Sandton remains the deepest office node in Africa, and 2026 is rewarding landlords who understand that the market has split in two. Premium, green-certified space with reliable backup power is letting well; undifferentiated B-grade stock is competing on price alone.

The flight to quality is structural, not cyclical

Corporate tenants consolidating their post-hybrid footprints are taking less space but better space. The result is a two-speed market: P-grade and green-certified A-grade buildings around Sandton Central, Katherine Street and the Gautrain precinct command firm rentals and shorter void periods, while older stock further from transport sees extended vacancies and heavy tenant-installation demands.

What space actually costs

Asking rentals in Sandton in 2026 broadly range from R120–R160/sqm for B-grade space, R160–R230/sqm for A-grade, and R230/sqm upwards for premium towers, before parking and operating costs. Effective rentals — after rent-free periods and TI allowances — often sit 10–15% below asking. Landlords who price to effective market levels early consistently outperform those who hold asking rates through six vacant months.

Power, water and the green premium

Backup power and water resilience have moved from marketing points to lease prerequisites. Buildings with full generator or solar-plus-battery coverage and EDGE or Green Star certification are achieving measurable rental premiums and materially better tenant retention. For owners of older buildings, resilience retrofits now show among the best returns of any capital project.

Where the value is for investors

Yield-hunting investors are finding value in well-located B+ buildings suitable for repositioning — sectional-title office conversions, medical suites and education users are absorbing stock that no longer suits corporate tenants. Prime Sandton offices trade at 7–8.5% yields; repositioning plays price wider, compensating for the work involved.

What landlords should do now

Audit your building against the new prerequisites: power, water, connectivity, certification. Price to effective rentals. And distribute vacancies through every active broker network rather than a single mandate holder — speed to tenant beats an extra rand per square metre in almost every net-present-value calculation.

Stone Capital leases and manages office assets across Sandton and greater Gauteng, with vacancy distribution through the BROCA broker network. View current office availability →