Business and industry

Building plan approval or map sanction

Constructing a commercial building needs the local body's map sanction; building without it is unauthorised construction.

Last verified: 2026-09-26

ConditionalUrban local bodyLast verified: 26 Sept 2026

Start here

Get the building map sanctioned by the municipal body before starting any commercial construction.

Who is responsible

  • Executive Officer (Nagar Parishad / Nagar Panchayat)Executive head of a Nagar Parishad or Nagar Panchayat in Bihar, responsible for municipal services under the Bihar Municipal Act.
  • Urban Development and Housing Department, BiharPolicy and support for municipal sanitation, drainage and public street upkeep through urban local bodies.

Construction of a commercial building without a sanctioned map is unauthorised construction under the building byelaws, and an unapproved structure can be sealed or demolished. The sanction is applied for with ownership proof and the architect's drawings, and work may begin only after the sanction is issued.

The ladder to Patna

Set your district to see local office numbers

  1. You

    Your home, village, or ward — where the problem is.

  2. Start here

    Get the building map sanctioned by the municipal body before starting any commercial construction.

  3. Urban local body

    Executive Officer (Nagar Parishad / Nagar Panchayat)

    Executive head of a Nagar Parishad or Nagar Panchayat in Bihar, responsible for municipal services under the Bihar Municipal Act.

  4. State

    Urban Development and Housing Department, Bihar

    Policy and support for municipal sanitation, drainage and public street upkeep through urban local bodies.

    0612-2215550urbansec-bih@nic.in

  5. State

    Government of BiharPatna · state headquarters

    State government; departments deliver citizen services through ServicePlus and department portals.

If that does not work

  1. 1

    Apply with ownership proof and the architect's map

    Open official page
  2. 2

    Start work only after the sanction is issued

    Open official page
  3. 3

    If refused, correct the objections and reapply

    Open official page
Sources and evidence
  1. [1] The Bihar Municipal Act, 2007Building plan sanction and action against unauthorised construction are municipal functions.
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