Officials of various departments conducted an inspection of the house -- Veda Nilayam.
The house was under a thick security cover after Chief Minister K Palaniswami announced in August that it would be converted into a memorial.
"Today, we took the first step of inspecting the house of the former chief minister, including starting the formalities for acquiring the property," Chennai District Collector V Anbuselvan told reporters.
Officials from the revenue, survey, public welfare departments, Income Tax (IT) department, besides the police took part in the inspection, he said.
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Earlier, the investigation wing of the IT department had sealed two rooms of the house. These two rooms were not covered during today's inspection.
"The Income Tax department had sealed two rooms. Therefore, before taking up today's inspection, the department was formally informed and their representatives were also present," the collector said.
The IT sleuths had last month conducted searches at the office block of Veda Nilayam. The search had come days after the multi-city searches of 187 locations linked to 10 income tax assessee groups, including those linked to V K Sasikala, her kin and some associates.
The total area of the house is approximately 24,000 square feet. It was bought by Jayalalithaa and her mother in 1967.
"Veda" is the name of Jayalalithaa's mother, who was known as Sandhya in the Tamil film world.
Earlier this year, former chief minister O Panneerselvam, who had rebelled against Sasikala, launched a signature campaign for converting Veda Nilayam into a memorial.
According to the affidavit filed by Jayalalithaa when she contested the polls from the R K Nagar Assembly constituency in 2016, the house was purchased on July 15, 1967 for Rs 1.32 lakh.