Case Study: 800 sq ft Detached ADU East Sacramento
Case Study: 800 sq ft Detached ADU East Sacramento — quick facts
How A1 Building Contractors built a 2-bed, 1-bath detached ADU in East Sacramento for $245k — generating $2,400/month in rental income. A1 Building Contractors LLC is a veteran-owned, licensed general contractor serving the greater Sacramento region. Every project starts with a review of the property, the local jurisdiction and the homeowner's goals.
- Licensed California general contractor — CSLB #1094366, DRE #00898265.
- Veteran-owned and based in Roseville, serving Sacramento, Placer and El Dorado counties.
- Scope covers detached ADUs, attached ADUs, JADUs, garage conversions, home additions and custom homes.
- Plans, permits, plan check and construction are coordinated in-house for Case Study: 800 sq ft Detached ADU East Sacramento.
- Typical detached ADU budgets run about $135K to $255K depending on size and site conditions.
Local guidance for Case Study: 800 sq ft Detached ADU East Sacramento
A1 Building Contractors LLC helps Sacramento-area and Placer County homeowners evaluate design, permitting, site access, utilities, construction scope and realistic project costs before work begins. Each project is reviewed against the property, local jurisdiction and homeowner goals rather than a one-size-fits-all estimate.
For Case Study: 800 sq ft Detached ADU East Sacramento, our team can explain practical options, likely approval steps and the tradeoffs that affect schedule and budget. Homeowners receive a clear path from initial feasibility through plans, permits and construction, with recommendations grounded in local building requirements and build conditions.
A productive first review considers available lot space, setbacks, access for construction, utility locations, desired square footage and long-term use. Those details help identify constraints early, compare appropriate project approaches and avoid spending on a design that does not fit the site or local rules. A1 then coordinates the applicable design and construction stages with clear decisions at each milestone.
Project snapshot: 800 sq ft Detached ADU in East Sacramento
How A1 Building Contractors built a 2-bed, 1-bath detached ADU in East Sacramento for $245k — generating $2,400/month in rental income.
- Location: Sacramento, CA
- Project type: Detached ADU Construction
- Investment: [object Object]
- Timeline: 34 weeks
The challenge
What the homeowners were working around before construction started in Sacramento.
- The homeowners wanted a long-term rental on a 5,200 sq ft East Sacramento lot — but the existing 1924 main house sat close to the rear setback, leaving a tight build envelope.
- Their goals: maximize rentable square footage without triggering a parking variance, keep the design cohesive with the historic neighborhood, and finish before the next school year so they could lock in a tenant.
What we built
The scope A1 Building Contractors designed, permitted and constructed under a single contract.
- We designed an 800 sq ft, 2-bedroom rear-yard ADU with a 4-foot side setback and a low-profile shed roof to stay under the 16-foot height limit. Pre-application meetings with City of Sacramento planning confirmed parking exemption under SB 9.
- Pre-fab roof trusses and a slab-on-grade foundation cut framing time by ~3 weeks. We trenched a new 1" water service and tied sewer into the existing lateral with a cleanout, avoiding a full street cut.
- Permits were issued in 11 weeks. Construction ran 8 months from groundbreak to final inspection — about 2 months faster than Sacramento's average detached ADU timeline.
The outcome
Measured results after final inspection and certificate of occupancy.
- Rented within 14 days of CO at $2,400/month — projected $28,800/year gross.
- County assessor recorded a $185,000 increase in assessed value.
- Estimated 7-year payback at current rents, then pure cash flow.
In the homeowner's words
A1 built a beautiful 800 sq ft ADU in our backyard. The entire process was smooth from permits to final walkthrough. We're now earning $2,400/month in rental income! — Verified client, Sacramento, CA
How we deliver Case Study: 800 sq ft Detached ADU East Sacramento
Every project runs through the same five-stage process, so you know what happens next and what it costs before construction starts. We handle design, engineering, jurisdictional plan check and construction under one contract, which keeps the schedule and the budget with a single accountable team.
- Stage 1 — Site walk and feasibility: setbacks, utilities, easements and lot coverage reviewed on site
- Stage 2 — Fixed-scope proposal: line-item pricing with permits, utility connections and finishes included
- Stage 3 — Design and engineering: architectural plans, Title 24 energy calcs and structural engineering
- Stage 4 — Permitting and plan check: submittal, corrections and approvals handled by our office
- Stage 5 — Construction and closeout: weekly updates, final inspection, certificate of occupancy and warranty
Why homeowners choose A1 for Case Study: 800 sq ft Detached ADU East Sacramento
A1 Building Contractors LLC is a veteran-owned, CSLB-licensed general contractor serving the greater Sacramento region. We design, permit and build ADUs, garage conversions, home additions and custom homes across the Sacramento region, with transparent line-item pricing and a single point of contact from first site walk to final inspection.
- CSLB #1094366 General Contractor · DRE #00898265 Broker
- Serving Sacramento, Placer, El Dorado, Yolo and Sutter counties
- In-house design, permitting, plan check and construction
- Call (866) 797-7653 for a same-day callback