We paid off our mortgage in our late 30s/early 40s. We have lived mortgage free for about 6 years. It’s been lucky as one of us were made redundant during Covid. However we’re both in jobs now. We would like to extend as we need a bit more space for us as we now work from home and our growing child. We have a detached bungalow and the extension of choice is around £75k. It will give us a lot more space. We are now 45 and 50 years old, are we mad to consider taking this on? We’d plan to have it paid by 65 for the oldest one. Our mortgage would be around £575 per month so much less than we paid whilst overpaying to pay it off.