The value of sold construction and assembly works performed using own resources (without subcontractors) for outside clients. This value is expressed in actual sales prices - taking into account all discounts, rebates and deductions - excluding value added tax (VAT). Construction and assembly works include activity consisting in construction of buildings and structures, starting from site preparation, through various scope earthworks, foundation works (zero state), constructing load bearing elements, building partitions, construction and covering of roofs (raw state), ending with assembly, installation and completion work.

The scope of construction and assembly works includes general construction and specialized works in the field of building constructions, which involve the erection, reconstruction, addition, alteration, renovation, demolition or assembly of a construction, including assembly of prefabricated elements and structures of a permanent or temporary nature. In particular, these are:

1) construction works related to the construction of buildings, which include the construction, addition, reconstruction, alteration, renovation of residential and non-residential buildings, as well as the assembly of buildings made of prefabricated structures of a permanent or temporary nature;

2) works related to the construction of civil engineering objects, which include the construction, addition, reconstruction, alteration, renovation of civil engineering objects;

3) specialized construction works related to the construction of buildings and civil engineering objects, carried out by contractors with specialized skills and special equipment; they include:

1. demolition or wrecking of constructions,
2. site preparation for construction (i.e. clearing of building sites, earth moving: excavation, landfill, levelling and grading of construction sites, trench digging, rock removal, blasting, etc., site preparation for mining (overburden removal and other development and preparation of mineral properties and sites, except oil and gas sites), building site drainage, drainage of agricultural or forestry land),
3. test drilling and boring and core sampling for construction, geophysical, geological or similar purposes,
4. electrical, plumbing (water, gas and sewage systems), heat and air-conditioning installation,
5. installation of: passenger and freight elevators, escalators (including repair and maintenance), automated and revolving doors, lightning conductors, vacuum cleaning systems, thermal, sound or vibration insulation,
6. plastering,
7. joinery installation,i.e. installation of doors (except automated and revolving), windows, window and door frames, of wood or other materials; installation of fitted furniture: kitchens, built-in cupboards, wardrobes, shop fittings and the like; interior completion such as ceilings and movable partitions,
8. floor and wall covering,
9. painting and glazing,
10. other building completion and finishing (e.g. cleaning of new buildings after construction),
11. erection of roofs and roof covering, gutters and downspouts installation,
12. other specialised construction activities (np. construction of foundations, pile driving, damp proofing and water proofing works, de-humidification of buildings, shaft sinking, erection and bending of steel elements, scaffolds and work platform erecting and dismantling (excluding renting), bricklaying and stone setting, erection of chimneys and industrial ovens, work with specialist access requirements necessitating climbing skills and the use of related equipment (e.g. working at height on tall structures), subsurface work, construction of outdoor swimming pools, steam cleaning, sand blasting and similar activities for building exteriors).

• Regulation (EC) No 1158/2005 of the European Parliament and of the Council of 6 July 2005 amending Council Regulation (EC) No 1165/98 concerning short-term statistics
  Place of publication: (Dz. Urz. UE L 191 z 22.07.2005, str. 1-15)

• Seasonally adjusted index of sale of construction and assembly production
• Sale of construction works with an investment character
• Sale of construction works with a restoration character and other works