Updated: Dec 17, 2025
Location and Projects
Address
528 W 1st Ave, Denver, CO, 80223
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Radix Design Photos
Radix Design Construction
Radix Design is a small architecture firm based in the historic Baker neighborhood of Denver, Colorado.
The word ‘radix’ is Latin for a root vegetable - for instance, a carrot or a radish. ‘Radix’ is also used in mathematics for the root or base of a number system.
In design, Radix stands for an architecture that is rooted in place, at home in the dirt; simple, elegant, and green.
Radix Design was founded in 2016 by Colorado architect Ozi Friedrich. Ozi's experience includes award-winning projects at scales ranging from small renovations to 100-unit affordable housing developments.
Radix Design has based its business practices on B-Corp principles to help embed responsible and sustainable practices at every level.
RADIX DESIGN takes inspiration from the principles of Slow Food movement: GOOD, CLEAN, and FAIR.
GOOD: Architecture of quality, beauty, and warmth.
CLEAN: Architecture which is healthy and beneficial for its inhabitants.
FAIR: Architecture that benefits the place around it - street, neighborhood, city, land, and people.
From BuildZoom:
Radix Design at 528 W 1st Ave, Denver, CO 80223, (Employee: Ozi Friedrich) has a BuildZoom score of 115 and ranks in the top 2% of 55,949 Colorado contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our bidding system to be easily matched to qualified, licensed professionals in your area.
Radix Design Services
Start a project today:
Radix Design Contact Information
Phone Number: (720) 432-5528
Address: 528 W 1st Ave, Denver, CO 80223
Radix Design Denver
Quality
115
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Radix Design has a BuildZoom score of 115, which places them above 98% of 55,949 contractors in Colorado.
Activity
|
12 projects
|
2025 |
|
12 projects
|
2024 |
|
9 projects
|
2023 |
Our building permit records indicate that Radix Design has worked on at least
33.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
11 projects
|
Home Additions |
|
10 projects
|
New Constructions |
|
10 projects
|
Multi-room remodels |
Analyzing permits over the last 4 years shows that Radix Design mostly works on
home addition
and multi-room remodel
projects.
Pricing
|
2 projects
|
< $5k |
|
1 project
|
$5k-$20k |
|
7 projects
|
$50k-$100k |
|
11 projects
|
$100k-$250k |
|
5 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $112,760. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
New accessory dwelling unit behind the primary house 1603 s quitman st. this is an affordable adu by the wdrc program.https://denver-prod-av.accela.com/portlets/cap/capdetail.do?mode=view&isredirect=false&module=development#
Valuation:
$129,597
Permit #:
2025-ZONE-0001434
Status:
filed
Fee:
$215
Permit Type:
N/A
Building Type:
N/A
New accessory dwelling unit behind the primary house 1603 s quitman st. this is an affordable adu by the wdrc program.https://denver-prod-av.accela.com/portlets/cap/capdetail.do?mode=view&isredirect=false&module=development#
Valuation:
$109,200
Permit #:
2025-LOG-0002958
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Requesting zoning only review - need to start the zoning-only review because the project needs an administrative adjustment which was recommended by landmarks as part of our landmarks review. zoning admin is taking 2-3 months to process admin adjustments these days so we need to start that process as soon as possible see email chain attached in documents. the proposed project is an ad... see more
Valuation:
$200,000
Permit #:
2024-LOG-0012400
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
The proposed project is a new-build all electric 70-unit permanent supportive housing development. the development is based upon the principals of trauma informed design and includes supportive services for tenants
Valuation:
$20,599,950
Permit #:
2024-LOG-0009930
Status:
plancheck
Fee:
$38,463
Permit Type:
N/A
Building Type:
N/A
New accessory dwelling unit behind the primary house 1603 s quitman st. this is an affordable adu by the wdrc program.https://denver-prod-av.accela.com/portlets/cap/capdetail.do?mode=view&isredirect=false&module=development#
Valuation:
N/A
Permit #:
2025-RESCON-0001171
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 2-story detached accessory dwelling unit at the rear of the lot. the adu is a pre-designed model g via the west denver renaissance collective. the assigned address is 1370.5 n quitman st
Valuation:
$292,446
Permit #:
2024-ZONE-0002082
Status:
filed
Fee:
$297
Permit Type:
N/A
Building Type:
N/A
295 n banock st - single family residence - proposed adu zoning this is a zoning only submittal in order to initiate the administrative adjustment process for a bulk plane encroachment on a proposed accessory dwelling unit
Valuation:
$1
Permit #:
2025-LOG-0004323
