Construction of new buildings started

Districts Residential buildings Administrative buildings Other buildings
Number Number of dwellings Gross building area - sq. m Number Gross building area - sq. m Number Gross building area - sq. m
Total 1 282 5 899 726 896 25 39 738 624 524 359
Blagoevgrad 77 239 28 779 .. .. 30 9 416
Burgas 68 476 64 172 .. .. 16 209 304
Varna 130 1 641 143 657 12 9 440 20 5 101
Veliko Tarnovo 30 95 14 805 - - 18 3 897
Vidin - - - - - 6 3 893
Vratsa .. .. .. .. .. 12 5 586
Gabrovo 14 15 2 680 - - 10 9 634
Dobrich 26 31 4 462 - - 34 11 058
Kardzhali 27 284 33 553 - - 13 6 201
Kyustendil 7 7 1 306 - - 11 4 296
Lovech 19 19 2 267 - - 14 3 263
Montana .. .. .. - - 8 2 918
Pazardzhik 83 181 23 454 - - 38 7 771
Pernik 60 88 22 818 .. .. .. ..
Pleven 8 23 2 812 - - 15 6 244
Plovdiv 176 459 63 643 5 2 033 89 88 156
Razgrad 6 10 6 334 .. .. 20 6 278
Ruse 18 30 4 700 .. .. 25 6 670
Silistra 14 11 3 682 - - 31 7 860
Sliven 25 55 7 182 - - 17 12 008
Smolyan 7 8 2 639 - - 13 2 252
Sofia 137 170 26 872 - - 35 55 071
Sofia (stolitsa) 211 1 659 212 459 - - 18 16 116
Stara Zagora 65 225 24 583 .. .. 71 23 937
Targovishte 8 8 1 384 - - .. ..
Haskovo 29 40 6 765 - - 26 11 528
Shumen 20 95 17 501 - - 12 942
Yambol 9 22 3 347 .. .. 15 3 670

Note: ".." Confidential data
Contact organisation

National Statistical Institute

Contact organisation unit

"Short-term Business Statistics and Statistics of Transport" Department

Contact name

Emilia Altanova

Contact person function

Chief expert

Contact mail address

2, P. Volov Str.; 1038 Sofia, Bulgaria

Contact email address

[email protected]

Contact phone number

+359 2 9857 175

Contact fax number
Metadata update
Metadata last certified21 November 2018
Metadata last posted21 November 2018
Metadata last update26 May 2020
Statistical presentation
Data description

Data for started construction of new buildings provide information about building construction started by type of buildings - residential buildings and their dwellings, administrative buildings and other buildings and their gross building area. Statistical information about started of building construction is a prognostic short-term indicator for the future development on the construction business in the country.

Classification system

Classification of Types of Construction (CC)

Sector coverage

The statistical survey covers all municipal authorities.

Statistical concepts and definitions

Indicators are harmonized according to the requirements of Regulation 1165/98 on EC concerning short-term statistics.

The numbers of started new buildings are classified according to the Classification of Types of Construction (CC).

Building is a roofed construction site which can be used separately, and it is built for permanent purposes. Buildings are subdivided into residential and non-residential buildings.

Residential buildings are buildings in which at least half of the useful floor area is used for permanent residential habitation.

The residential buildings are subdivided into:

  • one-dwelling buildings - houses, villas, bungalows for living by one household;
  • two-and more dwelling buildings - buildings such as flat blocks, apartment houses, detached houses, semi-detached or terraced houses with two and more dwellings and they have a common entrance;
  • residences for communities - residences and service residences for the elderly, students, children and other social groups, e.g. retirement homes, works' hostels, hostels for the homeless, etc.(exclude-hotels).

Dwelling - is one or more rooms for living and service floor area in a building with solid structure for own use. The dwelling must have an exit to a generally accessible part (stairs, yard or straight on the street).

Non-residential buildings are buildings which are mainly used or intended for use for non-residential purpose.

