Building plan sanction in Delhi decides whether a South Delhi rebuild becomes four saleable floors or a sealing notice. For most plots it runs through the MCD’s online building permit system under the Unified Building Bye-Laws, 2016. Here is who sanctions your plan, the papers and NOCs that matter in 2026, the fees, the statutory clocks and where stilt + 4 rebuilds go wrong.
For a plotted house in an MCD colony, building plan sanction in Delhi is filed online by a registered architect through the MCD’s Online Building Permit System under the Unified Building Bye-Laws for Delhi, 2016. Residential plots are sorted by risk: up to 105 sq m is “very low”, above 105 and up to 500 sq m is “low” — most 200–500 sq yd South Delhi plots — and above 500 sq m is “moderate”. In the low-risk band the architect can issue the permit, or the authority must decide within 10 days; outside agencies get 15 days before their NOC is deemed issued. A sanction is valid for five years; work must start within one. Jor Bagh and Golf Links fall under the NDMC, cantonment plots under the Cantonment Board.
We sit across the table from plot owners and builders when a 1970s house in GK-1, Defence Colony or Panchsheel Park is about to come down. The sanction is the hinge of that deal: the collaboration agreement usually makes it the builder’s job, the old house comes down only after it is in hand, and every future buyer will ask for it. What the envelope allows — FAR, coverage, dwelling units — is in our guide to how many floors are allowed in South Delhi; we do not repeat it here.
Before any drawing is made, settle which body controls building on the plot. In South Delhi there are three.
| Authority | Typical South Delhi areas | What to know |
|---|---|---|
| Municipal Corporation of Delhi (MCD) | GK-1, GK-2, Defence Colony, Panchsheel Park, Anand Niketan, Vasant Vihar, Hauz Khas, Safdarjung Enclave and most plotted colonies | Online Building Permit System under UBBL 2016; the subject of this guide |
| New Delhi Municipal Council (NDMC) | Jor Bagh, Golf Links, Sunder Nagar and the Lutyens area | Own building department; Lutyens Bungalow Zone plots carry extra heritage and height controls |
| Delhi Cantonment Board (DCB) | Plots inside Delhi Cantonment | Cantonment bye-laws apply; the Ministry of Defence issued draft Delhi Cantonment Building Bye-Laws, 2026 for public comment in October 2026 |
The Unified Building Bye-Laws for Delhi, 2016 (UBBL) replaced the 1983 bye-laws with a risk-based model: the smaller and simpler the building, the more the government relies on the registered architect. Since October 2019, plots up to 500 sq m have been sanctioned online on self-certification: the architect files, a rule engine checks the drawings, the fee is paid online and a digitally signed sanction letter is generated.
| Risk category | Plot size | Process | Decision time |
|---|---|---|---|
| Very low | Up to 105 sq m (about 125 sq yd) | “SARAL” route: submission with documents and fees is itself the deemed sanction | On submission |
| Low | Above 105 up to 500 sq m (about 126–598 sq yd) | Architect or engineer may issue the permit after filing; or the owner opts for sanction by the authority | 10 days if the authority sanctions |
| Moderate | Above 500 sq m | Sanctioned by the authority | 20 days |
| High | Group housing; height 15 m and above | Sanctioned by the authority | 30 days |
Three readings. First, a 200–400 sq yd plot is low risk; a plot of about 600 sq yd or more crosses 500 sq m and becomes moderate, with an authority decision and plinth inspection. Second, Table 3.1 describes these categories as “below 15 m, including stilt”, while stilt + 4 runs to 17.5 m; let your architect confirm how the file is routed rather than assuming a category. Third, self-certification puts the risk on the architect: in June 2023 the MCD was reported to have barred 140 architects for three years and revoked plans passed on wrong information. A cheap architect who “passes” a non-compliant plan saves you nothing.
The sanctioning authority must decide within the category time or 30 days, whichever is less (clause 2.3.1). Outside agencies must respond within 15 days or the category time, whichever is less, or their NOC is deemed issued (clause 2.3.3). If the authority misses its deadline, the plan is deemed sanctioned, released once the fees are deposited (clause 2.3.4). The same clause warns that a deemed sanction authorises nothing against the lease, the Master Plan or the bye-laws. Silence from the MCD is not permission to build a fifth floor.