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Zoning-only review: the proposed project is a new-build tandem house that has been designed to resemble an existing carriage-house at the same location. the demolition of the existing structure was approved by the landmark preservation commission under 2023-lmdemo-0000104. the design of the replacement structure was approved under 2023-coa-0000352. the landmark preservation commission... see more
Valuation:
$415,000
Permit #:
2023-LOG-0010850
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Proposed addition/renovation project in a landmark district
Valuation:
$402,000
Permit #:
2025-LOG-0004246
Status:
approved
Fee:
$1,231
Permit Type:
N/A
Building Type:
N/A
This is a plan modification to the previously approved shoring plans for the 501 lafayette addition-renovation. the previously submitted shoring plans showed (6) pilings in a n-s line between the addition and the original house. the shoring engineer subsequently determined that these (6) piers are not necessary because the existing house has a basement. the plan still shows (20) piers... see more
Valuation:
N/A
Permit #:
2025-LOG-0009946
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New accessory dwelling unit at rear of 2625 s zurich ct. this adu is affordable housing under the wdrc program
Valuation:
$141,200
Permit #:
2025-ZONE-0000873
Status:
approved
Fee:
$221
Permit Type:
N/A
Building Type:
N/A
New detached garage at 118 w ellsworth ave. the garage includes a non-inhabitable green roof and is semi-conditioned to include a restroom with utility sink. this project was initially reviewed under a zoning-only submittal under 2022-log-0006213. it has received a landmark certificate of appropriateness and an administrative adjustment for bulk plane encroachment
Valuation:
$96,000
Permit #:
2023-LOG-0004593
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2545 & 2545 1/2 marion st - single family residence - remode - new adu at the primary house the project renovates and existing non-inhabitable attic into and inhabitable bedroom bathroom and front walkout. at the rear the project constructs a new accessory dwelling unit
Valuation:
$240,000
Permit #:
2022-LOG-0007293
Status:
approved
Fee:
$777
Permit Type:
N/A
Building Type:
N/A
New accessory dwelling unit at rear of 2625 s zurich ct. this adu is affordable housing under the wdrc program
Valuation:
$109,200
Permit #:
2025-LOG-0001654
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 2-story detached accessory dwelling unit at the rear of the lot. the adu is a pre-designed model g via the west denver renaissance collective. the assigned address is 1370.5 n quitman st
Valuation:
$149,760
Permit #:
2024-LOG-0004296
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation-addition to an existing carriage-house at 1135 fillmore st. net increase of 132 sf floor area. also construction of new detached single-car garage
Valuation:
$234,000
Permit #:
2023-LOG-0004682
Status:
withdrawn
Fee:
$760
Permit Type:
N/A
Building Type:
N/A
245 w 2nd ave - single family residence - mod dwgs 23-rescon-286-structural this plan modification consists of emergency structural repairs for structural issues in the west and south walls. these repairs need to be carried out prior to the work under 2023-rescon-0003286. an expedited review is requested to allow the work to take place before winter weather
Valuation:
$93,500
Permit #:
2024-ZONE-0005045
Status:
approved
Fee:
$147
Permit Type:
N/A
Building Type:
N/A
245 w 2nd ave - single family residence - mod dwgs 23-rescon-286-structural this plan modification consists of emergency structural repairs for structural issues in the west and south walls. these repairs need to be carried out prior to the work under 2023-rescon-0003286. an expedited review is requested to allow the work to take place before winter weather
Valuation:
N/A
Permit #:
2024-RESCON-0003883
Status:
issued
Fee:
$728
Permit Type:
N/A
Building Type:
N/A
245 w 2nd ave - int & extension remodel-add porch 245 w 2nd ave - interior remodel - rear porch - garden wall - windows interior renovation with the following exterior alterations: • new back porch and garden wall • replacement of non-historic windows • basement egress window
Valuation:
$531,500
Permit #:
2023-LOG-0007345
Status:
approved
Fee:
$1,581
Permit Type:
N/A
Building Type:
N/A
1 043 sf upper-floor addition with miscellaneous renovations at the existing ground floor
Valuation:
$650,000
Permit #:
2023-LOG-0002930
Status:
approved
Fee:
$1,861
Permit Type:
N/A
Building Type:
N/A
Radix Design Reviews
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Radix Design License info
License Not Required
| Status | Not Required |
- BuildZoom verified in May, 2023 that this contractor does not need a license to be a contractor in Colorado.
This is a sample of licensing data; click here to access a complete history.
115
BuildZoom Score
32
Permits
- Building permit records show that Radix Design has worked on 32 permitted projects.
Radix Design Employees
OF
Ozi Friedrich
Architect/Owner