Conventional advice on a plot like this is to push windows to whatever gap exists between neighbours and accept the compromise. That produces a house permanently on the defensive — blinds down, rooms dim, the best light wasted on a corridor.
The courtyard inverts the problem. Rather than a decorative feature bolted onto a plan, it does structural work: it brings daylight deep into the section, drives cross-ventilation through the Bengaluru summer, and gives every principal room something quiet to look at.
Deep thresholds around the court do the social work. They let a grandparent sit within sight of children playing without being inside the noise, and they let the house feel occupied even when only two people are home.
The street elevation gives almost nothing away. That is the point — everything this house has, it keeps for the people inside it.