Most delays start with the owner’s papers. This is the set we ask for before an architect is briefed.
The registered sale or conveyance deed (or lease and conversion papers) and the chain behind it; on inherited plots, the probate, succession or relinquishment papers for every co-owner. One missing heir is the commonest reason a file stalls.
The plot should stand mutated in the current owners’ names, with MCD property tax paid up to date. See our guides to mutation in Delhi and MCD property tax.
Site plan, floor plans, sections and elevations, digitally signed by a registered architect, with the Common Application Form and the professionals’ declarations.
A structural engineer’s certificate that the design meets the structural and earthquake-safety provisions, plus a basement indemnity where there is a basement.
Existing trees must be shown on the site plan. Felling or transplanting any tree needs the Tree Officer’s permission under the Delhi Preservation of Trees Act, 1994, with compensatory plantation (ten saplings per tree under the Forest Department’s procedure) and a security deposit. Cutting without it is an offence.
Plots near IGI flight paths are checked against the AAI’s colour-coded zoning map; above the grid’s permissible height, the architect applies on AAI’s NOCAS portal. We see this most in parts of Vasant Vihar (see our Vasant Vihar guide).
One 2026 change matters. In August 2026 the DDA approved UBBL amendments that, as reported, de-link prior NOCs from the Delhi Pollution Control Committee, the Chief Inspector of Factories, the Delhi Jal Board and the Forest Department from the building permit. As of 24 October 2026 we have not found it notified — treat it as approved, notification pending until your architect confirms it is live on the portal. Even then it removes paperwork, not the law: you still need Jal Board connections and the Tree Officer’s permission.
The Delhi Fire Service lists residential buildings above 15 metres, or with ground plus four upper storeys, as needing fire clearance. In Vikas Singh v. Government of NCT of Delhi (2022 INSC 824), the Supreme Court read the fire rules with the amended Master Plan: for buildings with stilt parking, only those above 17.5 metres (including stilt) are treated as high-rise. In our reading, a stilt + 4 building within 17.5 m is outside the high-rise fire regime; an extra storey or height overrun changes that. Amended 2026 fire rules start when the amended bye-laws are notified, so confirm your design with the architect.
There is no single “sanction fee”. Fees follow UBBL Annexure III and an automated calculator, so the portal computes the demand at filing. We do not quote rupee figures; they move with MCD resolutions.
| Fee head | What it is | What drives it |
|---|---|---|
| Building permit fee | Basic fee for scrutiny and sanction | Covered area, including basement |
| Additional FAR charges | Where the design uses FAR added by Master Plan amendments | FAR used and the colony’s rate |
| Other MCD charges | Infrastructure-linked levies, additional dwelling units, revalidation, revised plans | The design, units and current MCD resolutions |
| Construction workers’ welfare cess | 1% of construction cost under the BOCW Cess Act; own-residence work costing up to ₹10 lakh is outside the Act | Estimated construction cost |
Budget the demand alongside the structure (see our construction cost guide). A collaboration agreement should say who pays each head; “approvals by the builder” is too vague.
The statutory clocks are short; the project is not. Here is a clean-papers 300–400 sq yd collaboration rebuild in GK-2 or Defence Colony.
| Stage | Typical duration | What decides it |
|---|---|---|
| Title, mutation and tax clean-up | 2–8 weeks; months if an heir is missing | Inherited plots, unpaid tax, leasehold conversion |
| Survey, design and structural drawings | 4–8 weeks | Owner–builder sign-off on the floor plans and parking allotment |
| Online filing to sanction | 2–6 weeks | Rule-engine errors, document queries, fee payment; statutory clock 10–20 days |
| Tree permission and AAI check (in parallel) | Weeks to a few months | Number of trees; airport grid |
| Vacate, demolish, excavate basement | 1–3 months | Neighbour protection, winter GRAP curbs on construction |
| Structure to roof | 8–12 months | Builder’s cash flow and labour |
| Finishing, services, completion certificate | 4–8 months | Deviations found at completion; DJB and power connections |
In practice we see about two to three months from brief to sanction and 18–30 months from sanction to completion certificate, well inside the five-year validity. At plinth level the architect files the report on low-risk plots; on moderate-risk plots the authority inspects within seven days or the inspection is deemed complete.
