Innehållskarta

Description of house

Small house "Kodu 4 x 66" is a house with 4 apartments. Floor space of each apartment is 66.0 m2 plus an insulated and with heating possibility storage/technical room 4.8 m2 in the vestibule. Apartments has spacious terraces 22.0 m2 (apartments on the 1st floor) and balconies 9.3 m2 (apartments on the 2nd floor). Each apartment consists of a foyer, large living room, one bedroom, kitchen and bathroom with toilet, sauna and a storage/technical room. The layout of apartment suits perfectly to a family with two people.

Technical parameters of the house

Building footprint
247 m²
Number of apartments 4
Apartment (net) floor area
66.0 m², including insulated and heating possibility storage/technical room 4,8 m²
Total (net) floor area of 4 apartments 264.0 m²
Standard ceiling height in living areas
2.6 m in living rooms
2.3 m in foyer and in "wet" rooms
Impermeability of living rooms
n50 ≤ 1.0 1/h
Impact sound insulation between floors L'w < 53dB
Airborne sound insulation of wall partitions between apartments
R'w > 55dB

Estimated energy consumption of apartment

Estimated energy consumption of an apartment was calculated by following parameters:

Rated average temperature in living rooms 21° C
Heated area of the apartment 61.2 m²
Rated air exchange rate of ventilation per occupant 30 m³/h
Rated average number of occupants 2
Rated average consumption of hot water per occupant 45 liters/day (50°C)
Expected domestic electric consumption (lighting, appliances) ca 200 kWh/month
Expected common consumption of electricity per apartment (lighting in the vestibule and outdoor lighting) ca 200 kWh/year

Calculated energy consumption by one apartment may be as follows, depending on different structures and equipment in a house:

ANNUAL calculated energy consumptionOption 1 
Standard structure, windows and technical systems
Option 2*
Advanced structure,  windows  and technical systems
Calculated net energy consumption for heating  (rated only structures, ventilation and windows) ~ 62 kWh/m2 ~ 47 kWh/m2
~ 3 800 kWh/apartment ~ 2 900 kWh/apartment
Calculated final energy consumption for heating (in addition to the structures, windows and ventilation system, efficiency of heating system is  also rated) ~ 61 kWh/m2 ~ 27 kWh/m2
~ 3 800 kWh/apartment ~ 1 650 kWh/apartment
Calculated final energy consumption for producing the hot water ~ 1 900 kWh/apartment ~ 1 900 kWh/apartment
Estimated domestic energy consumption ~ 2 400 kWh/apartment ~ 2 400 kWh/apartment
Estimated consumption of electricity for common needs ~ 200 kWh/apartment ~ 200 kWh/apartment
TOTAL ENERGY CONSUMPTION:~ 8 300 kWh/apartment~ 6 150 kWh/apartment
*Note: Option 2 is meaning as follows:

- insulation of ceiling on the top floor or insulation of roof-ceiling - 400 mm, U-value 0.095 W/m2Km2K
- insulation of external walls - 270 mm, U-value 0.155 W/m2K
- insulation of the floor on the 1st floor - 413 mm, U-value 0.093 W/m2K
- triple-pane float-glass glazing and argon gas fill, two panes are spectrally selective, windows U-value 1.17 W/m2K 
- an air-source heat pump is added into the heating system

Depending on the selection of the house structure, windows and technical systems, it is possible to achieve energy consumption values differing from the values in the table above. More efficient results than Option 2 are also possible, but the pay-off time of required extra investments may be relatively long.

NB! Values in the table above are estimated. Actual energy consumption may be somewhat different because the average number of occupants per apartment and their consumption habits (average temperature in living spaces, consumption of hot water, domestic electric consumption, etc.) may be different from rated parameters.

House layouts, finishing and equipments

1st floor
2nd floor

Central technical room of the house
Cross-section

Sample planning  of the plot 
Illustrations of kitchen furniture: Alternative 1, Alternative 2
Illustrations of bathroom furniture: Basic, Alternative 1, Alternative 2, Alternative 3, Alternative 4, Alternative 5

Description of finishing and furnishing of the small houses KODU - BASIC

Description of finishing and furnishing of small houses KODU - EXTRA SELECTION

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