“Should I build single or double storey?” is one of the most common questions builders in Ghana ask — and one of the least clearly answered anywhere online. Most guides either ignore the storey comparison entirely or throw out a vague percentage premium without explaining what is actually driving the cost difference and whether it makes sense for your specific situation.
This guide fixes that. We cover the real 2026 cost of both single and double storey builds in Ghana, the specific structural elements that make double storey more expensive, when going upstairs is genuinely the smarter financial decision, and when it is not.
Updated April 2026. All cost ranges reflect current Ghana construction market conditions. Exchange rate reference: $1 USD = approximately GHS 11 | £1 GBP = approximately GHS 14.97.
Single Storey vs Double Storey: What Are We Comparing?
Before we get into numbers, let us be precise about what “storey building” means in the Ghanaian construction context, because the term is used loosely.
Single storey (bungalow): All living spaces on one ground floor level. The most common residential build type in Ghana. Simpler to construct, faster to complete, and easier to phase. The roof sits directly on top of the ground floor walls.
Double storey: Ground floor plus one upper floor, connected by an internal staircase. In Ghana, the upper floor is typically built on a reinforced concrete suspended slab — not a timber floor as in some European traditions. This slab is one of the primary cost drivers. The roof sits on top of the upper floor walls.
Two-and-a-half storey (with rooms in roof): Increasingly popular in Accra, particularly in East Legon Hills and Ashongman — a double storey with habitable rooms created within the roof space. Structurally complex and significantly more expensive per square metre than a straightforward double storey.
For this guide, we are comparing standard single storey against standard double storey. The same bedroom count, the same finish level — just different vertical arrangements.
Why Is a Double Storey Building More Expensive in Ghana?
The cost premium for double storey in Ghana is real and significant. Understanding exactly what drives it helps you budget correctly and make a genuinely informed decision.
1. The Suspended Reinforced Concrete Slab
This is the single biggest additional cost in a double storey build. In Ghana’s climate and construction environment, the standard approach for the floor between ground and upper levels is a reinforced concrete suspended slab — typically 150–200mm thick, poured in place over temporary formwork.
This slab requires:
- Significantly more iron rods — both for the slab reinforcement mesh and for the additional column height required to support it
- More concrete — poured in a single operation that requires careful planning and sufficient labour
- Timber formwork to support the slab during pouring and curing — this formwork is expensive to fabricate and must remain in place for 21–28 days minimum before striking
- A structural engineer’s specific design for the slab — load calculations, bar spacing, and cover requirements that must be followed precisely
For a 3-bedroom double storey house, the suspended slab alone typically adds GHS 120,000–250,000 to the structural cost compared to a single storey equivalent.
2. Extended Columns and Additional Structural Steel
A double storey building has taller columns — from foundation to the top of the upper floor level rather than just ground floor height. Taller columns need more steel reinforcement, more concrete, and more formwork. The ring beam at upper floor level is an additional structural element that does not exist in a single storey build.
3. The Staircase
A reinforced concrete staircase in Ghana typically costs GHS 25,000–80,000 depending on width, number of risers, the complexity of the design, and whether it is straight, L-shaped, or curved. A feature staircase with steel balustrades and premium finishes can cost significantly more. This is a cost that simply does not exist in single storey construction.
4. Upper Floor Walls and Additional Roofline
A double storey building has more total wall area — both the upper floor external walls and any internal partition walls on the upper level. More block laying, more plastering, more painting. The roofline may also be more complex if the upper floor footprint differs from the ground floor.
5. Extended Services
Electrical cables and plumbing pipes run longer vertical distances in a double storey build. Bathroom drainage from the upper floor requires properly sized soil stacks running down through the building — these must be carefully coordinated during construction to avoid the common problem of pipes being buried in walls where they later cause damp or require costly access for repairs.
6. Scaffolding
External rendering, painting, and window installation on the upper floor requires scaffolding — an additional cost that does not apply to single storey work. Budget GHS 8,000–20,000 for scaffolding hire and erection depending on the perimeter of your building.
The Cost Premium: Single vs Double Storey in Ghana (2026)
The overall cost premium for double storey over single storey — for the same total floor area — is typically 25–40% in Ghana’s current construction market. This range reflects the variation in slab design, column heights, staircase specification, and finishing choices.
Put another way: if a single storey 4-bedroom house costs you GHS 1,100,000 to build to standard finish, an architecturally equivalent double storey 4-bedroom (same total floor area, same finish level) will typically cost GHS 1,375,000–1,540,000.
However — and this is the crucial nuance most guides miss — cost per square metre of usable floor area tells a different story.
If you are building double storey because your plot is small and you need to maximise floor area within a limited footprint, the cost per square metre of usable space in a double storey build can actually be lower than building two separate single storey structures to achieve the same total area. The slab, staircase, and structural premium are fixed costs — once you are paying them, adding more rooms on the upper floor becomes increasingly cost-efficient.
