Below is a non-comprehensive list of communities that have limited house size in their own particular ways. Know of any others? Please contact us with details and we can add them to our list.

May 5, 2003: Aspen's rules set size limits in different districts with a sliding scale for each district. This newspaper article discusses Aspen's ordinances.

Read Aspen’s Land Use Code

Aspen, CO

January 2, 2010: Boulder, Colorado set size limits using "compatible development rules". Boulder created an online calculator that allows people to find out what is allowed on their site. This newspaper article discusses the rules.

View Boulder’s Compatible Development Worksheet

Boulder, CO

Chilmark’s large-house bylaw was prepared by the Chilmark Planning Board, which held dozens of public meetings over a year and a half. It was approved by a vote of 162-51 at the April 22, 2013, annual town meeting.

Read Chilmark’s Bylaw

Chilmark, MA

June 19, 2015: East Hampton Village, New York set a limit on house size. Their rules set a "maximum coverage" using a sliding scale based on lot size. They have a maximum limit of 20,000 square feet for residences regardless of lot size.

Read East Hampton’s Zoning Regulation

East Hampton, NY

On April 17, 2019 Honolulu City Council unanimously passed a bill that restricts homes from having a floor area greater than 70% of their lot’s size. The bill, which became law on May 1, 2019, also limits the amount of impervious surfaces to 75% of the lot size.

Read Honolulu’s Bill

Honolulu, HI

Los Angeles, CA

March, 2017: In an attempt to deal with a McMansions surge, Los Angeles passed new rules relating to house size. Their 200 foot exemption of attached garages from floor plan calculations may limit their effectiveness.

Read Los Angeles’ Ordinances

November 1, 2017:  The town of Mercer Island, Washington, passed regulations that limit house size and lot coverage while also increasing protection for trees and minimizing construction impacts.

Read Mercer Island’s Ordinance

Mercer Island, WA

2006: Pitkin County, Colorado set a maximum size limit of 5,750 square feet. However they have a "maximum absolute cap" of 15,000 square feet of floor space that can be attained by using transferable development rights (TDR). TDR's are designed to leave certain land undeveloped but compensates owners by transferring development rights to land designated for development. In other words, urban areas pay surrounding rural areas to remain undeveloped, in order to grow within their urban boundaries. Within Pitkin County, cities and incorporated areas have their own zoning rules so for example Aspen's house size limit is different. They further explain the logic behind TDR's on their website.

Read Pitkin County’s Land Use Code

Pitkin County, CO

In October 2018 Prairie Village City Council voted 11 to 2 to pass neighborhood design standards. The guidelines regulate impervious surface coverage, green space, foundation heights and garage size.

Read Prairie Village’s Neighborhood Design Standards

Prairie Village, KS

On November 5th, 2018 the province of British Columbia proposed new legislation that limits new homes built on farmland to 5,400 square feet. The law was adopted on December 18th, 2018.

Read Richmond’s Farmland Housing Regulations

Richmond, British Columbia

April 13, 2017: The Village of Southampton passed regulations that limit house size using a sliding scale based on lot size with a maximum total gross floor area of 18,000 square feet. 

Read Southampton’s Statute

Southampton, NY

Truro, MA

October 4, 2016: Truro Massachusetts limited house size in it's Seashore District. The group Save Truro Seashore screened One Big Home several times to galvanize support in the community and used Chilmark's bylaw as their model.

Read Truro's Bylaw