An extended corner is a plot or house that juts out beyond its main rectangle at one of the four diagonal corners; a cut corner is one where that corner is missing. Popular manuals grade them corner by corner, praising a north-east extension and disliking a south-west one, but this site found no such rule in the classical verses it read. The sensible course is to keep the main building rectangular and to treat boundary and structural questions as work for a surveyor or architect.

Seeing the shape clearly

Picture the smallest rectangle that encloses your plot, lined up with its main sides. If the plot fills that rectangle except at one corner, the corner is cut. If the plot fills a clear main rectangle and then pushes further out at a corner, that corner is extended. The same language is used for buildings: a room or wing that projects beyond the main block is an extension, and an L-shaped house is, in these terms, a rectangle with one corner cut away.

Three details decide whether the label even applies.

  • Size. Manuals disagree about how large a bulge or notch must be before it counts, and this site has no classical figure to offer.
  • Plot or building. A plot can be perfectly rectangular while the house on it is L-shaped, or the other way round. Practitioners differ on which matters more.
  • Splays. Many municipalities require the corner of a plot at a road junction to be cut at an angle so drivers can see round it. That cut is a legal requirement, not a design choice.

To know which corner is which, you need the compass bearings of the sides; reading your house’s facing explains the method.

What follows is a typical version of the rules found in modern manuals. They differ from one another in detail, and none of the entries was traced to the verses read for this site.

CornerExtended, as popularly taughtCut, as popularly taughtClassical status
North-eastWidely praisedWidely disliked, often called the most serious cutNot found in the verses read
South-eastUsually disfavouredMixed; some manuals treat it lightlyNot found in the verses read
South-westUsually called unhelpfulUsually dislikedNot found in the verses read
North-westMixed; manuals disagreeMixed; manuals disagreeNot found in the verses read

The reasoning modern writers give leans on the idea of the north-east as the light, open, sacred quarter and the south-west as the heavy, closed one. That in turn draws on the five-element scheme, which the guide to the eight directions describes as a later teaching device rather than a quotation from the building texts.

The honest tension

The popular rules are confident. The verses read for this site are silent on them, and in one place they point another way.

  • Regular ground is preferred. Brihat Samhita 53.115 cautions against irregular ground in both translations. Strictly, an extension is as much an irregularity as a cut, so a literal reading of that verse favours no extension at all, north-east included. That is this site’s reading.
  • The one north-east remark concerns height. The same verse, in Iyer’s translation, attaches a caution to a raised north-east corner; Sastri reads the passage as applying to the east or north generally. Either way it is about how high the ground stands, not how far it reaches, and it lends no support to praising a north-east extension.
  • Level ground is best. Verse 53.116 puts a flat site first, with a small rise permitted on the east or north side, and 53.117 warns against raising the south or the west. Modern writers sometimes connect this with corners; the verses themselves speak of the level of the site.
  • The north-east has a ritual role. The first foundation stone is laid there and the work proceeds clockwise (53.112). That is a ceremony, not a rule about shape.

No corner rule could be traced in Acharya’s summary of the Manasara, the other text read for this site, either. The rules may come from texts this site has not read, or from later manuals. We say so rather than guess.

Living with a cut corner

On an empty plot, draw the house as a full rectangle inside the complete part of the land, much as the guide to square and rectangular plots describes, and let the cut area become part of the garden edge, or simply nothing at all. The house is then regular, whatever the boundary does. The page on irregular plots sets out the same method for other awkward outlines.

In an existing L-shaped house, nothing structural is called for. Keep the inside angle of the L tidy, light and open, use each room for what suits it, and leave the rest alone. Objects sold to “complete” a missing corner, such as mirrors, metal strips, pyramids and yantras, are modern additions absent from the texts read for this site, and none is recommended here. The guide to remedies without demolition explains the free alternatives.

Building out, or cutting back

If you are thinking of adding a room that would create an extension, the deciding questions are permission, setbacks and structure, and they belong to an architect or engineer. If a consultant proposes demolishing an extension, or adding one, purely to correct a corner, remember that no verse read here asks for building work, that it is costly, and that structural changes carry real risk. The page on renovating a home covers how to approach work of this kind.

Boundaries are a legal matter too. Buying a strip of land to “fill” a corner, or giving one up, involves title, survey and registration, and needs a lawyer and a licensed surveyor.

A short checklist

  1. Get a survey drawing of the plot and the house, with true north marked.
  2. Identify the main rectangle and measure any projection or notch.
  3. Note whether it affects the plot, the building or both.
  4. Check whether a corner cut is a municipal splay.
  5. Decide on a use for the odd corner: garden, path, parking, storage.
  6. Speak to an architect or engineer before any structural change.

What cannot be changed and what helps

A legal splay, the plot’s outline and the bones of an existing building are fixed. What helps is a regular main block, a clear and light centre, a well-kept entrance and a good use for any odd corner. A cut or extended corner is a feature of the shape, not a judgement on the people who live there.

Frequently asked questions

↳ What is an extended corner in Vastu?

A plot or building that projects beyond its main rectangle at one of the diagonal corners. Popular manuals grade extensions by corner. This site did not find those grades in the classical verses it read.

↳ Is a north-east extension good?

Popular manuals widely praise it. No classical verse read for this site says so, and the Brihat Samhita's general preference is for regular ground, which strictly favours no extension. Treat the praise as a modern convention.

↳ What should I do about a cut south-west corner?

Nothing drastic. Keep the main house rectangular, use the cut area as garden or open space, and avoid structural work done only for Vastu. The rule against it is commonly taught, not traced to the verses read here.

↳ How can I correct a missing corner without demolition?

There is nothing that must be corrected. Keep the area light, tidy and well used. Mirrors, metal strips and similar objects sold as fixes are modern additions not found in the texts read for this site.

↳ Does a small angled corner at a road junction count as a cut?

Many such splays are required by municipal rules for visibility at the junction. Manuals disagree on how large a cut must be to matter, and no classical figure was found.

Sources

  • Varahamihira, Brihat Samhita, chapter 53, verses 112 and 115 to 117, in the English translations by N. Chidambaram Iyer (1884) and V. Subrahmanya Sastri (1946). The difference over the north-east corner in 53.115 is between those two translations.
  • Prasanna Kumar Acharya, Summary of the Manasara, in which no rule on corners was traced.
  • The corner-by-corner grading is commonly taught in modern manuals and was not traced to the verses read.