中國指數研究院認為，城市是社會及經濟生活的重要集聚區，是人類生存賴以依靠的基本載體。基於經濟、產業及城鎮化發展水平的差異，各個城市的物理及功能狀態差異顯著，能給予在其中生活居民的支撐力也往往千差萬別。如何更好地識別和評價一個城市的年輕態水平，​​對於及時進行城市煥新、更好地支撐城市經濟社會活動具有重要的意義。

建築是城市的重要組成部分，通過各城市的住宅建築年齡中位數對城市的建築進行評價，結果顯示，美國城市建築建成普遍較早，得分較低。其中，舊金山有66%的住宅房屋建於1960年以前；紐約、芝加哥和華盛頓建於1960年以前的住宅房屋佔比也超過60%。而中國城市從主城區的住宅建築來看，很大一部分建造於近20年內，城市住宅建築較新，但核心區老舊建築集中。

從交通設施方面看，美國城市的交通設施普遍建成較早，設備老化，紐約、舊金山等城市地鐵線路時速較慢，準點率偏低。而北京是中國首個開通地鐵的城市，其第一條線路於1971年正式開始運營。中國城市的地鐵線路多建於2008年以後，杭州2012年才通地鐵。中國5個城市的地鐵運營設施先進，運行速度較快，準點率接近100%，且全部支持手機NFC或掃碼進站。

As of July 2019, the foreclosure inventory rate - which measures the share of mortgages in some stage of the foreclosure process - was 0.4%, down 0.1 percentage points from July 2018. The July 2019 foreclosure inventory rate tied the prior eight months as the lowest for any month since at least January 1999.

As of July 2019, the foreclosure inventory rate - which measures the share of mortgages in some stage of the foreclosure process - was 0.4%, down 0.1 percentage points from July 2018. The July 2019 foreclosure inventory rate tied the prior eight months as the lowest for any month since at least January 1999.

An index of homes put up for sale fell to the lowest since June 2016, the month of the referendum, while measures of newly agreed sales and buyer inquires also slid, according to a report by the Royal Institution of Chartered Surveyors published Thursday. RICS’s headline index of prices remained negative.

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Between 2013 to 2018, the median sales price in vacation home counties increased at a slightly higher pace of 36% compared to the pace of increase of all existing and new homes sold, at 31%. Median price increases occurred across both expensive and inexpensive areas. The counties with the highest price increases during this five-year span were in three states: Pennsylvania, which includes Pike and Monroe counties; Wisconsin, which contains Price and Washburn counties; and Massachusetts, which includes Nantucket.