Commercial Property Investment Calculator
Calculate commercial property yields, cash flow, and net returns in South Africa — including NNN lease analysis, commercial vs residential comparison, and SAPOA vacancy benchmarks
| Item | Monthly | Annual |
|---|---|---|
| Gross Rental Income | R 50 000 | R 600 000 |
| Vacancy Loss (12.0%) | R -6 000 | R -72 000 |
| Effective Rental Income | R 44 000 | R 528 000 |
| Bond Repayment | R -29 603 | R -355 239 |
| Net Cash Flow | R 14 397 | R 172 761 |
Understanding Commercial Property Investment in South Africa How to use • Yields • Example
How to Use This Calculator
Enter the purchase price of the commercial property, your deposit percentage (SA banks typically require 40–50% for commercial), and the interest rate. Commercial bond rates are higher than residential — typically prime + 1.5% to 2% (11.75–12.25% currently).
Select your lease type: Triple Net (NNN) leases are common in SA commercial property and mean the tenant pays all operating costs. Use the Commercial vs Residential tab to compare the two investment types side by side.
Key Differences: Commercial vs Residential in SA
Commercial property in South Africa typically delivers higher gross yields of 8–12% compared to residential yields of 5–8%. However, the higher deposit requirement (40–50%), shorter maximum bond term (15 years vs 30 years), and higher vacancy risk during economic downturns create different risk/reward profiles.
Worked Example
Siphamandla buys a small retail unit in Roodepoort for R5,000,000. The bank requires a 50% deposit (R2,500,000). His bond is R2,500,000 at prime+1.5% (11.75%) over 15 years — monthly bond payment: approximately R28,800.
He gets a NNN lease at R50,000/month. With a 12% vacancy rate, effective monthly income is R44,000. Monthly cash flow: R44,000 − R28,800 = R15,200.
Gross yield: 12%. Net yield (after 12% vacancy): 10.6%. Cash-on-cash return on the R2.5M deposit: approximately 7.3% per year — better than most savings accounts.
Frequently Asked Questions
What deposit do I need for a commercial property bond in South Africa?
South African banks typically require a 40–50% deposit for commercial property bonds — significantly more than the 10–20% required for residential properties. This is because commercial properties are seen as higher risk: they are harder to sell (less liquid), vacancy impacts are more severe, and values fluctuate more with economic cycles. Some banks may consider 30% for very strong applications with long-term tenants on place, but 50% is the typical benchmark for smaller commercial properties.
What is a Triple Net (NNN) lease in South Africa?
A Triple Net (NNN) lease is a commercial lease structure where the tenant agrees to pay all three "nets" in addition to the base rent: property rates and taxes, building insurance, and maintenance and repairs. This is very common in South African commercial leases, particularly for retail and industrial properties. From the landlord's perspective, a NNN lease is highly attractive because your income is essentially fixed with minimal management cost — making the yield more reliable.
Do I need to charge VAT on commercial property rental in South Africa?
If your annual commercial rental income exceeds R1 million, you must register as a VAT vendor and charge 15% VAT on your commercial rental invoices. This is paid to SARS after you claim input VAT on your expenses. Importantly, VAT does not come out of your rental — it is paid by the tenant on top of the agreed rent. If the lease says "R50,000/month plus VAT", the tenant pays R57,500. Residential property rental is VAT-exempt.
What is the typical commercial property vacancy rate in South Africa?
According to SAPOA (South African Property Owners Association), office vacancy rates have been elevated since the pandemic, averaging 15–18% nationally in 2025 in major CBDs. Industrial and logistics properties have much lower vacancy rates of 4–6% due to strong demand. Retail properties typically run 8–12% vacancy. Smaller commercial properties in well-located nodes with good infrastructure perform significantly better than large office parks in older business districts.
What are the typical yields for commercial property in South Africa?
Commercial property in South Africa typically yields 8–12% gross, well above residential yields of 5–8%. Industrial and logistics properties often yield 9–11%, retail strips 8–10%, and standalone office buildings 7–9%. Net yields (after vacancy and operating costs under a gross lease) are typically 2–4% lower than gross. Listed REITs (Real Estate Investment Trusts) on the JSE — like Growthpoint, Redefine, and Fortress — provide an accessible way to invest in commercial property without direct ownership.