Based on Setout’s estimate model, building a flat / apartment in Johannesburg costs roughly R 9 800–R 22 000 per m², with a typical rate around R 13 500 per m². Here’s how that breaks down, and how we calculated it.
A worked example
A 75 m² flat / apartment at the typical R 13 500/m² works out to about R 1 012 500 for construction. Of that, labour is roughly 27% (~R 273 375); materials and plant make up the rest.
Building in Johannesburg
Johannesburg sits in Gauteng, one of South Africa's highest-cost provinces on published industry estimates — a function of metro demand, concentrated labour, and material logistics. The defining local cost driver is dolomitic ground: parts of greater Gauteng are underlain by dolomite that dissolves to form sinkholes and highly variable bedrock. Engineers describe the resulting premium as a "dolomite tax" — it forces SANS 1936 stability investigations before development and can mean raft foundations, ground improvement, and heavier buried-services detailing. High water tables in places add waterproofing and basement cost. On a Johannesburg build, ground conditions are the line item most likely to surprise a budget.
What drives the cost of a flat / apartment
Flats and apartments carry the cost of going vertical. Multi-storey structure, lifts, fire escapes and fire-rated construction, and more demanding services (water pressure, drainage stacks, electrical distribution) all lift the rate above a single house. Basement or structured parking is one of the biggest line items and is often priced separately per bay. Set against this, units are compact and repetitive, which helps — but the structural and compliance overhead means apartments rarely reach the low rates of simple residential work.
What the low, typical and high rates buy
Low: R 9 800/m² in Johannesburg, about R 735 000 for 75 m²
A walk-up block of three or four storeys with no lift, a simple concrete frame or load-bearing masonry, compact units, standard finishes and open surface parking.
Typical: R 13 500/m² in Johannesburg, about R 1 012 500 for 75 m²
A mid-rise block with lifts, a concrete frame, fire-rated stair cores, better finishes in units and common areas, and some covered or structured parking.
High: R 22 000/m² in Johannesburg, about R 1 650 000 for 75 m²
A prestige block: high-rise structure, basement parking over several levels, high-specification units with premium kitchens and bathrooms, concierge and amenity floors, and heavier building services including backup power and water.
Budget by floor area in Johannesburg
Construction cost only, at Johannesburg’s low, typical and high rates for a flat / apartment. Multiply your own floor area by the rate per m² for a figure in between.
| Floor area | Low | Typical | High |
|---|---|---|---|
| 50 m² | R 490 000 | R 675 000 | R 1 100 000 |
| 75 m² | R 735 000 | R 1 012 500 | R 1 650 000 |
| 110 m² | R 1 078 000 | R 1 485 000 | R 2 420 000 |
How Johannesburg compares with other cities
At a typical R 13 500/m², Johannesburg is 22% above the median of the twelve cities in this model for a flat / apartment. 2 cities are dearer and 8 are cheaper. The range runs from R 8 235/m² in Rustenburg to R 15 255/m² in Cape Town. The model sets rates by province, so cities in the same province carry the same figure; the local factors described above are what separate them on a real project.
- Cape TownR 15 255/m²
- DurbanR 14 985/m²
- JohannesburgR 13 500/m²
- PretoriaR 13 500/m²
- BloemfonteinR 11 475/m²
- East LondonR 11 070/m²
- GqeberhaR 11 070/m²
- MthathaR 11 070/m²
- KimberleyR 10 665/m²
- MbombelaR 9 315/m²
- PolokwaneR 8 640/m²
- RustenburgR 8 235/m²
Plans and approvals in Johannesburg
Building plans for a flat / apartment in Johannesburg go to the City of Johannesburg Metropolitan Municipality for approval under the National Building Regulations and Building Standards Act 103 of 1977, with SANS 10400 as the technical standard. Work may not start before the plans are approved. The municipality also checks the proposal against its land use scheme; if the design needs a rezoning, a consent use or a building-line relaxation, add that process to the programme before you add it to the budget. A new home must also be enrolled with the NHBRC before construction begins, and the builder must be registered with the NHBRC.
Costs on top of the building rate
The rates above stop at the building. For a flat / apartment, the items that most often get left out of an early budget are:
- Basement or structured parking, often priced per bay as a separate item
- Fire engineering, sprinklers and the fire-plan approval
- Bulk-services contributions, which scale with the number of units
- NHBRC enrolment of each unit and sectional-title registration
- Lifts maintenance contracts and the first years of operating cost
VAT at 15% applies to the building contract and to professional fees from VAT-registered consultants.
How we calculated this
AECOM 2025/26 base rate for Flat / apartment (Gauteng-anchored, excl. VAT, professional fees and site works) adjusted by the Gauteng provincial factor (×1), derived from ooba's provincial build-cost table with Gauteng set to 1.0. Figures are planning-stage estimates, not a quote or a survey. Labour assumed at 27% of total (typical 25–30%). Excludes land, professional fees, VAT, and municipal contributions.
Source: Base rates from the AECOM Africa Property & Construction Cost Guide 2025/26 (excl. VAT, professional fees and site works); provincial factors derived from ooba's 2025/26 provincial build-cost table. Last updated 2026-07-16.
Questions
- How much does it cost to build a flat / apartment in Johannesburg?
- Based on Setout's estimate model, roughly R 9 800–R 22 000 per m² (typical R 13 500). For a 75 m² flat / apartment, that's around R 1 012 500 for construction — excluding land, professional fees, VAT and municipal costs.
- Why do flats cost more per m² than houses?
- Going vertical adds cost: multi-storey structure, lifts, fire-rated construction and escapes, and heavier services (drainage stacks, water pressure, electrical distribution). Structured or basement parking is a major separate cost. Repetition helps, but the compliance and structural overhead keeps the rate up.
- Why is building in Johannesburg priced this way?
- Johannesburg is in Gauteng. Our model applies a provincial cost factor to a national base rate to reflect local labour rates, material transport, and market demand. AECOM 2025/26 base rate for Flat / apartment (Gauteng-anchored, excl. VAT, professional fees and site works) adjusted by the Gauteng provincial factor (×1), derived from ooba's provincial build-cost table with Gauteng set to 1.0. Figures are planning-stage estimates, not a quote or a survey. Labour assumed at 27% of total (typical 25–30%). Excludes land, professional fees, VAT, and municipal contributions.
- What is not included in this estimate?
- The rate covers building work and materials only. It excludes the land, professional fees (architect, engineer, quantity surveyor), municipal connection and contribution charges, VAT, and any abnormal site or foundation costs. For a tender-ready figure, price the actual Bill of Quantities.
Compiled by Setout. These are planning-stage estimates, not a quote. Price the Bill of Quantities for a tender-ready figure with the BoQ Pricer.
Reviewed by Aidan Koetaan MBA PMP, quantity surveyor and construction project manager. Figures revised 2026-07-16.
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