Are building regulations followed in Bengaluru? A case study in Vijayanagar

One of the teams in a recent Bengaluru design jam explored the conformity of buildings to existing rules in Vijayanagar's residential areas.

The extension of 3rd Cross road in Vijayanagar is like any emerging neighbourhood in Bengaluru, with houses packed like boxes on either side. This led us to explore the role of regulations in shaping our buildings, streets and city at large. We presented our findings at the ‘Bengaluru Design Jam’, organised by organised by OpenCity, and held on July 6th. The participants collaborated to analyse and interpret different aspects of BBMP’s construction bye-laws. 

The changes and growth of cities are often guided by economic activities. But the development of cities needs to be managed and regulated to ensure liveability. This is where master plans and zoning regulations come in, much along the lines of what has been practised in developed countries.

What is a master plan?

A master plan is a comprehensive mid to long-term plan that outlines how a city will grow spatially, and the various alternative uses for different sections of the land. Zoning regulations specify what can be built, how, and the permitted uses of built up structures in identified ‘zones’ or parcels of land.

How a city responds to these regulations can differ. In a rapidly growing city like Bengaluru, it is important to ask if such regulations are conducive to and compatible with the growth of the city. Or, should there be a separate mechanism to adapt to the needs of the growing city?


Read more: Non-existent roads make it to Bengaluru master plan


Study area

At the datajam, our team tried to find answers to the above questions by examining the built-up fabric in the south-western part of Bengaluru. We chose the neighbourhood of Vijayanagar, which is less than 6 kms from the city centre. The study area was about 500 metres from Chord Road, one of the important arterial roads of the city.  

Methodology

We looked at typical streets with residential land use, which have plots of sizes 600 sqft (20’X30”), 1,200sqft (30’X40’), 2,400 sqft (60’X40’). One street adjoining the neighbourhood, which had commercial land use, was also considered. These streets identified were then examined through Google Street view images.  

The parameters we were looking at were land use, setbacks, site coverage, total built-up area, building height.The objective was to look at whether these parameters conformed to the zoning regulations under the city Masterplan 2015.   

Typology of streets with site dimension 20'x30', 30'x40', 60'x40' and commercial
Location of street types for study in Vijayanagar neighbourhood, Bengaluru (Image: Google maps)

Read more: Revised Master Plan-2031: Revisions only – neither mastery nor planning?


Observation and analysis

The study analyses the built-up forms through the lens of the identified parameters for all the street types mentioned above. The observations made are then interpreted through the analysis matrix below.

2 commercial buildings
Buildings in Vijayanagar, Bengaluru. Pic: Google Street view

Building height and Floor Area Ratio (FAR) regulation in streets with commercial land use are the same as in the adjoining residential areas, which restricts potential development. Also, there are no specific regulations for car parking on commercial land use streets, which is important to consider.

Multi storied houses sharing a common wall
Absence of setback deprives opportunity for light and ventilation. Pic: Google Street view.
Bylaw violation buildings without setbacks
No setback, maximum coverage observed in smaller plot sizes. Pic: Google Street view

Analysis matrix

Plot Size20×30 (6.5m*9m)30×40 (9m*12m)40×60 (12m*18m)Commercial Street
Street width7m9m12m9m
Permissible Land UseResidentialResidentialResidentialCommercial
Condition observedConformConformDo not conformDo not conform
Permissible SetbackLeft 0m, All other sides 1m.1m on all sides1m on Rear, 1.5m Sides1m on Rear, 1.5m Sides
Condition observedDo not conformDo not conformDo not conformDo not conform
Permissible Coverage75% (31.5 sqm)75% (81 sqm)75% (162 sqm)75% 
Permissible Floor Area Ratio1.75 1.75 1.75 1.75
Approx. permissible area102.375 sqm 187 sqm 378 sqm 378 sqm 
Condition observedDo not conformDo not conformDo not conformDo not conform
Building Height15m15m15m15m
Condition observedDo not conformDo not conformDo not conformDo not conform

The above analysis shows that there is predominant violation of regulations with respect to building floor area, setbacks, building height especially with respect to smaller plots. In larger plots, commercial use is observed even in residential plots.

The reduction in setbacks has a direct impact on the quality of light during the day and ventilation in these units. This affects the quality of life of residents living in these residential units. Hence, not conforming to the regulations can be detrimental to the well-being of the population.

Graphical representation of impact of not conforming to the regulations.
Graphical representation of impact of not conforming to the regulations. Image: Team 4

Further, there was violation in built-up areas in newer buildings in large plots (>60ftx40ft).

Commercial land use has the same FAR as the adjoining residential land use. The parking spaces have been converted into office/shops to maximise floor space, and this, in turn, results in increasing street parking. The street character, determined by the design of its buildings, is deduced from the nature of buildings that adjoin them.

Rampant parking on streets and unplanned public utilities/street furniture, such as seaters, benches, waste receptacles etc., impact the street quality and make them less pedestrian friendly. This further increases motorised traffic, thus increasing the vehicular density, and resulting in higher pollution levels.

Hence, it is largely observed that the regulations are not being followed in the construction of buildings on individual plots, where the homeowners maximise the use of space available for building. This is driven by demand for floor space and the high land value in the area. It is economics that is driving the city‘s form, rather than regulations.

Conclusion

Deeper deliberation is required to formulate relevant regulations to manage the growth of the city. Lack of enforcement is a primary reason for people being lax about following the regulations.

Most regulations are laid out as blanket rules, which may not be relevant for the diverse conditions of the city. Regulations shall be specific to zones and the type of land use. For example, the FAR of 1.75 and coverage of 75% for a wide range of plot sizes conforming to the street width in different parts of the city may not be the best way to regulate growth. The contextual conditions may be different for different streets and neighbourhoods. This evidently shows lack of micro-level planning and dynamic response to city growth. Micro-level planning / Local Area plans need to be prepared for the city after consultations with local stakeholders.

Adapting regulations dynamically in response to economics would also promote sustainable city growth.

Addressing violations through relevant support regulations and effective enforcement is crucial in regulating city growth; otherwise the regulations merely remain on paper, contributing very little to the development of the city.

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