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ACSIOM

Accessory Dwelling Unit

Available2026 Featured Model

ACSIOM 749

749 sq ft · 2 Bedrooms · 2 Bathrooms · Three Exterior Design Options

The ACSIOM 749 is the 2026 featured model: a 749 sq ft, two-bedroom, two-bath ADU offered in three exterior design options and three available exterior colors (Y050, Y070, Y066). A single-level plan places living, dining, and kitchen at the center, with a bedroom suite at each end.

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Gallery

Renderings & Drawings

Renderings are illustrative — final materials, colors, and finishes for the ACSIOM 749 are confirmed during consultation. Plan drawings are reproduced from the official documents.

Front rendering of the ACSIOM 749: a single-level ADU with white horizontal siding, a black shed roof, black-framed windows, and a paved path to the entry door.
Exterior rendering — illustrative
Straight-on front rendering of the ACSIOM 749 in a landscaped garden: white horizontal siding, a black roof, a centered dark entry door with black-framed windows on either side, a paved path, a patio seating area, and raised planting beds.
Exterior rendering — illustrative
Rear rendering of the ACSIOM 749 showing the raised clerestory window band above the shed roof, white horizontal siding, a side entry door, and planted beds along the wall.
Exterior rendering — illustrative
ACSIOM 749 front rendering in a dark brown horizontal siding finish.
Exterior rendering — illustrative
ACSIOM 749 front rendering in a white horizontal siding finish.
Exterior rendering — illustrative
ACSIOM 749 front rendering in a warm natural-wood-tone horizontal siding finish.
Exterior rendering — illustrative
ACSIOM 749 furnished floor plan, 749 sq ft: a central living room, dining area, and kitchen, with a bedroom and bathroom at each end, a laundry closet, and a walk-in closet off the primary bedroom.
Floor plan — per official drawing

Architecture

Architectural Collections

ACSIOM homes are designed within three architectural collections. The exterior options currently offered for the ACSIOM 749 are listed below.

Modern

Low-slope rooflines, clean uninterrupted lines, and generously proportioned windows.

  • Low-slope roofline
  • Clean lines
  • Larger window proportions

Contemporary

Gabled rooflines, balanced window patterns, and warm material palettes.

  • Gabled roofline
  • Balanced window patterns
  • Warm materials

Traditional

Steeper rooflines, classical proportions, and refined flat trim details.

  • Steeper roofline
  • Classical proportions
  • Refined flat trim

Exterior Design Options

The ACSIOM 749 is offered in three exterior design options.

  • Option 1
  • Option 2
  • Option 3

Available exterior colors: Y050, Y070, Y066

Renderings are for presentation and comparison. Screen calibration, lighting, and production batches can shift color; final colors are confirmed against physical samples before order.

Exterior Materials

Exterior cladding under evaluation

The exterior cladding under evaluation for the ACSIOM 749 is a fiber cement siding board. The information below summarizes the supplier’s product literature and a third-party test report; it describes candidate material only and is not a confirmed ACSIOM 749 specification.

Fiber cement cladding — supplier description

According to the supplier’s literature, the board is a fiber cement panel produced with an additional pressing process and autoclaved (high-temperature, high-pressure steam curing) to form a wood-grain surface. The supplier lists the raw materials as virgin wood pulp, Portland cement, and fine quartz sand, and states that the product is 100% asbestos-free.

The supplier describes a wood-grain finish and two installation methods: a lapped (overlapping) layout and a clip-fastened flat layout.

Lapped siding (reference)
200 mm × 3,000 mm · 7.5 mm standard; 9 / 10 / 12 mm on request
Clip-fastened siding (reference)
200 mm × 3,000 mm · 12 mm

The supplier’s literature also lists fire, moisture, mold, and termite resistance, freeze–thaw durability, and heat–rain stability, and references a number of domestic and international standards. These are supplier claims and have not been independently verified by ACSIOM.

