Clause (b) of Section 21(1) of the U.P. Urban Buildings (Regulation of Letting, Rent and Eviction) Act, 1972 is the only release ground that turns on the physical state of the structure rather than the landlord's domestic or business need. It lets the prescribed authority release a tenanted building where the building is in a dilapidated condition and is required for purposes of demolition and new construction. Both limbs must coexist: a sound building cannot be cleared merely because the landlord wishes to redevelop, and decay alone does not displace a tenant unless rebuilding genuinely follows. This note explains the twin statutory conditions, the burden of proof, the comparative-hardship overlay, the original tenant's reallotment right, and the case law that controls how the clause is read.

The statutory text and its place in Section 21

Section 21(1) opens with the words "The prescribed authority may, on an application of the landlord in that behalf, order the eviction of a tenant from the building under tenancy or any specified part thereof if it is satisfied that any of the following grounds exists." Clause (b) supplies one such ground: "that the building is in a dilapidated condition and is required for purposes of demolition and new construction." The clause sits beside clause (a) (bona fide personal or family need), which dominates the litigation under the Act. Where clause (a) probes the landlord's need to occupy, clause (b) probes the condition and fate of the structure. The grammar is conjunctive: the building must be dilapidated and required for demolition followed by new construction. Drop either limb and the application fails. For the architecture of the whole provision, see our note on Section 21 eviction grounds, and for the Act's overall design the hub page.

Two cumulative conditions, not one

The drafting of clause (b) makes dilapidation a statutory pre-condition, which sharply distinguishes the U.P. Act from cognate rent statutes elsewhere. Under the Tamil Nadu Buildings (Lease and Rent Control) Act, 1960, for example, Section 14(1)(b) speaks only of a bona fide requirement for demolition and reconstruction, so courts there have repeatedly held that the building need not be old or dangerous. The U.P. legislature deliberately chose the narrower formula. A landlord under Section 21(1)(b) therefore cannot succeed merely by proving a genuine redevelopment scheme; the prescribed authority must first be satisfied, on evidence, that the existing structure is in fact dilapidated. Conversely, a building that is genuinely dilapidated but for which no demolition-and-reconstruction proposal exists also falls outside the clause, because the second limb "required for purposes of demolition and new construction" is unfulfilled. The clause thus protects tenants from two distinct abuses: pretextual decay claims, and decay used as a lever where no rebuilding is intended.

The conjunctive reading also disciplines how the authority frames its order. It is not enough to record a single composite finding that release is "justified"; the authority must return a finding on each limb separately, because the two are tested differently. Dilapidation is judged objectively against the physical state of the structure, whereas the requirement to demolish and rebuild is judged against the landlord's intention and means. An order that proves decay but is silent on the rebuilding proposal, or that accepts a rebuilding scheme without any finding of decay, is vulnerable in appeal and revision precisely because it collapses two statutory questions into one. The two limbs are best understood as a gate with two locks: both must open before the tenant can be displaced on this ground.

Proving dilapidation: evidence and inspection

"Dilapidated" is not defined in the Act and is treated as a question of fact for the prescribed authority. In practice the authority relies on a commission or local inspection of the premises, an engineer's or architect's report on structural soundness, the age of the building, photographs, and the municipal or development authority's view on safety. The standard is qualitative rather than arithmetical: the structure must have decayed to a degree that demolition is a rational response, not merely that it shows wear. Crucially, the burden lies on the landlord, who is the applicant under Section 21(1). A bald averment of decay unsupported by inspection or expert material will not satisfy the authority. Because the finding is one of fact, it attracts limited interference in revision under Section 22, and the appellate or revisional forum will not reappraise the evidence afresh unless the finding is perverse or based on no material.

Two evidentiary pitfalls recur. The first is reliance on age alone: a building is not dilapidated simply because it is old, and many decades-old structures remain perfectly sound, so the authority must look to actual decay rather than the date of construction. The second is the self-serving report: where the only material is an estimate prepared by the landlord's own engineer, untested by inspection or cross-examination, the authority is entitled to view it with caution. The safer course, frequently adopted, is for the authority to appoint a court commissioner or direct an independent local inspection so that the finding of decay rests on neutral material. A finding reached on such material is far harder to upset than one resting on the landlord's unilateral assertions.

