A $1 million plan has been unveiled to upgrade the Government Centre in First Street.
A planning application includes work on three consultation rooms and three dental rooms on the ground floor of the offices.
Money would also be spent on building a new playground at the rear of the building.
Northern Planning Consultants says the Government Centre will "continue to provide a centralised governance facility, providing office space for a number of Northern Territory Government agencies, along with other agencies and organisations, and health services".
The proposed development comprises internal alterations and additions to the existing offices and medical clinic to provide additional office space, additional consulting rooms, workstations and the formalisation of existing department/agency areas within the building.
The centre houses the Primary Health Care Branch and Mental Health, Alcohol and Other Drug premises.
The renovations also include plans for a new playground at the rear of the building, with soft-fall surface under play equipment.
New pathways, pedestrian areas and visitor and staff amenities including seating areas and bicycle storage are part of the upgrades.
"The proposal seeks to enable the continued use and function of the Katherine Government Centre as the primary facility for Governance and community access to government and associated services for the Katherine region," the planners state.
Comments on the plans can be made to the NT Development Consent Authority until April 8.
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