345 to 990 Sq Ft · Built by R&M

Casita & ADU Floor Plans: 5 Ready-to-Build Designs

Five layouts, from a 345 sq ft studio to a 990 sq ft two-bedroom, two-bath casita. Pick the one that fits your lot and request pricing. We build it, permits included.

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Call us to talk through your project, or email us and we'll get back to you.

Call (602) 671-9835info@rmconstructionaz.com

Office hours: Mon to Fri 8 AM to 6 PM, Sat 8 AM to 2 PM

The five designs

The 345 casita design: elevations and floor plan, 345 sq ft

The 345

Size
345 sq ft
Footprint
15' 8" x 22' 0"
Bedrooms
Studio
Baths
1 bath

One open living and sleeping room, a kitchenette, a full bath with a walk-in shower, and double entry doors.

Request pricing for The 345
The 492 casita design: elevations and floor plan, 492 sq ft

The 492

Size
492 sq ft
Footprint
20' 6" x 24' 0"
Bedrooms
1 bedroom
Baths
1 bath

A separate bedroom with a closet, a living room, an eat-in kitchen and a full bath.

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The 720 casita design: elevations and floor plan, 720 sq ft

The 720

Size
720 sq ft
Footprint
36' 6" x 24' 11"
Bedrooms
No bedroom
Baths
1 bath

An open kitchen and living space with an island, a game room, a storage room, a full bath, a covered deck and a covered porch.

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The 864 casita design: elevations and floor plan, 864 sq ft

The 864

Size
864 sq ft
Footprint
32' 0" x 24' 0"
Bedrooms
1 bedroom
Baths
1 bath + powder room

A primary bedroom with a walk-in closet and its own bath, a powder room, a kitchen with an island and pantry, a living room, a covered patio and a covered porch.

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The 990 casita design: elevations and floor plan, 990 sq ft

The 990

Size
990 sq ft
Footprint
33' 0" x 30' 0"
Bedrooms
2 bedrooms
Baths
2 baths

Two bedrooms with walk-in closets, two full baths, and an open kitchen, dining and living area.

Request pricing for The 990

Want to know what drives the price? See what a casita costs to build, or go back to our casita builder page.

Questions about our casita plans

Can I customize one of these designs?

Tell us what you'd like to change when you request pricing. Larger changes become a custom design, which we quote separately.

Which design is right for my lot?

It depends on your lot size, setbacks and where utilities can run. We check that before you commit to a design.

Do the prices include permits?

We pull the permits as part of the build. Your quote shows what's included for your lot.

Client Reviews

What our clients say

"We hired R&M to build a casita for us and the experience was excellent from start to finish. Ramiro and his team handled everything- design, permits, construction, which made the whole process smooth and stress-free. They turned our vision into a reality. We were on a schedule and the project was completed in about 7 months, and the quality of work and communication throughout was outstanding. If you're looking to build a casita, I highly recommend!"
JJenny H.Google review · January 2026 · Casita build
"Fantastic work by Ramiro and team. They provided a competitive quote. They helped with the process of permitting and HOA approvals. They provided a clear quote. He stayed in constant contact to keep us informed of progress. He made sure that quality work was done in every aspect. We converted a part of our home into an ADU and have since moved in. We are extremely happy with the finished product!"
JJim C.Google review · December 2025 · ADU conversion

Found a design you like?

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Find Us

Proudly Serving Metro Phoenix & Maricopa County

Based in Laveen, we build across Phoenix and the West Valley: Avondale, Goodyear, Buckeye, Glendale and Peoria. We also take projects in Scottsdale, Mesa, Tempe, Chandler, Gilbert and across Maricopa County.

Call or request a project consultation. We build ADUs, custom homes, and additions across the Valley.

Office & Staging Location

10022 S 37th Ave, Laveen, AZ 85339

Hours of Operation
  • Monday - Friday8:00 AM to 6:00 PM
  • Saturday8:00 AM to 2:00 PM
  • SundayClosed

R&M Construction & Development

5.0
on Google

Licensed Residential & Commercial Builder

AZ ROC #363967 · 10 years in business · Locally owned

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