Forest Hill Extension, a San Francisco neighborhood, is characterized by high median income and low population density. The area contains one Low-Income Housing Tax Credit (LIHTC) funded affordable housing project, providing 107 units, of which 106 are low-income. This project accounts for approximately 15.8% of the neighborhood's estimated 677 housing units, aligning with targets for a balanced community.

The LIHTC project in Forest Hill Extension received $1,627,989 in tax credits, averaging about $15,215 per unit in federal funding. Completed in 2016, the "255 Woodside" project marked the introduction of LIHTC-funded affordable housing to the area. The development consists of 87 efficiency units and 2 one-bedroom units, suggesting a focus on housing for individuals or small households.

Demographic trends since the project's completion in 2016 show a relatively stable population, fluctuating between 1,700 and 1,900 residents. Median income has increased from $168,814 in 2016 to $190,441 in 2022, indicating growing affluence. Racial demographics have shifted slightly, with decreases in white (49% to 48%) and Asian (31% to 25%) populations, and an increase in residents identifying as two or more races (3% to 14%). The Hispanic population has remained relatively stable, decreasing slightly from 14% to 10%.