If the one with the apartment relates to a previous employment and you've nothing to do with that employer anymore, then yes you can do what you're suggesting at age 50. You can retire this pension plan, withdraw the cash as your tax-free lump sum and transfer the apartment into a self-administered Approved Retirement Fund (ARF). If there's only €100,000 in the bank account then you may not be able to extract the full 25% as €500,000 x 25% = €125,000, but maybe there will be enough in the bank account to sort this by the time you hit 50, or you could wait until there is.
Then at 60 you can retire your newer pension plan and withdraw 25% of its value as a tax-free lump sum.
First €200,000 of all lump sums taken is tax-free. From €200,000 to €500,000 is taxed at 20%.
There's another method of calculating the lump sum, relating to your salary and service, which can sometimes work out better than 25% of the fund. You should ask your broker to calculate using both methods before you make your final decision.
Regards,
Liam
www.FergA.com