Mates Tetsugakudo Koen is a seven-storey reinforced concrete building with a flat roof at 1-37-1 Egota in Nakano-ku, completed in September 1998 and built by Dai Nippon Doboku, with 52 residences. Management is fully outsourced to Meitetsu Community Life, with a caretaker on weekdays and on Saturday mornings. According to the management report (July 2026), the repair reserve stood at JPY 104,361,875 as of 31 May 2026, with no borrowing and no arrears in management fees, and a long-term repair plan prepared in 2016; large-scale repair works were carried out in 2013. The building has a monitor auto-lock, a delivery box and security cameras. Up to two pets are permitted (large dogs not permitted; building rules apply); office use and short-term rental are not permitted. Parking is listed as available at JPY 15,000–25,000 per month as of 23 October.

This residence is a 1SLDK of 41.19 sq m on the first floor with a 5.77 sq m balcony and a planter space, with planting arranged to screen the residence from outside views. The plan provides an LDK of approximately 11.5 jo, a service room of approximately 5.0 jo, a closet and hall storage, and a separate 1216-size bathroom, powder room and toilet. An interior renovation is under way and is scheduled for completion on 22 January 2027, covering replacement of the kitchen, bathroom, washstand and toilet, wet-area flooring, new flooring, joinery and lighting, the water heater (with reheating), a shoe cupboard and new wall coverings throughout with an accent wall covering, followed by house cleaning. The listed equipment includes a wall-type kitchen with a dishwasher and a built-in water purifier tap, and a bathroom with a drying unit and reheating. The residence is vacant, with handover by consultation.

The listing material notes Tetsugakudo Park and Egota Park within about 2 minutes on foot, a Lawson approximately 180 m away (3 minutes), a Comodi Iida approximately 350 m away (5 minutes) and a Kokokara Fine drugstore approximately 900 m away (12 minutes).