San Diego Real Estate

Find your next home in San Diego County.

Committed to excellence. Driven by love.

Whether you're buying, selling, investing, financing, or developing, you'll work directly with Zach—a real estate broker guiding San Diego clients since 2015.

How I can help

Buying a home

A guided search, honest advice on value, and a strong negotiator in your corner from first showing to closing.

Buyers →

Selling your home

Pricing from real sold comps and market data, a clear launch plan, and weekly updates so you always know where things stand.

Sellers →

ADU consulting

Planning, permitting, and project management for accessory dwelling units, from feasibility to final inspection.

ADUs →

Home financing

As a licensed mortgage loan originator, I can help you understand loan options alongside the purchase.

Financing →
Zach Plumb, San Diego real estate broker and owner of Utmost
Meet Zach Plumb

I'll tell you how it is, and work hard for you either way.

I've worked in real estate since 2010 and have helped San Diego buyers and sellers since 2015. Along the way I've managed rentals, invested in my own properties, guided ADU projects, and become a licensed loan originator. I see a home from every side: a place to live, an income source, and an investment.

What hasn't changed is how I work: I listen first, give you straight answers about price and timing, and keep you updated without you having to ask. Utmost is built on one idea: excellence in the work, and love for the people we do it for.

Direct: 619-438-5585 zach@utmosthomes.com

Zach's track record

$201M
in personal home sales
163
five-star Google reviews
267
transactions closed
Read client reviews

What clients say

1 / 4
“Their pricing strategy was right on target, and we received a strong offer within just a couple of weeks of listing.”
Van N. · GoogleSeller
“He helped my wife and me buy our first home and, as of yesterday, sell it.”
JonPaul C. · GoogleBuyer & seller
“He's super sharp, a great negotiator, and the guy you want on your side when it's crunch time.”
Corey H. · GoogleBuyer
“His knowledge of the local housing market and ADUs was invaluable.”
Neville B. · GoogleFirst-time buyer
“When a few hiccups came up, he handled them professionally and provided clear guidance.”
Asia C. · GoogleSeller
“Zach was incredible at meeting all of these challenges!”
Rachel S. · Google1031 exchange
“This was our 3rd time selling a home and Zach was the best agent we've ever worked with.”
Andrea M. · GoogleSeller
“Brought invaluable expertise in ADU conversions and general remodeling.”
Michael S. · GoogleInvestor
“I wouldn't have trusted the sale of my beloved home to anyone else!”
Karen E. · GoogleSeller
“It truly felt like he was looking out for our best interests the entire time.”
Shawn C. · GoogleBuyer
“He's not in it for himself—he's in it for you.”
Andrew E. · GoogleBuyer
“He worked tirelessly and yet effortlessly to sell my condo in a down season.”
Sam G. · GoogleSeller
More client reviews → Read all 163 reviews on Google → Leave a review →

Common questions

What areas do you serve?

All of San Diego County, from the city of San Diego to the coast, North County, South Bay, and East County.

How long have you been in real estate?

Since 2010. I've worked with buyers and sellers, managed rentals, and invested in real estate, and I've served San Diego County since 2015.

Can you help with my mortgage too?

I'm a licensed mortgage loan originator (NMLS #2705699), so I can walk you through financing as part of your purchase.

Can I buy a home with an ADU, or one I can add an ADU to, for rental income?

Yes. I help buyers find properties with an existing ADU or room to build one, and look at permitting and rent potential before you write an offer.

How do you decide on a listing price?

From recent sold homes near yours and market data, not active listings or online estimates, then a launch plan built around that number.

How will I stay updated while my home is listed?

You get a listing update every week with showings, feedback, and market activity, plus a call whenever something needs a decision.

Do you work with investors?

Yes. I've invested in and managed rentals myself, including long-term and mid-term rentals, so I can talk numbers from experience.

Which brokerage are you with?

Utmost is affiliated with HomeSmart Realty West in San Diego.

How do I find out what my home is worth?

Reach out and I'll put together a value analysis based on recent sold homes near you.

Let's talk about your next move

Thinking about buying, selling, or building an ADU? I'd love to talk to you.