Move with intention. · Multifamily · San Diego · Investment · Development · Advisory · First-time buyers · Scaling investors · Homeowners with land · Homeowners selling · Move with intention. · Multifamily · San Diego · Investment · Development · Advisory · First-time buyers · Scaling investors · Homeowners with land · Homeowners selling ·
01 / 08 · Multifamily Investment & Development Advisor

Giovanni
Serrano

Most agents close transactions. I analyze deals.

Multifamily investment in San Diego — the financial modeling, development expertise, and market intelligence most agents don't have.

Experience
10+dev projects
Market
San DiegoCounty
Education
B.S. RE & DevelopmentUC San Diego
Multifamily
Duplexes to 12-Unit Buildings
San Diego County
ADU & Infill Development
A · Giovanni Serrano · Investment Advisor San Diego · CA
Giovanni Serrano
02
Services

How I Help You MoveWith Intention

Four distinct services. Each built around your specific goal — not a generic process.

01 · Invest
Your firstmultifamily.
First-timebuyers

A duplex or triplex you live in, while tenants pay your mortgage.

Most first-time buyers don't realize they can start building wealth from day one. Instead of locking yourself into a single-family home with one mortgage and no income, a duplex or triplex lets you live in one unit and rent the rest — your tenants help pay your mortgage while your equity grows.

I educate you on the strategy, help you find properties other agents overlook, and run the numbers on every deal before you make an offer — so you know exactly what it will cost, what it will return, and whether it actually makes sense.

Strategy
House hack
Down
3.5–5%
Property
2–4 units
Financing
Owner-occupied
  • House-hack strategy — live in one unit, rent the rest
  • Full deal analysis before every offer — NOI, cash flow, debt coverage
  • Deep San Diego neighborhood knowledge — Mission Hills to National City
  • You'll understand the investment, not just the purchase
02 · Scale
Your portfolio.
Existinginvestors

Fourplex through 12-unit. Institutional-grade underwriting on every deal.

You already own property. Now you want a fourplex, an 8-unit, or a 12-unit building — or you want to build new units on land you've identified. At this level, the stakes are higher and the analysis has to be sharper.

I run full investment analysis on every deal — proforma modeling, cap rate sensitivity, cash-on-cash returns, debt coverage — so you can compare opportunities with real data. And if the opportunity is a development play, I understand the full process from site feasibility through entitlement to construction.

Property
4–12 units
Model
10-yr DCF
Hurdle
14% IRR
Structures
JV waterfall
  • Acquisition analysis for existing multifamily buildings
  • Development feasibility for new construction opportunities
  • Investment analysis — proforma, IRR, cap rate, cash-on-cash
  • San Diego market intelligence — where demand is growing and why
03 · Develop
Build morethan you think.
Homeownerswith land

SB 9, ADU law, density bonus. Free lot review, full feasibility, end-to-end project management.

Recent California law opened up small-scale development on lots that used to be locked. SB 9 lets you split a single-family lot and build up to four units. State ADU law lets you add a detached second unit on nearly any residential property. The State Density Bonus Law can allow up to 50% more units for projects with an affordable component. If you own land in San Diego, there's a good chance you can build more than you think.

I run the feasibility, build the proforma, and if the numbers work, I assemble and manage the entire development team — architect, engineers, contractor — from concept through construction to completion. You don't need to figure out the process. That's what I do.

Path
SB 9 / ADU
Yield
2–10 units
Process
Concept → C of O
Team
Architect + GC
  • Feasibility analysis — what can you build and will it pencil
  • Full proforma modeling before you commit a dollar
  • Team assembly — architect, engineers, general contractor
  • Full project management from entitlement to certificate of occupancy
04 · Sell
Maximize yourexit value.
Homeownersselling

Highest-and-best-use valuation. Dual-audience marketing. Trade-up coordination.

Most agents price a home by looking backward at what your neighbors sold for. I evaluate your property like a developer. Before we ever put a sign in the yard, I run the same three-approach valuation that bank appraisers use and analyze the lot for ADU or SB 9 development upside. If your property has hidden land value, we don’t let the next buyer capture that profit. We price it into your sale.

