About
Kofen Chang · JoyfulHouse
JoyfulHouse pairs Kofen Chang's San Gabriel Valley brokerage practice with in-house smart-home and solar engineering.
Real estate
CalRE# 01951860
REALTOR® · CalRE# 01951860
MBA-trained and bilingual in English and Mandarin, Kofen is a REALTOR® who came up through Coldwell Banker Global Luxury in Pasadena and San Marino. She has closed 88+ transactions and holds a 4.9-star average across 50 client reviews.
[email protected]Smart home
Home Assistant · EG4
Engineering practice
JoyfulHouse's in-house engineering practice designs smart-home and solar systems and maintains 17 open-source projects used by real homes, including its own.
[email protected]
Our Story
San Gabriel Valley · Real estate + engineering
JoyfulHouse is a modern homeownership company in the San Gabriel Valley, with Kofen Chang leading real estate and an in-house smart-home and solar engineering practice.
Kofen co-founded the firm to pair brokerage with engineering. JoyfulHouse maintains 17 open-source projects used by real homes, including its own.