What This Guide Answers
If you are commissioning an office, a bank, a hotel, an institutional building, or a mixed-use development in Ghana, the first question your board or your funder asks is “what will it cost?” This guide gives you the honest, buyer-side answer — what is real, what is unreliable, and what figure you should actually budget and tender against.
The short version: a commercial building’s cost comes from a Bill of Quantities (BoQ), not from a per-square-metre rate. Everything below explains why, and how to read a cost so you are not budgeting against a number that moves the day site starts.
Why There Is No Honest Per-Square-Metre Rate
It is tempting to want a single ₵/m² figure you can multiply by your floor area. For a commercial building, that figure does not exist in any reliable form.
The per-square-metre estimates published online diverge three to five times over — anywhere from roughly ₵1,200/m² to ₵6,500+/m² — and none of them is measured against a real survey of your design. They are content-marketing estimates, each generating its own range. Treat that entire spread as unreliable: a number to be suspicious of, not budgeted against.
There are good reasons the spread is so wide:
- A commercial building (structure, MEP services, façade, fit-out) is not a house, and the two cannot share a rate.
- Structure, mechanical/electrical/plumbing, façade, fit-out, and finish level each swing the figure widely.
- Rates go stale quickly and vary meaningfully by city — Accra, Kumasi, and Takoradi are not the same.
Two buildings of identical floor area can differ several-fold once these are specified. So the only honest cost is the one measured for your design.
The Bill of Quantities — The Figure You Budget Against
A BoQ is not a guess scaled up. It is measured, priced, and totalled:
- Measure the design — a quantity surveyor takes off quantities from your drawings: every element of structure, envelope, services, and finish, measured to professional standards.
- Apply real rates — each measured item is priced with a current material-plus-labour-plus-plant rate, using published material prices and current subcontract rates.
- Build the totals — measured quantity times rate gives each line; the lines total to trades, the trades total to the build, with preliminaries, overheads, and contingency stated openly.
- Deliver a tender-ready document — a real, line-by-line cost you and your funders can scrutinise, and the basis a contractor builds and is paid against.
This is what the quantity-surveying profession in Ghana (GhIS) does: cost is produced per project, not read off a rate card. It is the figure that holds up to a funder, a board, or a tender evaluation panel.
What Actually Drives Commercial Cost
| Driver | Why it swings the cost |
|---|---|
| Structure | Spans, storeys, and loadings set the frame, foundations, and rebar — a large share of any commercial build |
| MEP services | HVAC, power, data, fire, lifts, and plumbing can rival the structure on a serviced building |
| Façade | A glazed curtain wall is a different order of cost from blockwork and render |
| Fit-out | Bank, hotel, office, and shell-and-core fit-outs differ enormously by specification |
| Finish level | Standard, mid, and prestige finishes move the same floor area across a wide range |
Material Prices You Can Actually Quote
Material unit prices are genuinely published and corroborated — and even these are one part of a cost, not the cost:
| Material | Published price (indicative) |
|---|---|
| Cement, 50kg bag | ₵85–130 a bag |
| Iron / steel rods, per ton | ₵6,300–11,000 a ton |
| Concrete blocks, each | ₵4–10 each |
Figures to be suspicious of. Inflated material figures circulate online — for example cement quoted at ₵185–240 a bag or rods at ₵19,000–25,500 a ton. These run well above every published price list and are erroneous. Do not budget against them. A BoQ uses real, current rates — not the worst number a search returns.
How to Read a Cost Without Being Misled
- Ask for a measured BoQ, not a per-m² estimate. If a contractor leads with a ₵/m² number, ask what survey it is measured against.
- Expect preliminaries, overheads, and contingency to be stated openly, not hidden in a round figure.
- Check the material rates against the published ranges above — a BoQ built on inflated material prices is a red flag.
- A real BoQ is the document your funder finances and your contractor is paid against. One number on one page is not.
Frequently Asked Questions
How much does a commercial building cost per square metre in Ghana? There is no canonical rate. Published estimates diverge three to five times over (roughly ₵1,200–6,500+/m²) and none is measured against a real survey. The reliable cost is a Bill of Quantities measured by a quantity surveyor for your specific design.
Why can’t you just give me a rate? Because structure, MEP, façade, fit-out, and finish level each swing the figure widely, and rates go stale and vary by city. That is why GhIS prices per project via a BoQ, not a rate card.
Which material prices are real? Cement roughly ₵85–130 a bag, iron/steel rods roughly ₵6,300–11,000 a ton, blocks roughly ₵4–10 each. Treat cement at ₵185–240 or rods at ₵19,000–25,500 as erroneous — they run well above every published list.
Will you prepare a BoQ for my project? Yes — a tender-ready BoQ with registered quantity-surveying (GhIS) input, built to L.I. 1630 and the Ghana Building Code (GS 1207:2018), so you and your funders see a real, line-by-line cost.
Take the Next Step
Construct GH has prepared measured BoQs for commercial and institutional buyers across Ghana since 1977. Request a capability statement: +233 23 063 0028.
- Commercial Construction in Ghana — end-to-end commercial build
- Commercial Construction Cost & BoQ — how a real budget is built
- Tender & Procurement Readiness — winning and delivering tenders
- Construction Project Management — on programme, on budget
- Construction Company in Accra — a classified, credentialed firm since 1977