Third-party test report — summary

A test report issued by an independent laboratory covers fiber cement board submitted by the supplier. The report lists the test standards as ASTM C1185-08 (2016) and ASTM C1186-2022.

Thicknesses of 6, 8, 9, 12, 15, 16, and 18 mm were within scope; the principal performance tests were run on 6 mm and 18 mm samples. Flexural strength, length/width tolerance, thickness tolerance, squareness, edge straightness, surface quality, water tightness, freeze–thaw, warm water, and heat–rain items are reported as Pass.

Standards listed
ASTM C1185-08 (2016); ASTM C1186-2022
Surface burning (ASTM E84, 6 mm sample)
Flame Spread Index 0 · Smoke Developed Index 0
Board type
Described as Type A board for exterior walls and ceilings (classification includes applicant-declared information)

This is a test report, not a certification. Its results apply only to the samples tested and do not indicate that the product is enrolled in any laboratory certification program. The report is not published here. The relationship between the tested samples and the specific board, thickness, formulation, coating, and production batch used on the ACSIOM 749 has not yet been confirmed.

Final exterior material selection — including board type, thickness, installation system, coating, color, supplier model, and warranty — is confirmed by ACSIOM’s product and engineering team before order. Nothing on this page should be read as a performance guarantee for a delivered home.

Interior Experience

Three interior experiences

The ACSIOM 749 is offered in three interior experiences — from a considered baseline to premium materials with integrated technology.

01

Core

Essential comfort and efficiency — a complete, considered baseline.

02

Select

Elevated materials and finishes throughout the home.

03

Signature

Premium materials paired with integrated technology.

Smart Living

Designed for intelligent living

Smart Living capabilities designed to make the ACSIOM 749 efficient, secure, and effortless to live in.

  • Smart Climate

    Coordinated heating and cooling designed to keep the home comfortable efficiently.

  • Auto Scheduling

    Routines for lighting, climate, and energy that follow how you live.

  • Voice Control

    Hands-free control of everyday home functions.

  • Guest Access

    Managed entry for guests, tenants, and service visits.

  • Energy Saving

    Energy monitoring and optimization across the home’s systems.

  • Security Monitoring

    Integrated monitoring designed for peace of mind at home or away.

Feature availability is confirmed for your model during consultation.

Downloads

Documents

Brochure, specification, and plan documents for the ACSIOM 749. Files still in preparation will be published here.

FAQ

Common questions

Where we serve, permits, timing, pricing, and rental use — the questions that come up while planning.

Where does ACSIOM currently serve?

ACSIOM is rooted in California’s Silicon Valley. Service availability for your specific location is confirmed during the consultation and site review process — please reach out with your project ZIP code and we’ll advise on your area.

Who handles permits and approvals?

Permitting requirements vary significantly by city and county. Responsibilities for permits, site work, and construction are defined for each project during the site and regulatory review, so you’ll know exactly who handles what before any agreement is made.

How long does it take to build an ACSIOM home?

Timelines depend on your site, local permitting requirements, and the model and configuration you choose. During your consultation and site review, we walk through the stages of your specific project — from qualification and permitting through production and delivery — so you have a realistic picture before committing.

How do pricing and deposits work?

Pricing is provided through consultation, based on your model, configuration, and site conditions. When a project moves forward, any deposit is handled through Stripe’s secure hosted checkout — ACSIOM never stores your card details — and the applicable refund and cancellation policy is shared with you in writing before any payment.

Can I use an ACSIOM home as a rental or investment property?

Many homeowners consider ADUs and small homes for long-term rental or multigenerational living. Whether that works for your property depends on local zoning and regulations, which are looked at as part of the site and regulatory review step. Our team can discuss how different models fit rental and investment scenarios during your consultation.

All questions

Explore

Other models to consider

More ADUs and small homes from the ACSIOM range — each offered in the Core, Select, and Signature interior experiences.

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Request information about the 749

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Next Step

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Tell us about your property and goals — we’ll help you understand whether the ACSIOM 749 is the right fit.

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