What is the ideal window size for a north-east-facing study room in Delhi?

Vastu and composite climate together suggest a window approximately 5 feet wide with a sill height of 2.5 feet on a north-east face for a study room in Delhi. Type: Sliding 2T. Glazing: clear.

Is North-East an auspicious direction for a study room per Vastu?

Vastu's traditional ideal for a study room is W, NW, not North-East. The room remains habitable with simple window-design choices that neutralise the directional bias — see the recommendations on this page.

Why does Delhi's composite climate need clear glazing?

Delhi sits in the Composite climate zone (Hot summers, cold winters, monsoon — the climate where classical Vastu was calibrated.). For composite climates, clear glazing balances solar gain, heat retention, and visibility — Operable windows matter more than fixed ones. The same opening that bleeds heat in January welcomes it back in July.

Window Guide · Delhi

North-East-facing Study Room

North-East is not the traditional Vastu placement for a study room, but the room remains usable. Window design + simple remedies neutralise the directional bias.

CompositeDelhiIshan · Jal (Water)Vastu: avoid

The recommendation

Width

~152 cm

Sill Height

2.5'

low sill — measured from finished floor

Type

Sliding 2T

Glazing

clear

Single 6 mm

Overhang / chajja

1.5'

Minimum projection above the window

WWR

15–20%

Total window-to-wall ratio for the room

These figures are advisory — drawn from IS 3792 (Composite zone) and Vastu Shastra teaching tradition. An architect should adapt them to your plot's exact bearing, plinth height and facade design.

Why this direction for a study room?

A study window should put light over the desk shoulder (not into the eyes), support video-call ambient light, and crucially provide the option to look up and rest the eyes on a distant view — no view = eye-strain.

Ishanईशान

Light, clarity, and morning prana. The most sacred quadrant in Vastu.

Vastu's ideal placement for a study room is W, NW. North-East is outside the traditional band, though with simple remedies the room works well.

Why Delhi's climate matters

Delhi is in the Composite climate zone (Cwa, Cfa per the Köppen scale; Composite per NBC 2016). Summer temperatures: 35-48°C, winters: 2-15°C. Rainfall: 500-1200 mm/year. Humidity: 20-90% (seasonal).

Operable windows matter more than fixed ones. The same opening that bleeds heat in January welcomes it back in July.

For a north-east face in this climate, the recommendation is a sliding 2t window with clear glazing and a sill at 2.5' — calibrated for hot summers, cold winters, and seasonal monsoon.

Common mistakes

Desk facing the window — glare on the screen all afternoon
Desk back-to-window — strong backlight on video calls
No natural light at all — psychological fatigue
Treating North-East placement as a hard error — it's not. The room remains usable; a small Vastu remedy (heavy furniture on the W wall, mirror placement away from the bed) handles the directional refinement.