The non-residential buildings are subdivided into:

  • office buildings - buildings used as places for business and administrative purpose, e.g. banks, post offices, government department offices, conference and congress centers, law courts, parliament buildings;
  • other non-residential buildings - all other buildings not mentioned in the previous definition used for industrial, wholesale and retail trade, traffic and communication, public entertainment, agriculture, education purposes, hospitals, hotels and others.

Gross building area - a sum of all floors areas in external dimensions (including functional areas and covered thoroughfares for ancillary use).

Statistical unit

Municipal authorities

Statistical population

The survey is exhaustive and statistical population covers all municipal authorities, which are issued documents for started construction of new buildings.

Reference area

National level: Data are aggregate and published total and by districts.

Time coverage

From 2010 to the latest quarter of the reference year.

Base period

Not applicable.

Unit of measure

Number, square meter.

Reference period


Institutional mandate
Legal acts and other agreements

 National Legal basis: The Law on Statistics(Article 20) states that all persons that manage or present legal persons, are obligated to provide the National Statistical Institute and the Bodies of Statistics with reliable data when filling-in forms and questionnaires on surveys included in the National Statistical  Programme, for  which mandatory participation is provided.

The survey is included into the National Statistical Programme and it is compulsory for enterprises which are included in the sample of survey. The Law on Statistics includes provisions relating to fines, which can be imposed for refusal, non-response and delay. They are laid down in specific Chapter 9 “Administrative and liability provisions” in Article 52.


Methodology of indicators is consistent with:

· COUNCIL REGULATION (EC) No 1165/98 of 19 May 1998 concerning short-term statistics;

· REGULATION (EC) No 1158/2005 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL amending Council Regulation (EC) No 1165/98 concerning short-term statistics;

· COMMISSION REGULATION (EC) No 1503/2006 implementing and amending Council Regulation (EC) No 1165/98 concerning short-term statistics as regards definitions of variables, list of variables and frequency of data compilation.

Data sharing

Not applicable.

Confidentiality - policy

· Law on Statistics - Saved of statistical confidentiality is in accordance with the privacy of individual data specified in the Statistics Act, which are in accordance with EU legislation. In Chapter VI "Data Confidentiality and secrecy" are regulated confidentiality of individual statistical data, use them only for statistical purposes and obligations of the statistical authorities to ensure protection and preventions of individual data. In Chapter IX "Administrative Penalty Provisions" shows provisions non-compliance with the requirements;

· Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

Confidentiality - data treatment

Article 25 of the Law of Statistics defines the criteria by which can not be distributed or published statistical information. Statistical information which aggregates data about less than three statistical units or about a population in which the relative share of the value of a surveyed parameter of a single unit exceeds 85 percent of the value of such parameter for all units in the population.

Confidential data, accordance with the Law of Statistics not publish. In order not to identify individual data using the method of suppression or aggregation of information disclosed.

Release policy
Release calendar

The date for publication of statistical information is given in the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute, which is available on NSI website. The data of started construction of new buildings by type and their gross building area are published 30 -31 days after the reference quarter.

Release calendar access

The calendar is available on the NSI website:

User access

The data are published on the NSI website, section Business statistics - Short-term Business Statistics - Other quareterly data in accordance with the Law on Statistics and the European Statistics Code of Practice respecting the professional independence and aimed at objectivity, transparency and equal treatment of all consumers.

Frequency of dissemination


Accessibility and clarity
News release

Data and press release about issued permits and started construction of new buildings publish every quarter - 30 -31 days after the reference quarter.

On-line database

The data are available to all users of the NSI website under the heading Short-term Business Statistics - Other qyarterly data: The data for preceding years are available in the Information System for online requests for statistical information - INFOSTAT -

Micro-data access

On request, according to the rules on data protection


Not applicable.

Documentation on methodology

· Eurostat Methodology of short-term business statistics. Interpretation and guidelines:

· Methodology "Construction of new buildings started":

Quality documentation

Not applicable.

