Building from dirt is the cheapest path, but it is slow — and sometimes you need a roof now (a growing family, a new posting). Rent-to-own is the other door.
You move into a finished house and pay it like rent on a long lease — often 1 to 5 years, some schemes up to 8. The difference from normal rent: a chunk of every payment is credited toward buying the house. At the end of the term you own it, settling any balance with savings or a SACCO loan.
Picture it: you pay 400,000 a month, and 100,000 of that counts toward the purchase price. You are living in your future home while you buy it — instead of pouring rent into a landlord's pocket for nothing.
Know the two flavours before you sign
Lease-purchase — you are committed to buy at the end.
Lease-option — you can choose to buy or walk away; but if you walk, you usually lose the equity portion you have paid in.
Be careful — this is where people get hurt. There is usually a non-refundable option fee (5 to 10%) upfront; read every line of the contract; deal only with reputable, registered providers (some schemes are outright scams); and remember that missed payments can cost you both your equity and your credit standing. Done right, rent-to-own turns dead rent into ownership. Done carelessly, you can lose the house and the extra you paid.