupancy so 31 months out of 240 months. So 31/240 equates to 12.91% of the time you owned it. This percentage of the "gain or profit" is free of CGT, so that's 12.91% of €48,073 which equals €6,206.
There is a taxable gain of €48,073 - €6,206 which equals €41,867. You have a CGT allowance each year of €1,270 so your taxable gain is further reduced to €41,867 - €1,270 = €40,597. You pay CGT @ 33% on this, so your CGT tax liability will be €13,397. You pay revenue that and you keep the balance.