KRDB

03/12/2026

Continuing the infill lot typology explorations. We have been working on a two-story ADU that would have tuck under parking and were approached by someone with a hillside site where it works perfectly. 1300 ft.² two bedroom 2 1/2 bath.

02/12/2026

We’ve been studying what small-lot infill could realistically look like under Austin’s HOME Phase 2 ordinance. This test fit uses 35’ x 90’ lots (3,150 SF each) on a one-acre parcel, which yields 12 units per acre.

For context, most traditional Austin single-family neighborhoods sit closer to 4–6 units per acre. So this is at least double — sometimes triple — the typical density, but still delivered as fee-simple homes.

The key move isn’t just shrinking the lots. Instead of giving every house its own curb cut, we’re consolidating access with joint driveways and shared drive aisles. That reduces paved area, keeps the streetscape greener, and makes the sidewalk experience feel continuous rather than driveway-dominated.

HOME 2 technically allows lots down to 1,800 SF, but in practice we’re finding that 35 feet of width gives you better proportions, workable parking geometry, and outdoor space that people will actually use. It feels intentional rather than squeezed.

These would be built as volumetric modular through ma modular — which is what makes this density repeatable. Factory-built units, predictable costs, shorter timelines. The goal isn’t just to show that higher density is allowed. It’s to demonstrate that it can be delivered at scale without losing neighborhood character.

Still testing the edges of where the sweet spot is — but 12 units per acre, done this way, feels like a meaningful shift for Austin.

02/02/2026

A smarter approach to urban infill.
In Austin, a new local housing policy (called HOME) allows more homes on traditional single-family lots. But density alone isn’t the goal—how you arrange those homes matters.
For mid-block sites, three identical units on the street can create real challenges: circulation, parking, privacy, and outdoor space. Our solution is a side-by-side townhouse strategy paired with an elevated rear ADU with parking underneath.
•Two ~1,800 SF townhomes engage the street.
•The ADU lives quietly at the back.
•And the townhomes still get real backyards.
Thoughtful density > maximum density.

01/28/2026

Three homes. One lot. Zero compromise.

This latest HOME infill project shows what’s possible when progressive land-use policy meets design-forward modular construction. By pairing Austin’s HOME ordinance with factory-built precision from StudioBuilt, we were able to deliver high-quality, modern housing at an urban scale that actually fits the neighborhood.

Design-build by KRDB / ma modular.

09/23/2025

Some details at our Robbins Modular project. Custom perforated panels go in next.

08/20/2025

We are creating a series of videos on modular design and construction and episode #1 is hot off the presses! Go inside the factory and see how the fabrication of our Robbins Place modular project happened. Joe Butler and the Studiobuilt team at work.

This video is an in-depth look at how modular houses are fabricated in the factory. Thanks to Studiobuilt and Mark for giving us the tour!

08/15/2025

About to start factory fabrication and foundations for this modular family compound in East Austin. Our second fab with Studiobuilt.

06/24/2025

ma founder and principal, Chris Krager talks about the genesis of KRDB and ma modular on the "Market Pulse" podcast.

Podcast Episode · SmartTouch Market Pulse · 06/24/2025 · 36m

03/12/2025

We will be at the Austin Build Expo, March 19th and 20th at the Palmer Events Center in Austin Texas with our new manufacturing partner, Studiobuilt. Visit booth 136 to discuss your potential modular project with ma founder Chris Krager and head of scattered site housing for Amherst/Studiobuilt, Joe Butler.

01/29/2025

Whether it's in the city, or in the mountains, ma modular has the ADU, cabin or granny-flat for you. Email us today at [email protected] to see if ma is right for your site.

01/12/2025

Nice article about a project we have on the boards, a modular family compound for three generations in East Austin.

Three houses and a shared accessory building make up this innovative use of an infill lot in central Austin