This is the first Detached Sonoran ADU to be constructed in the City of Tucson. Designed with both the self-builder and professional contractor in mind, this project is intended to be accessible and adaptable for either approach. This Barrio ADU is being self-built by Silva+Havens. 


20260417-Detached-Sonoran-ADU_02956
_DSC5281
20260417-Detached-Sonoran-ADU_01157

Location: Tucson, Arizona

Typology: Accessory Dwelling Unit / Model Plan Library

Size: 646 SF (1 BD / 1 BA) 

Status: Built / Pre-Approved Model Plan

Project Description
The Detached Sonoran ADU translates the vernacular logic of historic Sonoran adobe architecture into a modern, energy-efficient building system designed for the desert southwest. Developed initially for the City of Tucson’s ADU Model Plan Library, the project reimagines how modest infill housing can enhance existing urban lots while honoring local vernacular traditions. 

20260417-Detached-Sonoran-ADU_00945
20260417-Detached-Sonoran-ADU_02559
20260417-Detached-Sonoran-ADU_01599
20260417-Detached-Sonoran-ADU_01480
20260417-Detached-Sonoran-ADU_00973
20260417 Detached Sonoran ADU_00132
20260417-Detached-Sonoran-ADU_02580
20260417-Detached-Sonoran-ADU_01958
20260417-Detached-Sonoran-ADU_01783
20260417-Detached-Sonoran-ADU_02685
20260417-Detached-Sonoran-ADU_01530
20260417-Detached-Sonoran-ADU_02649
20260417-Detached-Sonoran-ADU_00703
20260417-Detached-Sonoran-ADU_00107
20260417-Detached-Sonoran-ADU_00092
20260417-Detached-Sonoran-ADU_00010
20260417-Detached-Sonoran-ADU_00025
20260417-Detached-Sonoran-ADU_02854

13 August 2025 - Solar Panel Installation

_DSC0964
_DSC0942
_DSC0940
_DSC0972
_DSC1016
_DSC0974
_DSC1002
_DSC1096
_DSC1197

25 July 2025 - Passed Final Inspection

_DSC9299
_DSC9283
_DSC9336
_DSC9319
_DSC9314

29 June 2025 - Finishes

_DSC8350
_DSC8356_1
_DSC8334
_DSC8368
_DSC8371
_DSC8298
_DSC8290
_DSC8328
_DSC8306
_DSC5177
_DSC5129

27 May 2025 - Metal Roof Installation, Kitchen, and Finishes.

_DSC5091
_DSC5077
_DSC5095
_DSC5119
_DSC5072
_DSC5054_2
_DSC5046
_DSC5028
_DSC5027

07 May 2025 - Tile - In addition to the ADU, we are currently building the SHED to house the laundry, bicycles, and tools.

_DSC4553
_DSC4421
_DSC4440
_DSC4454
_DSC4420
_DSC4433
_DSC4495
_DSC4461

30 April 2025 - Plaster

_DSC4413
_DSC4403
_DSC4390
_DSC4264
_DSC4312
_DSC4247
_DSC4254
_DSC4373
_DSC4369
_DSC4322
_DSC4282
_DSC4219
_DSC4288
_DSC4080
_DSC3974
_DSC3918
_DSC3972
_DSC3824
_DSC3814
_DSC3793

29 April 2025 - Plaster

_DSC3745_1
_DSC3459
_DSC3521
_DSC3469
_DSC3558
_DSC3389
_DSC3548
_DSC3247
_DSC3204
_DSC3137

24 April 2025 - Plaster

_DSC2955
_DSC2966
_DSC2978
_DSC2936
_DSC2859
_DSC2827
_DSC2825
_DSC2808
20250424_HAVENS_ADU_00377
20250424_HAVENS_ADU_00341
20250424_HAVENS_ADU_00207
20250424_HAVENS_ADU_00184
20250424_HAVENS_ADU_00165
20250424_HAVENS_ADU_00026
20250424_HAVENS_ADU_00077
20250424_HAVENS_ADU_00152
20250424_HAVENS_ADU_00136

