How Does a Section 351 Notice Differ From a Section 354-A Notice?

Vikrant D. Shetty

Aug 24

11 min read

Updated: Aug 26

How Does a Section 351 Notice Differ From a Section 354-A Notice?

A show-cause notice under Section 351 of the Mumbai Municipal Corporation Act, 1888 asks an owner to justify construction already carried out, while a stop-work notice under Section 354-A of the same Act orders construction halted immediately, without any opportunity to explain first. Both provisions apply once the Brihanmumbai Municipal Corporation considers that work has been unlawfully commenced under Section 347, but they differ in timing, procedure, and consequence: Section 351 typically follows completed work, while Section 354-A intervenes while construction is ongoing. Owners who receive either notice often mistake one for the other. This article explains how the two diverge and what an owner should do on receiving each.

The Statutory Scheme Behind Both Notices

Section 347: The Precondition That Makes Work "Unlawful"

Before either notice makes sense, it helps to see what makes construction "unlawful" in the first place. Section 347 of the MMC Act bars a person from starting to erect a building or carry out specified work until the Commissioner has sanctioned the plans under Sections 345 and 346, or has failed to communicate disapproval within the prescribed period. Practitioners generally call this the Intimation of Disapproval (IOD). Work also has to begin within one year of that sanction, or it is treated as unlawful commencement all over again, even on an originally approved plan. Sections 351 and 354-A both switch on once the Corporation forms the view that Section 347 has been breached. What happens after that is where they part ways.

Section 351: A Notice to Show Cause, Not an Order to Demolish

A show-cause notice under Section 351 is not a demolition order by itself. It asks the owner or occupier to satisfy the Commissioner that the work named in the notice was actually carried out in line with Sections 337, 342 and 347 of the Act. The recipient usually gets seven days from service to respond with proof of sanction: an approved plan, an IOD, or a commencement certificate. Only once that explanation falls short does the Commissioner get the power under Section 351(2) to remove, alter, or pull down the work, with the cost charged to whoever is responsible.

Section 354-A: The Power to Stop Work Mid-Construction

Section 354-A works on a different premise. Where the Commissioner is satisfied that a building or work has been unlawfully commenced, or is being unlawfully carried on, a stop-work notice in writing can require the person erecting the building to halt immediately. Unlike Section 351, this provision targets construction that is still happening. Its job is to freeze the site before more of the unauthorised structure goes up, not to weigh whether the work can ultimately be defended.

How the Two Notices Diverge in Timing and Procedure

Before Completion vs After the Fact

The real difference between the two provisions is usually timing. Section 354-A is the Corporation's emergency brake, used while work is visibly ongoing at the site. Section 351 tends to show up after a structure, or part of one, is already standing, when the question has shifted from stopping construction to deciding whether the finished work can be regularised or has to come down. It is common to see both notices land on the same structure at different points: a Section 354-A notice when the unauthorised work is first spotted, then a Section 351 notice once someone has actually measured the extent of the deviation.

The Seven-Day Window Under Section 351

The seven-day response period under Section 351 is a real chance, not paperwork for its own sake, and it is where most winnable cases are actually won. An owner who can produce the sanctioned plan, the IOD, and, where it matters, a commencement certificate for the specific portion in question has a genuine shot at getting the notice dropped here, before it turns into a demolition order.

No Statutory Waiting Period Under Section 354-A

Section 354-A, on the other hand, has no cooling-off period before the stop-work direction takes hold. The written notice takes effect from the moment it is served, and the person doing the work is expected to comply forthwith. This is a real procedural trap: owners sometimes wait around for a "show cause" opportunity that Section 354-A simply does not give them before the initial stop-work direction lands. Whatever explanation the owner wants to offer usually has to follow the stop-work notice, not come before it.

	Section 351 (Show-Cause Notice)	Section 354-A (Stop-Work Notice)
Trigger	Work already carried out contrary to Section 347	Work unlawfully commenced or ongoing at the time of notice
Nature	Invitation to show cause; not itself a demolition order	Direction to stop work forthwith
Response window	Typically seven days from service	No statutory waiting period before it takes effect
Consequence of non-compliance	Removal, alteration, or demolition at owner's cost; possible prosecution	Removal of materials, machinery and equipment without further notice
Who must be served	Occupier or tenant ordinarily sufficient	Person erecting or executing the work
Typical stage of construction	Often issued after work is complete or substantially advanced	Issued while construction is still in progress

What Are the Consequences of Non-Compliance?

