Allen Construction | Custom Home… Reviews (10)

Unit type	Typical size	Pricing
Studio / JADU	≤ 500 sq ft	Pricing locked — unlock to view
1-bedroom detached ADU	600–750 sq ft	Pricing locked — unlock to view
2-bedroom detached ADU	750–1,000 sq ft	Pricing locked — unlock to view
Garage conversion	400–600 sq ft	Pricing locked — unlock to view
Attached ADU	400–800 sq ft	Pricing locked — unlock to view

Unit type

Typical size

Pricing

Studio / JADU

≤ 500 sq ft

1-bedroom detached ADU

600–750 sq ft

2-bedroom detached ADU

750–1,000 sq ft

Garage conversion

400–600 sq ft

Attached ADU

400–800 sq ft

What Allen Construction | Custom Home Construction and Remodeling handles

Design & permitting

In-house design and full permit handling.

Architectural design & 3D renderings
Structural & Title 24 energy plans
City plan-check submittal & corrections

Construction

Turnkey ground-up and conversion builds.

Foundation & framing
Detached, attached & garage-conversion ADUs
Electrical, plumbing & HVAC

Financing

Guidance and lender introductions.

Renovation / construction-loan guidance
HELOC & cash-out refinance referrals
ADU-specific (after-build-value) lenders

Project types

ADU formats this builder takes on.

Detached ADU
Attached ADU
Garage / ADU conversion

Warranty & support

What's covered after move-in.

Workmanship warranty
Manufacturer materials warranties
Dedicated project manager

Verified

April 2025

Alian was a huge help!

Katie LaForge0 found this helpful

Verified

September 2022

I came for EV charging which is open to the public and posted on PlugShare app. They were very kind and courteous on the phone. I did not come as a construction client.

Jamie Ainsworth0 found this helpful

Verified

October 2020

We have been so fortunate to work with Ian Cronshaw -VP Allen Construction, and their amazing Team, on a number of projects the last few years. We cannot recommend Allen Construction more highly-they are a long standing, trusted, fair and reputable construction company and will deliver what you can dream and beyond! Thank you Allen Construction for the privilege of working with your fabulous Team!

Debra Henno0 found this helpful

Verified

August 2019

Ian, who has been with the company from the beginning, is awesome -- an expert in his field who provides excellent customer service.

Michele Weslander-Quaid0 found this helpful

Verified

July 2019

We're absolutely thrilled with our new kitchen, which exceeded our expectations.

Linda Stewart-Oaten0 found this helpful

Frequently asked questions about Allen Construction | Custom Home Construction and Remodeling

What does Allen Construction | Custom Home Construction and Remodeling offer?

Allen Construction | Custom Home Construction and Remodeling is a full-service ADU builder serving Santa Barbara, CA, handling design, permitting, and turnkey construction for detached ADUs, attached ADUs, garage conversions, and junior ADUs (JADUs). Allen Construction | Custom Home Construction and Remodeling holds a 5.0-star rating across 10 verified homeowner reviews.

Is Allen Construction | Custom Home Construction and Remodeling licensed and insured?

Yes. Allen Construction | Custom Home Construction and Remodeling holds an active CSLB license (503300), classified B - General Building Contractor, and is bonded and insured.

How much does Allen Construction | Custom Home Construction and Remodeling charge to build an ADU?

Allen Construction | Custom Home Construction and Remodeling prices every ADU per project — your cost depends on size, finishes, and site conditions. Garage conversions are the most affordable path; detached units cost more. Pricing is unlocked per project: request a quote to get Allen Construction | Custom Home Construction and Remodeling's exact, no-obligation estimate for your lot.

What areas does Allen Construction | Custom Home Construction and Remodeling serve?

Allen Construction | Custom Home Construction and Remodeling builds ADUs in Santa Barbara, Santa Barbara County.

How long does Allen Construction | Custom Home Construction and Remodeling take to build an ADU?

Most ADU projects run 6–12 months end to end — roughly 1–2 months for design and permitting (California caps plan check at 60 days for compliant units) and 4–8 months of construction. Allen Construction | Custom Home Construction and Remodeling confirms a timeline for your specific project during the feasibility consultation.

How do I get a quote from Allen Construction | Custom Home Construction and Remodeling?

Tap any "Get a Quote" button on this page to share a few details about your property and project. We'll confirm your service area, match you directly with Allen Construction | Custom Home Construction and Remodeling, and set up your free feasibility consultation — no obligation.

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