Bengaluru UDD proposes simplified building setback rules for smaller plots

The Urban Development Department in Bengaluru has proposed new setback rules to simplify construction norms for small residential plots, aiming for clarity and uniformity across developments.

In a move to simplify and standardize building regulations, the Urban Development Department (UDD) in Bengaluru has proposed amendments to the Zoning Regulations under the Revised Master Plan (RMP) 2015, changing the setback rules for smaller residential plots. The draft notification was issued on November 11, inviting the public to submit their objections or suggestions within 30 days.

A building setback refers to the minimum open space that must be left around a building, ensuring proper ventilation, light, and access. The new proposal aims to make the rules easier to follow for owners and builders of smaller plots, removing confusion caused by percentage-based setback calculations.

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Under the previous system, setbacks were calculated as a percentage of a plot’s width and depth, 2% in the front, 8% at the rear, and 8% on each side. This often led to inconsistent measurements and approval delays for small plot developments.

The new draft introduces fixed setback distances for clarity:

•    For plots up to 60 sqm (approximately 20x30 ft): 0.7 metres in the front and 0.6 metres on all other sides.
•    For plots between 60 and 150 sqm (around 30x40 ft to 30x50 ft): 0.9 metres in the front, and 0.7 metres at the rear and sides.
•    Plots larger than 150 sqm will continue to follow existing setback norms.

Officials stated that the proposed system will bring consistency across small plot developments and make building approvals faster. The maximum permissible building height for plots up to 150 sqm is set at 12 metres, excluding the stilt floor.

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Additionally, the draft allows open staircases within setbacks for plots up to 750 sqm, provided the space is left unpaved to enable rainwater absorption.

The notification also permits the installation of mechanical or hydraulic parking systems, including car lifts and computerized parking platforms, in basements or upper floors, improving parking efficiency in urban areas.

However, the UDD has made it clear that basements are not permitted in flood-prone areas, a precaution to avoid structural damage and waterlogging during heavy rains.