Demolition and Cost Recovery Under Section 351(2)

If cause is not shown to the Commissioner's satisfaction within the period fixed under Section 351, the Corporation can go ahead and remove, alter, or demolish the structure and recover the cost from whoever is responsible. Continuing to ignore the notice can also mean prosecution, with the Act allowing for imprisonment up to one year, along with a fine, depending on how serious the unauthorised work is.

Seizure and Removal Under Section 354-A(3)

Section 354-A has its own bite. Beyond the order to stop, sub-section (3) lets the Commissioner, without any further notice, have materials, machinery, equipment, devices, or articles used in the construction removed from the site. That is a genuinely different consequence from anything Section 351 offers at the show-cause stage. Ignoring a stop-work notice can mean construction material physically disappears from the site before anyone even gets to the question of demolishing the structure itself.

Prosecution Under Section 475-A

Separately, Section 475-A of the MMC Act penalises the act of commencing work contrary to Section 347 on its own terms: imprisonment up to three months, or a fine up to twenty thousand rupees, or both. This penalty attaches to the unlawful commencement itself and can run alongside whatever follows under Sections 351 and 354-A.

What Points of Controversy Do Practitioners Encounter With These Notices?

Can the Two Notices Be Issued Together?

Nothing in the MMC Act forces the Corporation to pick one provision over the other. In practice, the two show up together often: a Section 354-A notice halts the ongoing work, while a Section 351 notice follows, in parallel or soon after, to work out whether what has already been built can stand. Owners sometimes argue that complying with a Section 354-A notice should rule out a later Section 351 action on the same structure. That argument rarely lands, because the two provisions are answering different questions: one asks whether work should carry on, the other asks whether the work already done was lawful to begin with.

Service on Occupier vs Owner

Who actually has to be served for a notice under these provisions to hold up is a question that comes up often, particularly where the person in occupation is a tenant rather than the title-holder. The Bombay High Court dealt with this directly in Anil Madhav Gore v. Bombay Municipal Corporation of Greater Bombay [2001(4) ALL MR 464], where an occupant challenged action taken against a structure on the ground that the landlord should have been separately noticed. The Court held that serving the notice under Section 351 on the occupier or tenant is ordinarily enough, and the Corporation is not required to independently notice the owner or landlord unless the occupier, on getting the notice, specifically says the structure predates their occupation and asks the authorities to seek the owner's explanation. The judgment also made clear that only censused structures within a recognised slum area get protection under the Act; an unauthorised structure does not become untouchable under Section 351 just because of where it sits. For a tenant or licensee who gets a Section 351 notice, this means the burden lands on them to respond. Assuming "the landlord will deal with it" is a genuine risk.

When the Wrong Provision Is Invoked

A separate issue that comes up more and more is what happens when the Corporation cites Section 351 in circumstances that really call for a different provision, such as Section 347 itself for unlawful commencement, or invokes Section 354-A after the work is already finished rather than while it is still going on. Where a notice muddles or misapplies these provisions, the recipient may have grounds to challenge it on the basis that the statutory precondition for the section actually invoked was never met, a point examined further in a companion piece on how these sections sometimes get mismatched in practice.

Responding to a Notice: Practical Steps for an Owner

Verifying the Sanctioned Plan Against the Site Condition

The single most useful thing to do on receiving either notice is to lay the sanctioned plan, the IOD, and the commencement certificate against the physical condition of the property, floor by floor if it comes to that, to pin down exactly which portion the Corporation considers unauthorised. This often turns up the fact that only a fraction of the structure, a later mezzanine or an enclosed balcony, say, is actually in question, which changes the response strategy considerably compared with treating the whole structure as under threat. The same documentary discipline matters well before any notice arrives. A prospective purchaser running pre-purchase due diligence on a property should specifically check municipal records for pending Section 351 or 354-A action, since an undisclosed notice tends to surface as a real liability only after the deal has closed.

Does Either Notice Foreclose Compounding?

Owners often ask whether getting a Section 351 or Section 354-A notice shuts the door on regularising the structure through compounding under the Maharashtra Regional and Town Planning Act, 1966. As a general matter, it does not automatically foreclose a compounding application, though whether compounding is actually available depends on the nature of the deviation and whether it falls within the categories the planning authority is allowed to regularise, a subject with its own procedural requirements and limits.

Frequently Asked Questions

What is the deadline to respond to a Section 351 show-cause notice?

The notice usually requires a response within seven days of service, though the exact period stated in the particular notice should always be checked, since that is what actually governs the deadline in that case.

Can construction continue while a Section 351 notice is pending?

Section 351 on its own does not necessarily stop ongoing work; that is Section 354-A's job. But if a Section 354-A notice has also been issued, or the Corporation separately directs work to stop, continuing construction can make the owner's position worse and may draw independent prosecution.