Full Cost Breakdown: Single vs Double Storey by Bedroom Size (2026)
3-Bedroom House: Single vs Double Storey
Configuration
Approx. Floor Area
Basic Finish (GHS)
Standard Finish (GHS)
Premium Finish (GHS)
Single storey (all ground floor)
110–140 sqm
400,000 – 600,000
600,000 – 900,000
900,000 – 1,500,000
Double storey (2+1 or 1+2 split)
110–140 sqm total
540,000 – 800,000
800,000 – 1,200,000
1,200,000 – 2,000,000
Double storey premium: approximately 30–35% over single storey equivalent.
4-Bedroom House: Single vs Double Storey
Configuration
Approx. Floor Area
Basic Finish (GHS)
Standard Finish (GHS)
Premium Finish (GHS)
Single storey
160–200 sqm
600,000 – 900,000
900,000 – 1,400,000
1,400,000 – 2,500,000
Double storey (2+2 split)
160–200 sqm total
800,000 – 1,200,000
1,200,000 – 1,900,000
1,900,000 – 3,400,000
Double storey premium: approximately 30–38% over single storey equivalent.
5-Bedroom House: Single vs Double Storey
Configuration
Approx. Floor Area
Basic Finish (GHS)
Standard Finish (GHS)
Premium Finish (GHS)
Single storey
220–300 sqm
900,000 – 1,300,000
1,300,000 – 2,200,000
2,200,000 – 4,000,000
Double storey (3+2 or 2+3 split)
220–300 sqm total
1,200,000 – 1,800,000
1,800,000 – 3,000,000
3,000,000 – 5,500,000
Double storey premium: approximately 30–40% over single storey equivalent.
The Specific Additional Costs of Going Double Storey
If you are planning a double storey build, these are the line items that will not appear in a single storey budget estimate. Budget for all of them explicitly.
Additional cost item
Estimated range (GHS)
Notes
Suspended reinforced concrete slab
120,000 – 280,000
Varies by span, slab thickness, and steel specification
Extended columns and upper ring beam
40,000 – 90,000
Depends on column count and upper floor wall height
Staircase (reinforced concrete)
25,000 – 80,000
Straight staircase at lower end; curved or feature stair at upper end
Staircase balustrade (steel or glass)
15,000 – 60,000
Simple steel at lower end; frameless glass at upper end
Upper floor additional walling
30,000 – 70,000
Masonry labour and materials for upper external and internal walls
Scaffolding hire and erection
8,000 – 20,000
Required for upper floor external rendering, windows, and painting
Extended electrical and plumbing services
12,000 – 30,000
Longer cable and pipe runs, soil stacks, additional circuits
Upper floor balcony or terrace (if included)
30,000 – 100,000+
Waterproofing of slab, balustrade, drainage — often underbudgeted
Total additional cost (double storey)
280,000 – 730,000
For a standard 3–4 bedroom double storey in Accra
When Does a Double Storey Building Make Financial Sense in Ghana?
Double storey is not automatically the right choice. Here are the specific situations where it makes genuine sense — and where it does not.
Build double storey when:
Your plot is small. A standard plot in Accra is approximately 70 x 100 feet (about 650 sqm). After setbacks, compound walls, and a driveway, your buildable footprint may be 300–400 sqm or less. If you want 5 or more bedrooms on a standard plot with space for a garden and vehicle parking, going double storey is frequently the only viable option. The additional structural cost is justified by the value of the extra land you are effectively creating.
Land in your area is expensive. In East Legon, Spintex, or Airport Residential, where land costs GHS 1,500,000–5,000,000+ per plot, maximising the usable floor area on an expensive plot is sound financial logic. A double storey build effectively doubles your floor area on the same land cost — the structural premium is small relative to the land value it leverages.
You want to separate public and private zones clearly. The classic double storey arrangement puts the social spaces — living room, dining, kitchen, guest toilet, and guest bedroom — on the ground floor, with all family bedrooms, bathrooms, and the master suite on the upper floor. This separation is both practical for daily living and preferred by many Ghanaian families who want clear boundaries between the spaces they share with visitors and the spaces they keep private.
You want to build in phases vertically. A double storey design can be built in two genuine phases: complete the ground floor first, move in, live in it fully, then add the upper floor when funds allow. The ground floor structure must be designed from the outset to carry the upper floor load — but if your architect and structural engineer build this into the design, phased vertical construction is a legitimate and practical approach.
You want to generate rental income. A double storey house can be designed so that the ground floor and upper floor function as two separate self-contained units — each with its own entrance, kitchen, bathrooms, and bedrooms. You live in one unit and rent the other. In Accra’s tight rental market, a well-located 2-bedroom rental unit can generate GHS 3,000–8,000 per month, which contributes directly to recovering your build cost.
Single storey makes more sense when:
Your plot is large enough. If you have a plot of 700 sqm or more and want a 3–4 bedroom family home, a spacious single storey layout will give you larger individual rooms, better natural cross-ventilation, and lower construction cost — without the structural complexity of a suspended slab.
You are building for elderly residents or family members with mobility issues. Stairs are a practical barrier for elderly parents, grandparents, or anyone with mobility limitations. A single storey build is fully accessible from the outset.
