The argument that increased supply of urban housing will lower prices is rapidly being disproved by successive waves of gentrification throughout American cities. Stephen Smith offers a considered analysis of the economics behind this dynamic.
For the original, and often poor residents of newly gentrifying neighborhoods, the market remedy of increasingly supply doesn't make anything cheaper. Rather, they find themselves pushed out by the increased cost of housing, and amenities.
Smith believes that price increases respond to new amenities along an S-curve. "The first 100-unit rental building with the neighborhood's first high-quality grocery story is a huge boon, but the hundredth glass tower with the neighborhood's fifth bank won't even be noticed. It's at this point that the price-lowering effect of dumping new units on the market will outweigh the price-raising effect of the new amenities – in other words, prices will start to fall."
The problem is that once a neighborhood has all its amenities, new housing construction is ground to a halt by a NIMBY shield and any remaining original homeowners who are unlikely to allow their home values to fall.
FULL STORY: Does Urban Growth Have To Mean Gentrification

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto
The Tesla Cybertruck was recalled seven times last year.

National Parks Layoffs Will Cause Communities to Lose Billions
Thousands of essential park workers were laid off this week, just before the busy spring break season.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50
A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

Test News Post 1
This is a summary

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto
The Tesla Cybertruck was recalled seven times last year.

Test News Headline 46
Test for the image on the front page.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
EMC Planning Group, Inc.
Planetizen
Planetizen
Mpact (formerly Rail~Volution)
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research
NYU Wagner Graduate School of Public Service