The demolition-and-new-construction limb

The second limb requires that the building be "required for purposes of demolition and new construction." The word "required" imports a genuine, present intention to rebuild rather than a vague aspiration. While clause (b) of the U.P. Act is anchored in the building's condition, the wider Indian jurisprudence on demolition-and-reconstruction grounds is instructive on what "required" demands. In Metalware & Co. v. Bansilal Sharma the Supreme Court, construing the Tamil Nadu Act, refused to treat the condition of the building as irrelevant and insisted that the landlord show a real, timely need to demolish and rebuild, tested by capacity and concrete preparation. Translated to Section 21(1)(b), the landlord should be able to point to a workable rebuilding proposal, the financial means to execute it, and the necessary sanctions, so that the demolition is shown to be a step toward construction and not an end in itself aimed at securing vacant possession.

Bona fide need versus mere wish

Even where the structure is decayed, the requirement to rebuild must be genuine. The Supreme Court's classic statement on the difference between need and wish, though delivered under a different statute, governs the approach. In Bega Begum v. Abdul Ahad Khan, AIR 1979 SC 272, construing the Jammu and Kashmir Houses and Shops Rent Control Act, 1966, the Court held that requirement "must be an element of need as opposed to a mere desire or wish," while cautioning that the distinction should not be pressed so far as to reduce a genuine need to a mere desire. Applied to clause (b), the prescribed authority must be satisfied that the demolition-and-reconstruction proposal reflects a real requirement and is not a contrivance to evict. A scheme floated only after the eviction proceeding begins, or unaccompanied by any financial or planning steps, invites the inference that the requirement is colourable.

The post-purchase restriction in the proviso

The proviso to Section 21(1) imposes a waiting period and notice requirement on a landlord who bought the building after the Act commenced while it was already tenanted: "where the building was in the occupation of a tenant since before its purchase by the landlord, such purchase being made after the commencement of this Act, no application shall be entertained on the grounds mentioned in clause (a), unless a period of three years has elapsed since the date of such purchase and the landlord has given a notice in that behalf to the tenant not less than six months before such application." By its own terms this bar is keyed to clause (a). Practitioners must therefore read clause (b) applications against the precise statutory text and not assume the three-year-plus-notice fetter applies in the same way; the safeguard the legislature attached to condition-based releases is the cumulative-conditions test and the District-level scrutiny discussed below, not the clause (a) waiting period. The definitions that fix who is a "landlord" and "tenant" for these purposes are collected in our note on definitions.

Comparative hardship and its limited role

Section 21 is administered with an eye to balancing the landlord's requirement against the tenant's hardship, a balance the prescribed authority weighs before ordering eviction. The Act, as the Supreme Court has observed in the clause (a) context, strikes a just balance between the genuine need of the landlord and the inconvenience caused to tenants, and the mere fact that a tenant must look for alternative premises is not, by itself, decisive hardship. Under clause (b) the hardship inquiry is coloured by the structural reality: where a building is genuinely dilapidated, the safety of occupants and the public interest in replacing an unsafe structure weigh heavily, and a tenant cannot insist on remaining in a crumbling building merely to defeat the landlord's redevelopment. The protective purpose of the Act, surveyed in our introduction, does not extend to perpetuating occupation of an unsafe structure. This public-safety dimension has gained fresh emphasis in recent High Court practice, where courts have stressed that the protection of life takes primacy over the enforcement of tenancy rights once a competent authority has found a building unsafe; a tenant cannot leverage statutory protection to keep occupying premises that endanger occupants and passers-by. The reallotment right, examined below, is what reconciles this safety imperative with the tenant's continuing interest in the premises.

The original tenant's reallotment right

The dispossessed tenant is not left without remedy. Where a landlord, after obtaining a release order, demolishes the building and raises a new construction on the site, the Act preserves a statutory first claim for the original tenant. On an application made within the prescribed time, the District Magistrate may allot the new building to the original tenant, who becomes liable to pay rent equivalent to "one per cent per month of the cost of construction thereof (including the cost of demolition of the old building but not including the value of the land)." This converts clause (b) from a simple eviction mechanism into a reconstruction-with-restoration scheme: the landlord gets to rebuild an unsafe structure, and the tenant retains a right of re-entry to the rebuilt premises at a regulated rent. The right is, however, conditional on a timely application; a tenant who does not apply, declines the lease, or later abandons the premises forfeits the protection.

