The best part of Zhengzhou for buying a house is the High-tech Industrial Development Zone (HIDZ). This area has seen significant growth in recent years, making it an attractive location for real estate investment. The HIDZ is home to many high-tech companies and offers a range of amenities, including modern infrastructure, educational institutions, and recreational facilities.

The HIDZ's strategic location, convenient transportation links, and economic development have contributed to its popularity among homebuyers. According to a report by the Zhengzhou Municipal Bureau of Statistics, the HIDZ has seen a 15% increase in property sales over the past two years. This growth is attributed to the area's robust economic performance, with a focus on technology and innovation.

The HIDZ boasts a well-developed transportation network, including the Zhengzhou Metro, which connects the area to other parts of the city. This accessibility makes it convenient for residents to commute to work and enjoy leisure activities. Additionally, the HIDZ has a variety of housing options, from luxury apartments to affordable townhouses, catering to different budgets and preferences.

Moreover, the HIDZ is surrounded by green spaces and parks, such as the Zhengzhou Botanical Garden and the Xingyang National Forest Park, which enhance the quality of life for residents. The presence of reputable schools and healthcare facilities further adds to the appeal of this area.

In conclusion, the High-tech Industrial Development Zone in Zhengzhou is the best part of the city for buying a house due to its economic growth, convenient transportation, diverse housing options, and high quality of life.