Does a stop-work notice under Section 354-A need to be preceded by a hearing?

No. Section 354-A's text does not require a hearing before the initial stop-work direction takes effect; the notice operates on service. Any representation the owner wants to make usually follows the stop-work direction rather than coming before it.

Who is legally required to be served with a Section 351 notice, the owner or the tenant?

Service on the occupier or tenant in possession is generally enough, as the Bombay High Court has clarified, and the Corporation does not have to separately notice the owner unless the occupier specifically raises that point in their response.

What happens if the materials on site are removed under Section 354-A(3)?

The Commissioner can have building materials, machinery, equipment, or devices used in the unauthorised work removed without further notice once a stop-work direction has been issued and ignored. There is no separate notice requirement for this step.

Can a property owner be prosecuted even if the structure is eventually regularised?

Potentially, yes. The administrative consequences under Sections 351 and 354-A (demolition, removal of material) are separate from the criminal liability Section 475-A creates for the underlying unlawful commencement. Regularising the structure does not automatically end a prosecution that has already started.

Is a Section 351 or Section 354-A notice appealable?

Orders passed in Section 351 proceedings can be challenged, typically before the Bombay High Court, on grounds such as non-service, denial of a genuine opportunity to show cause, or that the construction was in fact sanctioned. Section 354-A notices, being interim in character, tend to get challenged where the notice can be shown to rest on a factual error about whether work was even ongoing.

Can the Corporation issue a Section 354-A stop-work notice after construction is already complete?

Generally, no. Section 354-A is designed to halt work that is unlawfully commenced or still ongoing; once construction is complete, the Corporation typically proceeds instead under Section 351, which addresses work already carried out. A stop-work notice issued after completion may be challenged on the ground that the precondition for that provision was never met.

Is prosecution under Section 475-A separate from action taken under Section 351 or Section 354-A?

Yes. Section 475-A penalises the act of commencing work contrary to Section 347 in its own right, with imprisonment up to three months or a fine up to twenty thousand rupees, or both. This prosecution can proceed independently of, and alongside, whatever administrative action follows under Section 351 or Section 354-A.

Can an owner recover the cost of demolition charged by the Corporation under Section 351(2) if a court later finds the notice was wrongly issued?

Where an owner successfully challenges a Section 351 demolition and cost-recovery action before the Bombay High Court and the notice is set aside as wrongly issued, any amount already recovered or sought to be recovered from the owner under Section 351(2) of the Mumbai Municipal Corporation Act, 1888 becomes liable to be refunded or waived, since the statutory basis for the recovery no longer exists. An owner should specifically seek a direction on cost recovery when framing the writ petition, rather than assuming a favourable finding on the demolition itself automatically resolves the cost question.

Does a Section 354-A stop-work notice apply to interior renovation work that does not change the building's structure or footprint?

Section 354-A of the Mumbai Municipal Corporation Act, 1888 applies to unlawfully commenced building or work, and its reach depends on whether the interior work in question required prior sanction under Section 337 or Section 342 in the first place. Purely cosmetic interior work that does not alter structural elements, load-bearing walls, or the sanctioned layout typically falls outside the sanction requirement altogether, but work that changes the internal layout in a way affecting structural safety or permitted use can still require sanction and remains exposed to Section 354-A action.

Can a tenant or occupier independently apply for compounding of an unauthorised structure without the owner's participation?

Compounding of unauthorised construction under the Maharashtra Regional and Town Planning Act, 1966 is generally pursued by the person with title or a substantial interest in the property, ordinarily the owner, since the planning authority needs assurance that the person seeking regularisation has the authority to alter or maintain the structure. A tenant or occupier facing a Section 351 or Section 354-A notice typically cannot independently pursue compounding without the owner's cooperation, which is one reason the courts have placed the practical burden of responding on the occupier while the underlying regularisation route often still requires the owner's involvement.

What evidence does the Brihanmumbai Municipal Corporation need before issuing a Section 354-A stop-work notice, as opposed to a Section 351 notice?

A Section 354-A stop-work notice requires the Commissioner to be satisfied that construction has been unlawfully commenced or is being unlawfully carried on, typically based on a site inspection or a report confirming ongoing work without visible sanction documentation, and does not require the fuller documentary showing expected before a Section 351 notice, which follows a more considered assessment of whether completed work matches Sections 337, 342, and 347. The lower evidentiary threshold for Section 354-A reflects its function as an urgent, provisional measure to freeze site activity rather than a final determination of unlawfulness.