Construction Planning
Room sizes, margins, and compound layout — with an honest line between what's genuinely sourced Vastu guidance and what's ordinary construction practice or your city's own building law.
1. Room Dimension Guide
Common Indian residential construction ranges — this is construction practice, not classical Vastu doctrine. Vastu's genuine contribution to room shape is the ratio guidance in section 2, not an absolute size.
2. Room Ratio Guidance
A genuine, sourced Vastu preference — distinct from room size.
3. Setback & Open-Space Margin
Legal setback minimums are set by each state/city's municipal building byelaw (e.g. Tamil Nadu's TNCDBR/CMDA, Karnataka's BDA ring-zone system) and vary further by plot size, road width, building height, and zone classification. No figure is shipped here; the Construction Planning tool should present this as an explainer plus a 'check your local municipal byelaw / sanctioned building plan' call to action, not a number.
What Vastu does have is its own preference for distributing whatever margin your plot allows:
4. Compound Planning
Garden and septic tank zones — genuinely new guidance, not covered by any other tool. Gate, compound wall, and borewell/water tank each have their own dedicated checker; parking/garage is already covered by the Room Checker.
5. Plot Utilization (Open vs. Built)
FSI/FAR (Floor Space Index / Floor Area Ratio) is entirely municipal-law-governed and varies by city, zone, plot size, and building type/height. No classical or T2 Vastu source makes any FSI/FAR-style claim -- this is a modern civic-planning concept with no Vastu analogue. No figure is shipped here.
Not a duplicate of the plot-center-avoidance notes already recorded in staircase_rules_v1.json and borewell_rules_v1.json's relative_positioning.plot_center_avoidance -- this entry is the Plot Utilization topic's cross-reference to that same doctrine, documenting why Vastu has a genuine (if non-numeric) opinion on open-vs-built space distinct from the municipal FSI/FAR question. Five independently-worded sources converge: the Brahmasthan (plot center) should be kept vacant, ideally open to sky, free of construction -- no septic tank, underground water tank, boring, pillar, ladder, beam, or balcony should sit there, and a toilet/bathroom at the Brahmasthan is called out as a significant Vastu flaw. Multiple sources connect this doctrine directly to the traditional South Indian open/semi-open courtyard-house form. If a plot cannot spare open space at the exact center, sources recommend biasing whatever open space remains toward North/East -- directly consistent with, not a duplicate of, open_space_zone_preference above.
Construction planning — questions people ask
Does Vastu specify exact room sizes?
No — classical Vastu doesn't prescribe square footage. The room dimension ranges here reflect common Indian residential construction practice, not Vastu doctrine, and are labeled as such. Vastu's own genuine contribution is a length-to-breadth ratio preference, not an absolute size.
Can this tool tell me my legal setback requirement?
No, and we won't pretend to. Setback minimums are set by your city's municipal building byelaws and vary by plot size, road width, and zone classification. Always check your local sanctioned building plan or municipal office. What Vastu does have is its own, separate preference for distributing whatever open margin you have — more toward North/East, less toward South/West.
Does Vastu have an FSI or built-up-area rule?
No — FSI/FAR (Floor Space Index/Floor Area Ratio) is entirely municipal-law-governed with no classical Vastu analogue. Vastu's genuine, related idea is qualitative: keep the Brahmasthan (the plot's center) open and unbuilt, echoing the traditional open courtyard, rather than a specific numeric ratio.
More free tools
Check your plot's shape and slope, compound gate, and compound wall — the same sourced approach across the whole property.