Highly energy-efficient houses
Updated on 11 October 2026 · Data from public sources, each with its link · How we work
Prefab houses with efficient systems (aerothermal heating, solar) and a good energy certificate.
Models of highly energy-efficient houses
382 results
Render 3DDelivered assembledMaestro Casas
Serenity L-shaped modular prefab home
Delivers to mainland Spain
Delivered assembledGrupo Eurocasa
Gran Villa modular prefab home
Delivers throughout Spain
Render 3DDelivered assembledCasas Cube
Cube 150 single-storey modular prefab house
Delivers throughout Spain
Render 3DDelivered assembledResan Modular
Z3 Z-shaped prefab house, 3 bedrooms, 108 m²
Delivered assembledGrupo Eurocasa
MOD flat-roof modular prefab home
Delivers throughout Spain
Render 3DDelivered assembledCasas Cube
Cube 175 4-bedroom modular prefab house
Delivers throughout Spain
Render 3DDelivered assembledMaestro Casas
Kamira modular prefab home with gable roof
Delivers to mainland Spain
Render 3DDelivered assembledKuBox Modular
90 m² modular prefab house
Delivers to 32 provinces
Render 3DDelivered assembledCasas Cube
Cube 100 single-storey modular prefab house
Delivers throughout Spain
Render 3DCustom-builtNorges Hus
148.2 prefab house with a 17.6-metre frontage
Delivers throughout Spain
Delivered assembledEcocapsule
BOX Classic compact off-grid house, 25 m²
Delivers throughout Spain
Render 3DCustom-builtDanwood
Perfect 101 prefab timber house, 101 m²
Render 3DDelivered assembledCasas Cube
Cube 125 two-storey modular prefab house
Delivers throughout Spain
Delivered assembledKodasema
KODA Loft designer modular home, 28 m²
Render 3DDelivered assembledMoodul
Elva L-shaped modular prefab home with garage
Delivers to mainland Spain
Render 3DCustom-builtLumar
Alfa 148 prefab timber house with 3 bedrooms
Render 3DDelivered assembledMaestro Casas
Kamira flat-roof modular prefab home
Delivers to mainland Spain
Delivered assembledKodasema
KODA Loft Extended modular home, 49 m²
Render 3DCustom-builtecokit
Tranquility single-storey timber prefab home
Render 3DCustom-builtBien-Zenker
Smart 145 prefab timber house
Delivered assembledEcocapsule
Ecocapsule self-sufficient ovoid micro-house
Delivers throughout Spain
Render 3DDelivered assembledZero Housing
ZH 160 two-storey modular prefab home
Delivers to 4 provinces
Render 3DCustom-builtNorges Hus
Skagen (Barn House) prefab timber house
Delivers throughout Spain
Render 3DDelivered assembledResan Modular
B3 prefab house, 3 bedrooms, 106 m²
What does it mean?
An efficient house makes the most of energy: good insulation and a system with aerothermal heating, solar panels or underfloor heating that reduces consumption. This usually shows in a good energy rating (class A or higher).
Prices of highly energy-efficient houses
Turnkey from €55,000
median price, €262,000
Without assembly from €69,578
median price, €94,000
Shell only from €46,400
median price, €64,000
Kit from €38,545
What is usually included in the price (turnkey) and what is paid separately: Turnkey houses, with what each price covers →
What to sort out beforehand
Frequently asked questions
What sizes do highly energy-efficient houses come in?
From 8 m² to 807 m², and the median size is 123 m² (373 models from 59 manufacturers).
Which manufacturers make highly energy-efficient houses?
Among others, Norges Hus, Arquima, Moodul, The Corten Company, Baufritz and Lumar.
Is it legal to install a prefab house on rural land?
A fixed prefab home is considered a building and, as a general rule, can only be installed on urban land; on rural land there are very limited exceptions. And a mobile home does not escape this by being on wheels: the Supreme Court treats mobile homes as prefab houses and not as trailers, so, if it is to be lived in, it needs a licence like any other home. Always check with the town council before buying.