From market context to valuation to underwriting.从区域特征，到估值比对，再到投资测算。
Each step narrows what you are looking at: the city or submarket, then a value range on a single address, then the return under the assumptions you set yourself. The same three steps on either side. 每下一步，看的范围收窄一层：城市或子市场的整体走势，具体地址的估值区间，最后是你自己设定的那套假设。两条路都是同样三步。
Residential住宅
For a single home you own or intend to buy. 面向你自有或拟购的单套住宅。
LA, Orange, Riverside & San Bernardino counties — by city. Los Angeles、Orange、Riverside、San Bernardino 四个郡 —— 按城市。
Open tool打开工具 Live已上线Multifamily多户公寓
For an apartment building you are underwriting. 面向你正在测算的一栋公寓楼。
Los Angeles County only — by submarket, not by city. 仅 Los Angeles County —— 按子市场，不按城市。
Open tool打开工具Real estate follows population, and the region moves first. 房地产由人口驱动，区域走势先于单个物业。
Cheaper than mostRegional medianPricierCircle size = population 比多数便宜全区中位更贵圆圈大小 = 人口
Note:注： Payment / income counts mortgaged sales only — all-cash sales never enter the median, and a quarter with fewer than 30 sales has no reading; a year averages whichever of its quarters do. Income is ACS (US Census); prices, rates and sale counts are SGS. Each city has three measured income points — 2012, 2017 and 2022 — and a year written with ~ is derived from the two around it at a constant rate. Income is surveyed over five years, so it moves more smoothly than the prices divided into it. 月供占收入只统计有贷款的成交，全现金成交不进中位数；一个季度成交少于 30 笔就没有读数，年值取该年有读数的季度的平均。收入来自 ACS（美国人口普查），价格、利率与成交笔数来自 SGS。每个城市的收入只有三个实测点 —— 2012、2017、2022 —— 年份前带 ~ 的，是由相邻两个实测点按固定增速推算的。收入是五年期调查，因此比与它相除的价格平滑。
Source: SGS Market Database; income from US Census ACS 来源：SGS Market Database；收入来自 US Census ACS
Each county indexed to 100. 每个郡以 100 为基准。
Note:注： County population, 2010–2025 — — 郡人口 2010–2025 —— —
Source: SGS Market Database 来源：SGS Market Database
Background reading: Los Angeles CRE — a $1 trillion market at a crossroads, on the population and affordability numbers behind this map. 延伸阅读：洛杉矶商业地产 —— 万亿美元市场的十字路口，讲的是这张地图背后的人口与可负担数字。