09 April 2025 - Install Windows, AC, Vent fans, etc.

_DSC8812
_DSC8821
_DSC8815
_DSC8798
_DSC8802
_DSC8788
_DSC8825

22 March 2025 - Connect Sewer Line & Graywater Line with Diverter Valve

20250322_ADU_00024
20250322_ADU_00031
20250322_ADU_00063
20250322_ADU00019
20250322_ADU00006
20250322_ADU_00043

18 March 2025 - Install Solar Panel Infrastructure.

_DSC7216
_DSC7189
_DSC7210
_DSC7201
_DSC7214

13 March 2025 - Passed intermediate inspections.

_DSC7146
_DSC7136
_DSC7140
_DSC7020
_DSC7034
_DSC6962
_DSC7011
_DSC7023

5 February 2025 - Electric

20250305_ADU_Kroeger_00176
20250305_ADU_Kroeger_00128
20250305_ADU_Kroeger_00121
20250305_ADU_Kroeger_00035
20250305_ADU_Kroeger_00012
20250305_ADU_Kroeger_00029
20250305_ADU_Kroeger_00150
20250305_ADU_Kroeger_00022

18 February 2025 - Roof Framing and Plumbing Rough

20250219_ADU_00115
20250219_ADU_00100
20250219_ADU_00093
20250219_ADU_00053
20250219_ADU_00059
20250219_ADU_00038
_DSC5061
_DSC5087
_DSC5110
_DSC5038
_DSC3265
_DSC3253
_DSC3189
_DSC3222
_DSC3086
_DSC3103
_DSC3121
_DSC3149

29 January 2025 - Second Grout Pour

20250129_Havens_ADU_00174
20250129_Havens_ADU_00168
20250129_Havens_ADU_00135
20250129_Havens_ADU_00142
20250129_Havens_ADU_00091
20250129_Havens_ADU_00072
20250129_Havens_ADU_00042
20250129_Havens_ADU_00057
20250129_Havens_ADU_00078
20250129_Havens_ADU_00024
20250129_Havens_ADU_00021
20250129_Havens_ADU_00018
20250129_Havens_ADU_00010
20250129_Havens_ADU_00004

20 January 2025 - First grout pour

20250120_ADU_00129
20250120_ADU_00088
20250120_ADU_00060
20250120_ADU_00107
20250120_ADU_00026
20250120_ADU_00033
20250120_ADU_00138

08 January 2025 - 8' stacked for first grout

_DSC9453
_DSC9438
_DSC9472
_DSC9433
_DSC9448
_DSC9493
20250109_ADU_HAVENS00020
20250109_ADU_HAVENS00006
_DSC9457
_DSC9410
_DSC9392
_DSC9401

02 January 2025 - Concrete Pour

ADU_HAVENS_CONCRETE_00505
ADU_HAVENS_CONCRETE_00472
ADU_HAVENS_CONCRETE_00419
ADU_HAVENS_CONCRETE_00467
ADU_HAVENS_CONCRETE_00425
ADU_HAVENS_CONCRETE_00250
ADU_HAVENS_CONCRETE_00311
ADU_HAVENS_CONCRETE_00300
ADU_HAVENS_CONCRETE_00285
ADU_HAVENS_CONCRETE_00244
ADU_HAVENS_CONCRETE_00205
ADU_HAVENS_CONCRETE_00064
ADU_HAVENS_CONCRETE_00058

28 December 2024 - Pre-Slab inspection passed

_DSC8613
_DSC8603
_DSC8589
_DSC8584

12 December 2024 - First inspection passed - Rough Soil

20241211_Havens_Detached Sonoran00130
20241211_Havens_Detached Sonoran00118
20241211_Havens_Detached Sonoran00132
20241211_Havens_Detached Sonoran00078
20241211_Havens_Detached Sonoran00038
20241211_Havens_Detached Sonoran00012
_DSC6902
_DSC6642
_DSC6620
_DSC6573
_DSC6511
_DSC6527
_DSC6523

25 November 2024 - Permit approved and marking of the footprint for the Detached Sonoran ADU in preparation for digging footers.

_DSC6394
_DSC6437
_DSC6424
_DSC6419
_DSC6425

You cannot copy content of this page