Procedure before the prescribed authority

An application under Section 21(1)(b) is filed before the prescribed authority, which issues notice to the tenant, frames the issues of dilapidation and bona fide requirement, and records evidence including any inspection or expert report. The authority's order is appealable to the District Judge under Section 22, and the High Court's supervisory jurisdiction under Article 227 remains available against perverse findings. Because clause (b) turns on the dual factual questions of decay and genuine rebuilding intent, a well-prepared landlord leads documentary and expert evidence on both before the authority, rather than reserving it for appeal, since concurrent findings of fact on dilapidation and bona fides are difficult to disturb. The release mechanism for buildings that fall vacant by other routes, and the allotment regime generally, are dealt with in our note on allotment and release of vacant buildings.

Distinguishing clause (a) from clause (b)

The two principal release grounds are often pleaded together but rest on different foundations. Clause (a) asks whether the landlord bona fide requires the building for occupation by himself or family or for a profession, trade or calling, and is governed by the need-versus-wish test of cases such as Bega Begum v. Abdul Ahad Khan as applied to the U.P. Act. Clause (b) asks instead whether the building is dilapidated and required for demolition and new construction. A landlord may, of course, intend after reconstruction to occupy the building himself, in which case the two grounds converge; but the gateway under clause (b) remains the structural condition. Confusing the two is a common pleading error: invoking clause (b) without leading any evidence of dilapidation, or invoking clause (a) where the real grievance is the building's decay, exposes the application to dismissal.

Practical takeaways for the exam and the bar

For the judiciary and CLAT-PG aspirant, four propositions repay memorisation. First, Section 21(1)(b) is conjunctive: dilapidation and a demolition-and-new-construction requirement must both be proved by the landlord. Second, unlike the Tamil Nadu Act construed in Metalware & Co. v. Bansilal Sharma, the U.P. Act makes the dilapidated condition of the building a statutory pre-condition, so a sound building cannot be cleared on this ground. Third, the requirement to rebuild must be a genuine need, not a wish, applying the Bega Begum standard. Fourth, the tenant retains a reallotment right to the reconstructed building at one per cent per month of the cost of construction, making clause (b) a restoration scheme rather than a bare eviction. Read alongside the full Section 21 grounds, clause (b) emerges as a carefully fenced power: it lets unsafe buildings be replaced without handing landlords a free tool for displacing protected tenants.

Frequently asked questions

Does Section 21(1)(b) require both a dilapidated condition and a demolition-reconstruction plan?

Yes. The clause is conjunctive. The landlord must prove that the building is in a dilapidated condition and that it is required for purposes of demolition and new construction. Either limb failing defeats the application.

Can a landlord evict under clause (b) if the building is structurally sound but he wants to redevelop?

No. Unlike the Tamil Nadu Act considered in Metalware & Co. v. Bansilal Sharma, the U.P. Act treats the dilapidated condition as a statutory pre-condition. A sound building cannot be released merely because the landlord prefers a new structure.

What test governs the genuineness of the requirement to rebuild?

The need-versus-wish test. In Bega Begum v. Abdul Ahad Khan, AIR 1979 SC 272, the Supreme Court held that requirement means "an element of need as opposed to a mere desire or wish," while warning that a genuine need must not be reduced to a mere desire.

Who bears the burden of proving dilapidation?

The landlord, as applicant under Section 21(1). The prescribed authority generally relies on a local inspection or commission, an engineer's report, the building's age and condition, and any municipal or development-authority view before recording a finding of decay.

Does the original tenant have any right after the building is demolished and rebuilt?

Yes. On a timely application, the District Magistrate may allot the new building to the original tenant, who pays rent of one per cent per month of the cost of construction (including demolition cost but excluding land value). The right lapses if the tenant fails to apply or declines the lease.

How is clause (b) different from clause (a) of Section 21(1)?

Clause (a) turns on the landlord's bona fide need to occupy the building for himself, family, or a profession, trade or calling. Clause (b) turns on the building's dilapidated condition and a demolition-and-reconstruction requirement. The gateways are distinct, though they may converge if the landlord intends to occupy after rebuilding.