Single-Storey Steel Home Models: Floor Plans, Sizes and Turnkey Prices
Single-storey steel homes in the ifHaus range, with floor areas, layouts and turnkey starting prices. Why two models at the same square footage carry different plans, who single-level living suits, and the four questions to ask before accepting a quote.
What a single-storey steel home is
A single-storey steel home is a permanent house on one level whose load-bearing structure is light gauge steel — cold-formed galvanized profiles sized by structural calculation, assembled under factory conditions and erected on a prepared permanent foundation.
Single-level layouts have a structural advantage worth knowing: without a second floor there is no intermediate deck and no stairwell opening, so the load path is simpler and the usable area per square metre is higher. Nothing is lost to a staircase.
The trade-off is footprint. The same floor area on one level needs roughly twice the ground coverage of a two-storey layout, which matters when local zoning limits site coverage.
The ifHaus single-storey range
Floor areas are given in both metric and imperial. Starting prices are turnkey on our production and delivery basis in Türkiye and cover the building itself — foundation, site services, permitting and local assembly depend on the lot and are calculated separately.
| Model | Floor area | Layout | Bath / WC | Turnkey from |
|---|---|---|---|---|
| Villa İz | 48 m² · 517 sq ft | 1+1, open kitchen | 1 | $20,000 |
| Villa Koru | 73 m² · 786 sq ft | 2+1, separate kitchen | 2 | $33,000 |
| Villa Eksen | 73 m² · 786 sq ft | 3+1, separate kitchen | 2 | $33,000 |
Layout notation is the European convention: 2+1 means two bedrooms plus a living room.
Same square footage, different plan: Koru versus Eksen
Villa Koru and Villa Eksen are both 73 m² and both start at the same price, which is exactly why the comparison is instructive: the difference is entirely in how the area is divided.
Koru puts the area into two bedrooms and a larger living space. Eksen fits three bedrooms into the same envelope, which means a tighter living area and smaller rooms. Neither is better — they answer different questions. A couple who works from home and a family with two children will not choose the same one.
The lesson generalises: square footage alone tells you very little. Two houses of identical area can live completely differently depending on how many walls are in them.
Who single-level living suits
Single-storey layouts suit anyone for whom stairs are a factor now or might be later — older occupants, families with very young children, and anyone planning to age in place. Accessibility is far simpler to design on one level.
They also suit sites where ground coverage is not scarce: rural lots, larger plots, holiday properties. If the lot is generous, spreading out costs nothing and buys a simpler building.
Two-storey layouts make more sense where site coverage is limited or where separating living and sleeping zones vertically is worth more than the staircase costs in area.
Four questions to ask before accepting a quote
What exactly does the price cover — shell, weathertight, or turnkey? This single question explains most of the price spread you will see in the market.
Which items are billed separately because they depend on the lot? Foundation, site services, permitting and assembly are the usual ones, and they are not small.
What is the galvanized coating class and the profile thickness? These set the service life and load capacity of the frame, and a supplier who cannot state them has not engineered your project.
What design snow, wind and seismic values were used? These come from the site, not from a catalogue. A quote built on generic values is not a quote for your lot.
FAQ
Questions on your mind
What sizes do single-storey steel home models come in?
The ifHaus single-storey range runs from 48 m² (517 sq ft) as a 1+1 up to 73 m² (786 sq ft) as either a 2+1 or a 3+1. Larger areas are generally laid out over two storeys, though single-level custom projects are possible where the lot allows.
How much does a single-storey steel home cost?
Turnkey starting prices run from $20,000 for the 48 m² Villa İz to $33,000 for the 73 m² Villa Koru and Villa Eksen, on our production and delivery basis in Türkiye. Foundation, site services, permitting and local assembly are separate and depend on the lot.
Is single-storey or two-storey cheaper?
For the same floor area, single-storey usually needs a larger foundation and more roof, while two-storey needs an intermediate deck and a stairwell. Which lands cheaper depends on the area and the site; the more decisive factor is often how much ground coverage local zoning allows.
Which structural system does "steel home" refer to?
For single-family housing it normally means light gauge steel: cold-formed galvanized profiles engineered per project. It should not be confused with heavy hot-rolled steel structures or with container conversions, which are different systems with different limits.
How long does a single-storey steel home take to build?
Factory production plus on-site assembly is typically measured in weeks. The realistic schedule driver is everything around it — permitting, foundation work and site services — which is jurisdiction-dependent and should be scoped before any date is promised.
Can a single-storey steel home be extended later?
Extension is possible in principle, but it is far easier if it is planned at the design stage so the structure and services are laid out for it. Retrofitting an extension onto a frame that was not designed for one means structural work that could have been avoided.
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