Manufacturers of tiny houses, capsules and folding houses

It sells two very different houses, and the difference is in the wall. Its cheap range, the CCR, is a campsite cabin: solid timber walls with no insulation and single glazing, fine for summer or seasonal letting. The Carpato series is another matter, with walls insulated with rock wool, double glazing and the wiring done, and to use it as a home the brand itself asks for an architect's project before you order. More than a factory, SORT-7 is a showroom and sales point: both its ranges come from the Casas Carbonell factory.

With Avrame the house arrives in pieces: it ships from Estonia the precut A-frame, the boards and, depending on the kit, windows, roof and partitions, and you or a local carpenter put it up with its plans. The small ones work as a retreat or rural accommodation; the large ones are family homes. Its price doesn't compare with that of a furnished house: it excludes VAT, transport, insulation and services, and going by what the brand itself says its finished houses cost, the kit is a small part of the total. It only pays off if you do the building work yourself.

It makes the large mobile home, designed for living in: two or three bedrooms, two bathrooms, furniture, appliances and heat-pump air conditioning, all from the factory, and it is placed in a day with no foundation. According to its FAQ, its price already includes VAT, and transport and assembly are paid separately. With a chassis and wheels it is movable property, but where it can stay is up to your town hall; for a main home on urban land it offers a version adapted to the Spanish Building Code (Código Técnico), at an extra cost that isn't in the figure.

It doesn't manufacture: it sells other brands' mobile homes, French ones such as IRM, Louisiane or Trigano and British ones such as Swift, mostly second-hand and some new. It's the quick way to get an equipped mobile home on a campsite or a leisure plot, because the house already exists. What you pay for is the unit as it stands: transport, charged per kilometre, and placement come on top, and the listing doesn't say whether the price includes VAT. With a used house, ask for the year of manufacture and its condition, which its listings don't give.

Its capsules leave the factory as one finished piece: steel structure, aluminium façade, porcelain tiles, the interior finish of the cabinetmaking workshop the brand grew out of, and ducted climate control that provides cooling, heating and fresh air. It is expensive even for what it includes: the Family, its one- or two-bedroom model, costs 2.9 times per square metre the median of houses with assembly charged separately (1,270 €/m² across 68 houses from 11 manufacturers). It isn't a mobile home, even though one of its models is called Nomad: it sits on a foundation and is placed by crane. It works as an upmarket holiday let; for adding cheap square metres, no.

It sells and installs small houses of steel and sandwich panel, from a single open space with no bathroom, for a studio or office, up to a two-bedroom house with a porch, and its price includes the installation, which it does in hours or a couple of days from the appointment. It only works in Tenerife, and its prices don't say whether they include IGIC, the Canary Islands tax, so they don't compare as they stand with a mainland price with VAT.

What sets it apart is a shape, the vault, which in the wahbi wraps the whole house and in the mohma covers a loft over a very small floor. There is no slab: it rests on supports driven into the ground that can be removed, so the house goes and the plot stays as it was, and the brand calls it a mobile home even though it has no wheels or chassis. It insulates with the same thick panel across the range. Per square metre, the wahbi standard comes to 1,270 €/m², and the median for small houses with assembly charged separately is 1,269 €/m². The basic finish comes without a kitchen: what you pay for is the design.

Slovak maker of autonomous micro homes: its egg-shaped capsule produces its energy with solar panels and a small wind turbine and is designed for off-grid living or glamping, and its BOX line is more conventional and roomier. The capsule can be towed, but being movable doesn't exempt it from the permit to leave it on a plot. Its prices are before VAT and by finish level, and you organise the transport.

Its trade is the custom timber house, and it is here for its M-Cabin line of mini houses, built in Lithuania by another company and distributed, founded and assembled by Ekoetxea. They are timber modules that arrive finished and are joined on the plot, and the M28 (in Spanish), the one it details most, has mineral wool in the walls, floor and roof and triple glazing: house insulation, not summer-cabin insulation. The kitchen, bathroom fittings and heating are chosen separately. It only works in the north.

A manufacturer from Bétera (Valencia) of mobile and modular houses on a chassis, with finishes of your choice and the option of building them to measure. Part of what it makes is also sold by SORT-7 under its own name, so the same house can be ordered from both. Its housing range has walls insulated with rock wool and low-emissivity double glazing, and the chassis format avoids heavy building work on the plot.