State / authoritygazette-verified

Bihar Building Bye-laws 2014, as amended 2022 and by UDHD Notification 10713 (04-10-2025) — Urban Development & Housing Department, Government of Bihar

Plot — 4 sides

Bearings & site

Side A→B

Length (m)Road width (m)

Side B→C

Length (m)Road width (m)

Side C→D

Length (m)Road width (m)

Side D→A

Length (m)Road width (m)

Close the shape

Four sides on their own can still hinge into plots of quite different sizes. One more figure fixes it — give whichever you have.

Diagonal A→C (m)The best answer, if the plot was surveyed.

Proposed building

OccupancyBuilt-up area per floor (m²)One floor's plate. It is capped by the buildable envelope — beyond that it is not a bigger building, it is one standing on its own setback.Tell me the maximum floorsOn: the bye-laws decide the storey count and every check runs against that building. Off: set it yourself.

Floor height (m)Dwelling units (optional)Service area (m², optional)Comes off the built-up area before parking is computed, up to 15% of it (Table 19 note). Blank deducts nothing.Blocks on the plotTwo or more and By-law 37(1) sets how far apart they stand.Area typeTown populationULB (FAR ceiling)ULB class— sets the fee ratesLand-use zone— from the master planSaleable efficiency (%)Yours, not the bye-law's. 75% suits a plotted house; a tower with two lifts and a fire stair runs nearer 65%.

FAR-free elements (By-law 38(10))

Stilt parking — free of FAR, but costs 2.4 m of heightService floor — free of FAR, costs 2.0 m of heightBasement — free of FAR and height, but billedClaim narrow-plot relief (By-law 37(7))

Where the plot sits — height caps that ignore the road

An approach funnel of the airport, a protected monument, or the 200 m ring around the Governor's House, Secretariat, Legislative Assembly or High Court will cap this building's height whatever its road width and FAR allow. Leave a box empty if the plot is nowhere near that feature.

Nearest runway end (m)

Table 17 — under 360 m, nothing may be built at all

Airport boundary (m)

Table 18 — the transitional area

Protected monument (m)

By-law 20 — nothing within 100 m; within 300 m, 7 m and no floor above the first

Governor's House / Secretariat / Assembly / High Court (m)

By-law 21 — nothing above 10 m within 200 m

Compare with other occupancies

Residential (apartments / group housing)Commercial / mercantileOffice / businessInstitutional / educationalMedical / hospitalIndustrialStorage / warehouseAssembly (cinema / marriage hall)Mixed use

Plot — 4 sides

Proposed building

Setback plannorth up — as you declared the sides