How Converting a Garage into a Flat Can Add Value and Income

Deen Gabriel
4 hours ago
2 min read

Many homeowners have extra space like garages, basements, or lofts that aren’t being used. Converting these areas into a self-contained flat is a smart way to increase your property value and generate extra income. But before starting, it’s essential to understand the costs involved and the potential returns.

Estimating the Costs

A typical garage conversion into a small flat includes:

Structural work and insulation: R15,000 – R35,000
Plumbing and electrical installations: R20,000 – R40,000
Bathroom and kitchen fittings: R25,000 – R50,000
Flooring, painting, and finishing touches: R10,000 – R25,000

Overall, you can expect a conversion to cost anywhere between R70,000 and R150,000, depending on the size, finishes, and whether professional services are used. Getting a detailed professional estimate before starting ensures you know the realistic costs and can plan your budget effectively.

Potential Income

Once completed, a self-contained flat can generate a steady rental income. In most urban areas:

Small one-bedroom flats can rent for R6,000 – R10,000 per month
Two-bedroom flats may fetch R10,000 – R15,000 per month

This means that, depending on your location, you could recoup the initial investment in as little as 12–24 months, after which the flat becomes a source of passive income.

Why Professional Estimating Matters

Accurate estimating isn’t just about avoiding overspending. It also helps you:

Decide which materials and finishes make sense within your budget.
Plan the project timeline efficiently, avoiding delays.
Calculate a realistic return on investment and rental income.

By knowing the numbers upfront, you make informed decisions, control costs, and maximise the value of your renovation.

Final Thought

Converting an underused garage into a flat can transform wasted space into a profitable investment. With careful planning, professional cost estimates, and smart design choices, you can create a rental unit that pays for itself and adds lasting value to your home.