DIN 277

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Logo of the German Institute for Standardization DIN 277
Area Building calculation
title Ground areas and volumes in construction
Latest edition DIN 277-1: 2016-01
ISO {{{ISO}}}

The DIN standard DIN 277 is used to determine the area and volume of buildings or parts of buildings in building construction . The area determination according to this standard is u. a. Basis for the calculation of fees for the building permit, which is why there is an area calculation according to DIN 277 for almost every building.

DIN 277-1 (date of issue: 2016-01) defines the rules for calculating the area and volume of buildings. These floor space and room contents are primarily used to determine the building costs in accordance with DIN 276 , but are also used in part to determine rental and purchase prices. They are also used to compare the usability and profitability of different buildings. In addition, the division of the usable areas into groups of different types of use is described and examples are given for the allocation of rooms and areas to the individual types of use.

For the rental space Calculation of commercial premises, the Society of Property Research Association has a policy developed lettable MFG Guidelines on the calculation of the rental space for commercial space that uses the surface stock (BGF) to DIN 277-1 and determines which of these areas of rental space and which are not.

Another way of calculating the area, especially the living space for renting rooms ( rental apartments ) in privately financed housing construction, is the calculation according to the ordinance for calculating the living space - also known as the living space ordinance (WoFlV).

Base areas and volumes include decisive for determining the cost in building construction and in the comparison of structures.

Area and volume according to DIN 277: 2016: Terms

Division of the base area according to DIN 277: 2016
term Abbr. Explanation
Gross floor area GFA Net room area + construction base area
Net room area NRF Usable area + technical area + traffic area
Construction footprint KGF Sum of the rising components of all plan levels of a building (walls, columns, pillars, ...). The base areas of chimneys, non-accessible shafts, door openings, niches and slots are also part of the KGF.
Usable area NUF Total of the floor area with uses (that part of the NRF that serves the use of the building due to its intended purpose)
Technical area TF That part of the NRF that is used for the technical systems for supply and disposal of the building. If the accommodation of technical systems for the supply of other structures is intended (e.g. boiler house), the required floor space is NUF.
traffic area VF That part of the NRF that provides access to the rooms, traffic within the structure and also for leaving in an emergency. Movement areas within rooms are not included.
Construction space KRI Difference between gross and net volume
Plot area GF Area that is formed by the property boundaries and that is shown in the real estate cadastre and in the land register.
Built up area BF Part of the property area (GF) that is built over or covered by a structure above the surface of the terrain or that is underbuilt below the surface of the terrain. If necessary, this sub-area can be shown separately as BF 1 (overbuilt) and BF 2 (underbuilt).
Undeveloped area UF The undeveloped area (UF) only includes the partial areas of the property area (GF) that are not built over, covered or underbuilt by buildings.

Comparison of DIN 277 editions 2005 and 2016

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Compared to DIN 277-1: 2005-02 and DIN 277-2: 2005-02, the following changes have been made in accordance with the foreword of the standard:

  1. DIN 277-1 and DIN 277-2 have been shortened and combined into one part;
  2. the title of the standard was changed in order to be able to add further parts of the standard for other areas of construction in the future;
  3. the scope of the standard has been reformulated and delimited from other areas in construction and facility management;
  4. the regulations of the standard were adapted to DIN EN 15221-6; among other things, the previous terms "technical functional area" were renamed to "technical area" and "net floor area" to "net room area" and the previous term "usable area" to "usable area";
  5. the standard was editorially revised and restructured;
  6. the structure of the building's base has been simplified and reduced to two levels;
  7. the definition of quantities and reference units for cost groups according to DIN 276 was dispensed with so that these issues can be regulated in DIN 276 itself;
  8. Terms and rules have been defined for the area of ​​the property;
  9. the regulation of areas with different room enclosures has been simplified.
  10. The following should also be mentioned: a) The term net floor area is used in both DIN 277 (2005) and DIN 277-1 (2016), but with a different area definition. b) The criterion "accessible" is newly introduced for the allocation of the floor space of the elevator and installation shafts.

Comparison of DIN 277 editions 1987 and 2005

Division of the base area according to DIN 277: 2005

DIN 277: 2005 has introduced some innovations compared to the previous versions, which also include the above. Definitions concern, so u. a .:

  1. the functional area (FF) is now called the technical functional area (TF)
  2. Recording of the construction volume (KRI), which includes the volume of suspended ceilings, raised floors, multi-layer facades, installation ducts and shafts with a clear cross-section of up to 1 m²
  3. the separate determination of areas up to / over 1.50 m in height is not applicable
  4. Minimum dimensions have been defined for installation ducts and shafts (with regard to the net area or construction area)
  5. the term "usage group" (summary of individual areas and rooms with similar uses) was introduced
  6. the distinction between main usable areas (HNF) and secondary usable areas (NNF) is no longer applicable. To this end, a 7th category of usable space called "Other Uses" was introduced. This now includes the areas that were previously listed under the term secondary usable areas.

According to DIN 277: 2005, the usable areas were divided into seven usable areas (NF for short) and classified according to their functions:

  1. Living and staying
  2. Office work
  3. Production, manual and machine work, experiments
  4. Store, distribute and sell
  5. Education, teaching and culture
  6. Healing and nurturing
  7. Other uses

See also

Web links