Plinth Area In Approved Plan Not Conclusive, Subject To Verification By Assessing Authority Under S.6 Of Kerala Building Tax Act: Kerala High Court - 2025-10-02

Kerala HC Upholds Tax Authority's Power to Verify Plinth Area, Dismisses Plea Challenging Luxury Tax Assessment

ERNAKULAM: The Kerala High Court, in a significant ruling on property taxation, has held that the plinth area specified in a building's approved plan or occupancy certificate is not conclusive and can be independently verified by the assessing authority. Justice Ziyad Rahman A.A. dismissed a writ petition filed by a homeowner challenging the imposition of building and luxury tax based on a re-measurement that found the plinth area to be larger than stated in municipal documents.

The court affirmed that under Section 6 of the Kerala Building Tax Act, 1975, the assessing authority is empowered to verify measurements, and a tax demand based on such physical verification is legally sound.

Background of the Case

The petitioner, Sherly Thomas Nalpathamkalam, owner of a residential building, contested a tax assessment by the state authorities. According to the Occupancy Certificate issued by the Changanasserry Municipality (Ext.P1), her building had a plinth area of 270.17 sq. meters. However, the tax authorities conducted their own measurement and assessed the area as being over 278.7 sq. meters, thereby making the property liable for luxury tax under the Kerala Building Tax Act.

Aggrieved by this, the petitioner filed a statutory appeal. During the appeal process, the building was remeasured on July 20, 2017, in the presence of the petitioner and her lawyer. This re-measurement determined the actual plinth area to be 297.34 sq. meters. Consequently, her appeal and a subsequent revision petition to the District Collector were dismissed, prompting her to file the present writ petition before the High Court.

Arguments Presented

• Petitioner's Argument: The counsel for the petitioner, Sri. Thomas Abraham, argued that the tax assessment should be strictly based on the plinth area mentioned in the official Occupancy Certificate (270.17 sq. meters). It was contended that the authorities could not deviate from this approved figure.

• Respondent's Argument: The Government Pleader, Sri. Arun Shanker, representing the State, defended the assessment. He argued that Section 6 of the Kerala Building Tax Act explicitly grants the assessing authority the power to verify the plinth area. The physical measurement, conducted transparently in the petitioner's presence, revealed the true area to be 297.34 sq. meters, which was the correct basis for calculating both the one-time building tax and the annual luxury tax.

Court's Legal Analysis

Justice Ziyad Rahman A.A. centered the judgment on the interpretation of Section 6 of the Kerala Building Tax Act. The pivotal section reads:

> “6. Determination of plinth area.― The plinth area of a building for the purposes of this Act, shall be the plinth area of the building as specified in the plan approved by the local authority... and verified by the assessing authority in such manner as may be prescribed.”

The court emphasized the phrase "and verified by the assessing authority," reasoning that this clause provides a clear statutory mandate for independent verification.

In his judgment, Justice Rahman observed:

> "It is evident from the aforesaid provision that... the said provision also enables the assessing authority to verify the same. This would lead to a conclusion that, the statutory stipulation contained in Section 6 is not merely to accept the plinth area mentioned in the approved plan as such, but the same is subject to verification of the assessing authority."

The court noted that the re-measurement was a detailed, factual exercise conducted in the presence of the petitioner and her legal representative. The detailed sketch produced before the court provided a clear breakdown of the calculations. Against this concrete evidence, the petitioner failed to produce any counter-evidence to prove the measurement was erroneous, relying solely on the Occupancy Certificate.

Final Verdict

The High Court found no justifiable reason to interfere with the factual findings of the tax authorities. It held that the assessment based on the physically verified plinth area of 297.34 sq. meters was valid.

The writ petition was accordingly dismissed. However, providing a measure of relief, the court acknowledged the pendency of the petition since 2023 and permitted the petitioner to pay the outstanding building tax and luxury tax in six equal monthly instalments, starting from July 15, 2025.