Most rebuilds are basement + stilt + four floors + terrace. Ownership of each is in our guide to terrace rights, stilt parking and basements; the sanction side comes down to four points.
The stilt is a non-habitable floor of columns, open on at least two sides, for parking. A stilt enclosed into a room, a guard’s flat or a gym is the deviation the MCD targets most persistently.
The basement is outside FAR only for permitted uses — parking, household storage, services. A basement shown as storage and sold with a bedroom is a deviation, whatever the sale deed says.
Height is measured to the top of the structural slab, excluding the machine room and decorative features; the stilt + 4 envelope tops out at 17.5 m. The terrace takes only the structures the bye-laws allow; a room on the roof needs FAR and sanction.
Every buyer we take to a new floor asks the same three questions: show me the sanction, show me the completion, and show me they match. A rebuild that cannot answer the third one pays for it at resale.
Under clause 2.4.1 of the UBBL, a building permit is valid for five years from issue, provided construction starts within one year of sanction. An unfinished building’s permit can be revalidated in multiples of a year, up to five years at a time, on payment of the fee (clause 2.4.4). Do not let it lapse: an occupancy-cum-completion application filed more than 30 days after the permit expires is not entertained (clause 2.4.3).
The sanction is half of a clean file. The other half is the occupancy-cum-completion certificate, and whether the building matches the drawing; see our guide to the completion certificate in Delhi.
The problem is rarely the sanction letter; it is the gap between it and the building. Under the Delhi Municipal Corporation Act, 1957, prior sanction is needed for any erection or alteration (section 332); work without or against sanction can be stopped (section 344), ordered demolished after a show-cause notice (section 343) and sealed (section 345A); and a sanction obtained by misrepresentation can be cancelled (section 338). Orders are appealable to the Appellate Tribunal, MCD. The MCD uses all of it: on 9 September 2026 alone it reported 34 demolition actions and 17 sealings.
| Deviation | Usually | Why it matters |
|---|---|---|
| Minor internal changes (partitions, door and window positions) | Regularised at completion or by a revised plan | Cheap on paper, expensive if left to the buyer’s bank |
| Small variations within the bye-law tolerance | Compoundable on payment | Tolerances and rates sit in Annexure IV; confirm the current schedule |
| Excess FAR or ground coverage | Not compoundable; must be removed | Enclosed balconies, a terrace room, a covered setback |
| Extra storey, height over 17.5 m, extra dwelling units | Not compoundable | Can also pull the building into the high-rise fire regime |
| Enclosed stilt or basement misuse | Not compoundable while the misuse continues | Common trigger for sealing in plotted colonies |
The DDA’s building FAQ states the principle: deviations beyond the limits on coverage, FAR, setbacks, height, floors, units, parking or use must be rectified at the owner’s cost.
Demolishing before the sanction — the owner is homeless while the file sits in queries. Building to the brochure, not the drawing — an extra unit or a closed stilt sells well until the completion inspection. A power of attorney that does not cover sanction — the builder files on the owner’s behalf, and the PoA must say so expressly.
Buyers: our builder floor buying checklist starts with this file, and our MPD 2047 highlights track what the new master plan changes.
Before you sign a collaboration or brief an architect, get the plot’s sanction path checked: the authority, the risk category, the papers that will hold it up and the floors the drawing can legally carry. Tell us the colony and plot size.
The rebuild timeline and its ranges are SouthDelhiFloors desk observations (October 2026), not statutory periods. Sources: the Unified Building Bye-Laws for Delhi, 2016 (DDA compendium) (Table 3.1, clauses 2.2–2.5 and 3.1); the LG’s October 2019 launch of the online sanction module; the Delhi Fire Service FAQs; Vikas Singh v. Government of NCT of Delhi, 2022 INSC 824; the Forest Department’s tree-cutting procedure; the Delhi Labour Department’s BOCW cess page; the DDA building FAQs; the Delhi Municipal Corporation Act, 1957; and news reports of the August 2026 UBBL amendments. Bye-laws and fees change by notification; confirm with your architect before filing.
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