Quality management
Quality assurance

The legal framework which regulates the production of data from Short-term business statistics states that statistical data compiled within the EU system must be of satisfactory quality and produced data are comparable between Member States. Verification of data is done through the process of conducting a statistical survey - from respondents, from experts in the regional statistical offices and from national experts in NSI. Identified inaccuracies and errors are removed timely and provide comparable data of good quality.

Quality assessment

The quality of the short-term indicators is measured by each Member State in accordance with the general criteria. Calculation of the indicators is carried out in accordance with EU regulations on short-term business statistics.

User needs

State governing bodies, associations, businesses, media and other users.

User satisfaction

No information.


Provide statistical data on started construction of new buildings on the required level of detail.

Accuracy and reliability
Overall accuracy

There is a maximum accuracy and reliability of the data started construction of new buildings. Common errors are errors in the measurement data, the respondent misunderstanding what information is required or incomplete performance.

Most measurement errors are detected and corrected by arithmetic and logical controls embedded in Information System "Short-term business statistics" (On-line information system for collection, verification and processing of data from short-term business statistics). The system performs mandatory and planned control and warning in case there are errors, it displays a warning dialog inconsistencies found. The system does not allow the completion of the report until all outstanding correct mandatory controls.

Sampling error

The survey is exhaustive.

Non-sampling error

Actions for non-responders include: informing and sending reminders, when no-responding company may follows a phone call and / or direct contact to collect the data. The responding rate is average approximately 100%.

Timeliness and punctuality

Information about starting construction of new buildings is published 30- 31 days after the end of reference quarter.


All data rows, tables and press releases are prepared, and submitted for publication within the deadlines specified in the calendar for publication of data.

Coherence and comparability
Comparability - geographical

Data started construction of new buildings are representative for the whole country, by districts and by municipalities.

Comparability - over time

Available time series of data started construction of new buildings - from 2010.

Coherence - cross domain

Data started construction of new buildings are compared from the variables of issued building permits from previous quarter.

Coherence - internal

Observation is exhaustive, the data are final, and are in accordance with EU regulations on Short-term business statistics.

Cost and burden

No information on the relationship between cost of production of statistics data and user satisfaction. The purpose to reduce response burden is created on-line information system "Short-term business statistics" (IS STS).

Data revision
Data revision - policy

Not applicable.

Data revision - practice

Not applicable.

Statistical processing
Source data

The information is aggregated from the data in Questionnaire for issued and started construction of new buildings. Source of data is construction documents issued from technical services of the municipal authorities.

Frequency of data collection


Data collection

For the convenience of respondents and getting better and timely information is created on-line information system Short-term business statistics (IS STS) input data for started construction for new buildings. The system controls are set to ensure the accuracy of the information. Possibility remains that the respondent submits monthly report and a paper in the relevant regional statistical office (RSO). Delay on the part of businesses IS STS send reminders. Experts from RSOs phone calls to provide timely information or clarification of the data.

Data validation

Validation data starts from the filling of reports by respondents. Control of the data can be accessed from the regional statistical offices and from the National Statistical Institute. An information system "Short-term business statistics" significantly contributes to the validation of the data submitted by set arithmetic and logical controls. Subsequent analysis of the experts, a phone call for additional clarification of data and elimination inconsistencies, minimize errors in the raw data and ensure accuracy of outputs at national level.

Data compilation

Data started construction of new buildings are made by municipal authorities on the paper and send to RSOs or online through an information system "Short-term business statistics". After validating the data by RSOs and after the deadline for entering, experts of NSI made a final control, and aggregate output for total of country and by districts.


Not applicable.

Metadata Structure Definition in SDMX 2.1: ESMS_MSD+BNSI+2.0+SDMX.2.1.xml
Metadata Structure Definition in SDMX 2.0: ESMS_MSD+BNSI+2.0+SDMX.2.0.xml