How much does an Addition cost?

That’s usually the first question. The answer depends on a lot of factors, but instead of guessing, we’ve put together real project cost breakdowns so you can see what these projects actually look like.

Featured Additions

Project Gallery

To See Some Real Examples, Browse our Additions Portfolio.

Kitchen Remodel & Addition in Scottsdale, AZ2026-04-01T01:22:13+00:00
Scottsdale kitchen remodel with long galley layout and island sink view

Kitchen Remodel & Addition in Scottsdale, AZ

,
Backyard Pergola Addition in Phoenix AZ2026-03-31T23:52:45+00:00

Backyard Pergola Addition in Phoenix AZ

,
Attached Casita Addition in Glendale AZ2026-03-30T21:36:29+00:00
Casita exterior side view showing stucco walls, mini split condenser, electrical panel, and paver walkway

Attached Casita Addition in Glendale AZ

,
Backyard Patio in Phoenix, AZ2025-04-21T18:12:20+00:00

Backyard Patio in Phoenix, AZ

,
Backyard Casita in Phoenix, AZ2025-04-14T03:46:56+00:00

Backyard Casita in Phoenix, AZ

,
2-Story Guest House Addition in Peoria, AZ2026-03-30T23:40:24+00:00
Backyard pergola leading to sliding glass doors in a two-story home.

2-Story Guest House Addition in Peoria, AZ

,
Attached Carport Addition in Phoenix, AZ2025-01-29T04:51:23+00:00
Finished carport addition view from the side of the yard

Attached Carport Addition in Phoenix, AZ

Complete Home Remodel and Addition in Phoenix, AZ2025-01-29T04:45:59+00:00

Complete Home Remodel and Addition in Phoenix, AZ

,
New Guest House Build in Peoria, AZ2026-03-30T21:47:13+00:00

New Guest House Build in Peoria, AZ

Bathroom Renovation and Addition Glendale, AZ2026-03-30T21:23:40+00:00
New bathroom addition with glass-enclosed shower, pebble tile floor, white vanity, and open wood shelving

Bathroom Renovation and Addition Glendale, AZ

,
Bedroom Addition Glendale, AZ2026-03-30T19:39:17+00:00

Bedroom Addition Glendale, AZ

Detached Garage Addition Mesa, AZ2026-03-30T21:10:23+00:00

Detached Garage Addition Mesa, AZ

Garage Addition Scottsdale, AZ2026-03-30T20:32:58+00:00

Garage Addition Scottsdale, AZ

RV Garage & Bathroom Addition Glendale, AZ2026-03-30T20:55:12+00:00

RV Garage & Bathroom Addition Glendale, AZ

Backyard Addition in Phoenix, AZ2025-07-03T15:29:55+00:00

Backyard Addition in Phoenix, AZ

Additions: Built Different

STEP 1

FEASIBILITY SURVEY

This is the key to answering the fundamental question: Can we build this?

Cost: For $3,000, here’s what is included:

This is a detailed plan of what your structure currently looks like. With this, we can ensure the addition doesn’t look like an addition, but rather flows into the existing structure.

3D scanning captures incredibly detailed and accurate information about your space. The scan creates a digital model, which can be used for various purposes, from design and planning to documentation and as-built drawings.

Click here to see a sample 3d walk-through.

This is what your addition will look like when completed and ensures that your vision is translated into a tangible and aesthetically pleasing reality.

Digital pictures of the outside as renovated and is needed for the architectural submittal with most HOA’s.

Setbacks ensure that buildings are positioned at a specified distance from property lines as determined by the city you live in.

Click below for full sized images

STEP 2

PLANS & ENGINEERING

Lets Go!!!

Cost: $10,000 retainer

During the plans and engineering phase, we will be working with our engineering team (plumbers, electricians, architects) to finish the plans and then the city to get approval and permits.

You will start working with our designer to determine the aesthetics of your design, things like cabinet placement, tile layout, and fixtures. You will also be making color and material selections with your project manager. Click to our design page to see and learn more.

STEP 3

BUILD IT

The last step is to break ground and get your project built.

Some unique services we offer our clients during this step:

A single point of contact that will work closely with you on scheduling, product selections, and project updates.

Browser based or via a phone app, you will have direct access to all the details of your project including daily logs, schedules, invoices , documents, and more. There is a direct message feature along with being able to upload photos and pay invoices.

Client Portal Test Drive Login

Name: Test Drive
Password: TestDrive2024

Billing is structured as progress payments, usually billed on the 1st of each month for work done the prior month.

A dedicated team of trained and experienced field technicians and craftsman who subscribe to our companies core values.

An honest, open door policy of communication. We make every effort to be transparent in all of our interactions. #servenotsell

Ready to start? Scheduling your free in-home consultation.

Renovation Walk-Through

One primary objective of renovation is to enhance the value of your home. In this video, accompany us as we take you through achieving this goal through a renovation project conducted for an investment client.

Ranking Arizona The Best of Arizona Business, Vote for us!

Why Work with

P. J. Hussey Construction?

  • We are Licensed (KB-1), Bonded and Insured.  ROC#327-309

  • We are A+ Rated with the Better Business Bureau

  • All of our work is warranted in accordance with the contract documents for a period of (2) years from the date of completion.

  • We handle projects of all sizes, no job is too small or too big.
  • We do quality work and can provide you a list of references.
  • Experience counts! With 20+ years in the business, we have an established network of resources resulting in cost savings and a smoother process for you.

  • We employ experts to manage all aspects of your project allowing you to have a more hands-off and stress-free experience.

  • We are MORE than just a construction company, we also have property management and real estate divisions.  We handle ALL of your property needs.

  • We live our core values: Commitment to Excellence, Serve, Support, Growth, and Positive Energy.

Home Owners in Phoenix, visit the ADU information page on the City of Phoenix Website for more details about codes and ordinances.

For your free estimate, contact us today!