Minimum Lot Size in Houston: Maps to Protect Your Block

A few weeks ago, I attended a civic club meeting where we talked about minimum lot size restrictions. Many of my neighbors were concerned about townhouse developments in the neighborhood, and the City of Houston Planning Department was on hand to teach us how to apply for minimum lot size protection.

Minimum lot size restrictions are one of the few ways that Houstonians can prevent real estate developers from tearing down an old home, subdividing the lot, and building taller, denser housing in place.

For a lot of neighborhoods, this kind of dense development — specifically townhomes where single family homes used to stand — is not a welcome addition to the housing stock. It can put a strain on neighborhood infrastructure and lead to higher property taxes for the surrounding area.

minimum lot size townhomes midtown houston

This mural by Ack! shows gentrification concerns in midtown Houston.

Establishing a minimum lot size means that no one can subdivide their lot smaller than the agreed-upon minimum. In other words, it prevents the development of townhomes where single family homes used to stand. Instead, it should encourage development that more closely matches the existing housing stock.

Historically, minimum lot size restrictions have been used to discriminate against Black and/or lower income people. In many cases, the minimum lot size is established at an acre or more. In Houston, it is a planning tool used to abate the demolition of existing housing in favor of new construction townhomes. The minimum lot size is typically 5,000 – 10,000 square feet, and it is challenging to implement.

There are a couple of steps to obtain a minimum lot size restriction for your block:

  • First, contact the City of Houston Planning Department for guidance. They will manage most of the process for you.
  • You need to get signatures from 10% of the property owners in your area (for an area application) or five signatures of owners on your block/block face (for a block application).
  • There will be multiple notices to your neighbors, and if you’re filing an area application, there will be a community meeting and a public hearing.
  • There will be a protest period.
  • Ultimately, you’ll need at least 51% (for block protection) or 55% (for area protection) of the property owners in the zone to approve.

Once you obtain a minimum lot size restriction, it stays in effect for 40 years.

Since you need the signatures of property owners, I built these maps to help people know where the homeowners in their neighborhood live.

Homestead exemptions tell you where the owners live

Harris County Appraisal District (HCAD) provides a lot of data about property owners. If you own and live in a property, you qualify for a Residential Homestead exemption on your property taxes.

Most people take this exemption because it provides a 20% discount on property taxes. So it’s a great proxy to know whether the owner lives at the property. If you’re gathering signatures for a minimum lot size petition, this will help you know which doorbells to ring.

For the maps below, I used HCAD data to outline all parcels in red, filled in the lots with a homestead exemption in green, and overlaid minimum lot size restrictions from the City of Houston Planning Department in purple.

Only 70% of existing parcels need to meet the minimum lot size requirement

Not every lot in a designated zone needs to meet the minimum requirements. Using these maps, you can quickly spot odd sized parcels to determine if your target area meets the 70% threshold.

minimum lot size houston small parcel

Some neighborhoods are easier to analyze than others. Similar size parcels with high rates of homeownership are good conditions for minimum lot size protection.

minimum lot size houston uniform parcels

City of Houston Complete Communities

Last year, Houston’s mayor Sylvester Turner launched the Complete Communities initiative. The goal of this program is to prioritize improvements to Houston’s most vulnerable neighborhoods and residents. You can learn more about Complete Communities here.

Here are maps for each of the Complete Communities neighborhoods:

Other neighborhoods

As we field requests for other neighborhoods, I’ll add them to the list here.

Don’t forget to contact the Planning Department as you start to think about minimum lot sizes in your neighborhood.

Jeff Reichman

Jeff is passionate about data. He founded January Advisors, and serves on the board of two Houston nonprofits. Read his full bio on LinkedIn.