Your budget is tight. The 25–40% structural premium for double storey is real money. If stretching to double storey means compromising on finish quality throughout the building, a well-finished single storey house is a better outcome than a poorly finished double storey.
You are building in an area with soft or waterlogged soil. Certain areas of Accra — particularly low-lying parts of Tema, East Legon extension areas, and parts of Kasoa — have soil conditions that make double storey construction significantly more expensive because the foundation must be engineered to carry the additional load safely. Always get a soil investigation done before committing to a double storey design on an unfamiliar site.
How the Cost Breakdown Shifts Between Single and Double Storey
Ghana’s construction industry data reveals an interesting cost proportion shift between single and double storey buildings that most builders are unaware of.
In a single storey build, the roof typically represents around 14% of total construction cost — it is the largest single element after the superstructure. In a double storey build, the roof drops to approximately 9% of total construction cost — because the suspended slab between floors absorbs concrete and steel costs that would otherwise go into roofing, and the roof covers a smaller footprint relative to the total floor area.
What this means in practice: in a double storey build, you pay significantly more for structure (slab, extended columns, staircase) but proportionally less for roofing. The structural premium is real, but it is partially offset by roofing savings and the value of the additional habitable floor area you gain.
Design Decisions That Affect Your Double Storey Cost
Not all double storey buildings cost the same to build. These specific design choices have the largest impact on your budget.
Slab span length: The wider the span between supporting walls or columns, the thicker and more heavily reinforced your slab needs to be. Designing your upper floor rooms so that no slab panel spans more than 5–6 metres without an intermediate beam or wall significantly reduces slab steel and concrete quantities. Discuss this with your structural engineer — small plan adjustments can produce meaningful cost savings.
Staircase type: A straight single-flight staircase is the most cost-effective option. An L-shaped or quarter-turn staircase adds complexity and cost. A curved or spiral staircase can cost 3–5 times more than a straight staircase and is rarely justified for a family home. If you want architectural drama, there are far more cost-effective ways to achieve it.
Balcony inclusion: Balconies on the upper floor are popular in Ghana but are frequently underbudgeted. A balcony requires: waterproofing of the slab surface (critical — a leaking balcony slab causes serious structural damage), a properly designed drainage outlet, and a secure balustrade system. Budget explicitly for these elements — do not assume they are included in the base slab cost.
Floor plan efficiency: A compact, efficient floor plan on both floors reduces wall area, slab area, and roofing area simultaneously. Every unnecessary corridor, oversized room, or irregular shape adds cost. Ask your architect to assess the efficiency ratio of your design — the percentage of total floor area that is actually habitable versus circulation and wall thickness. A well-designed double storey house should achieve 85%+ usable floor area.
Upper floor bedroom count: Once you are paying the fixed cost of the suspended slab and staircase, each additional bedroom on the upper floor becomes progressively cheaper to add. A 3+1 double storey (3 bedrooms ground, 1 bedroom upper) has the worst cost efficiency. A 2+3 or 2+4 split uses the fixed structural cost much more effectively.
Common Double Storey Mistakes in Ghana
Designing for double storey but building the foundation for single storey. This is the most expensive mistake in Ghana construction. If you plan to add an upper floor later, your foundation, ground floor columns, and ground floor walls must be designed from day one to carry the additional load. Retrofitting a column or reinforcing a foundation after the fact is expensive, disruptive, and sometimes impossible without major demolition.
Pouring the slab before services are roughed in. All plumbing waste pipes for upper floor bathrooms, and all electrical conduits that need to run through the slab, must be positioned and held in place before the concrete is poured. Cutting through a concrete slab afterwards to add missed pipes or conduits is costly and weakens the structure. Coordinate your services contractor with your structural team before every pour.
Using inadequate timber formwork for the slab pour. The slab formwork must be capable of supporting the full wet weight of the concrete — typically 3.5–4.5 tonnes per square metre for a 150mm slab. Inadequate formwork collapses during pouring, with catastrophic and sometimes fatal consequences. Never allow cost-cutting on formwork materials or the number of props used. This is a non-negotiable structural safety requirement.
Striking formwork too early. The slab concrete must reach sufficient strength before the formwork is removed — a minimum of 21 days for normal conditions, longer if weather has been cold or wet. Stripping formwork before this point risks slab deflection or failure. The instruction to strike formwork must come from your structural engineer, not from a contractor trying to recover the timber for another project.
Get an Estimate for Your Storey Building
The figures in this guide are 2026 market ranges. Your actual cost will depend on your specific design, location, soil conditions, material choices, and contractor.
- Use our free Residential Cost Calculator to estimate your build cost by bedroom size, region, and finish level
- See our full 2026 bedroom cost guide for single storey cost ranges across all sizes
- Read our artisans guide to understand what trades you need and their 2026 labour rates
- Book a consultation to discuss your specific double storey project and get a realistic budget before you commit
All cost figures are 2026 market estimates based on current Ghana construction industry data. Actual costs vary significantly by design, soil conditions, location, material choices, structural specification, and contractor. Always engage a qualified architect, structural engineer, and quantity surveyor before committing to a double storey build. Do not rely on general cost estimates as the basis for a construction contract.