Happy Valley Hooley Mansion, mid-floor Flat A, is at 21–23 Wong Nai Chung Road, directly facing the Happy Valley Racecourse. It is a single-block building with four units per floor. Flat A is one of the larger front-facing units, with a saleable area of about 700 sq ft and a gross area of 850 sq ft. Efficiency is high, and the layout is regular, with a three-bedroom configuration that is popular for both own use and rental. The mid-floor level avoids the street noise of the lower floors while still overlooking the racecourse greenery and roadside trees. It is bright and open, with better privacy than the lower floors. Access in and out of the building is convenient.

The tram terminus and the Happy Valley (Lower) bus terminus are within walking distance, and Causeway Bay MTR Station is about a 15-minute walk away. Supermarkets, restaurants and the municipal market are all nearby. The property falls within Primary School Net 12 and the Wan Chai secondary school district, with a wide choice of reputable schools. Quiet yet central, it is a practical option for a Happy Valley racecourse view.