I have finally managed to save a small deposit for my first investment property but its only enough for a unit. I understand the value of a house can go up by approx 4% per year, which sounds great to me because then I could build my portfolio. I am wondering about the value of a unit? Does it increase, decrease or stay stagnant? With 4 children and no house of my own, it's been hard going saving the $7,000 that I have, I would really like to get into the market now rather than wait another 5 years.