Strategy
Three-approach valuation
Marketing
Dual audience
Property
SFR & small multi
Exit
Trade-up / 1031
  • Highest-and-best-use valuation — Sales, Income, and Cost approaches
  • Dual-audience marketing — pitching to both families and investors
  • Trade-up and 1031 exchange coordination
  • Military relocation / PCS hold-vs-sell proformas
← Drag · scroll · 4 services on the rail 01 · 02 · 03 · 04
03
About

A real estate professionaland developer.

Real estate runs in my family. Underwriting runs in how I work.

I was born in San Diego and grew up across the San Diego–Tijuana region — the binational corridor that’s been my family’s home for three generations.

My mother, my uncles, and my abuelos have been operating in real estate on both sides of the border for more than two decades: acquiring parcels, developing them, leasing them, selling them, doing it again. That’s how I learned this business — on the ground, on both sides of the border, long before any classroom.

By 16, I was working land transactions alongside my mother. By 18, I was on construction sites with my uncles — planning, financing, building, and leasing the apartments and commercial spaces our family developed. By 21, I had helped take somewhere between thirty and sixty units from raw land to producing income.

Acquisition. Construction. Leasing. Sale. Repeat. The full arc of a real estate venture, run more times than most agents see in their entire careers.

On top of that foundation, I built the institutional toolkit. A B.S. in Real Estate & Development from UC San Diego — a project-based program tied to actual properties, actual investors, and the financial models lenders and acquisition committees actually use. DRE-licensed Multifamily Investment & Development Advisor (#02282434). Five years in corporate sales at AT&T and Wyyerd Fiber sharpened the negotiation muscle and funded the transition.

What that means for you:

I’m not a transactional agent. Most agents in San Diego show properties, write offers, and close deals — I do those things, but my actual value is upstream. I run full proformas on every property worth considering. I model development upside under SB 9, ADU law, the State Density Bonus, and SB 1123. I structure JV waterfalls for partner deals. I project-manage small infill developments end to end — from feasibility through certificate of occupancy and the cash-out refinance after.

I work as both a real estate professional and a developer. Most people in this business pick one lane — the lanes inform each other. My development experience changes how I underwrite acquisitions, and my acquisition discipline changes how I run development projects.

If you’re buying your first multifamily, scaling a portfolio, or looking at what’s buildable on the lot you already own — I bring real estate finance, development experience, and deep knowledge of the San Diego–Tijuana region to the table. Not just a transaction.

Thesis
“Real estate is a financial instrument. It should be treated like one.”
Giovanni Serrano · 2026
16

San Diego–Tijuana

Born in San Diego, raised binationally. Three generations of family operators on both sides of the border. From 16, working land transactions with my mother. By 18, on construction sites with my uncles — planning, financing, building, and leasing. The full lifecycle, learned from the inside.

First deal
5yr

Corporate Sales

Five years of B2B sales discipline at corporate scale. AT&T, Wyyerd Fiber. Negotiation under pressure, account management, and the resources to fund what came next.

B2B
UCSD

B.S. RE & Development

Project-based program. Proforma modeling, joint ventures, market analysis, California planning law, development feasibility — applied to real properties and evaluated by industry professionals.

2025
DRE

California Licensed

San Diego. First-time buyers, scaling investors, infill developers. The construction site and the spreadsheet, both.

#02282434
04
Portfolio

The Work Behind the Analysis.

Real estate investment analysis, development feasibility, market research, and financial modeling — using real San Diego properties, real market data, and institutional-standard models.

Senior Capstone · UCSD Urban Planning EXPO

4855 College Ave —3.05-Acre Multifamily Development

Full Offering Memorandum · presented to industry judges

A complete Offering Memorandum for a 3.05-acre site zoned single-family, with proposed rezone to multifamily (RS-1-7 to RM-4-10). Every stage of development evaluation — from zoning and demographics through proforma and exit — in the same format institutional firms use to evaluate where to commit millions of dollars.

Presented at UCSD Urban Planning EXPO with a charrette board and an investor video pitch.

Hold
10 yr
Pages
30
Site
3.05 ac
Rezone
RM-4-10
Open the full project file →
Analysis & Design
·
Land use & zoning (RS-1-7 to RM-4-10 rezone)
·
Demographics with projections through 2035
·
Market analysis — vacancy, rents, absorption, comps (CoStar)
·
Development program, site plan, parking
·
Design vision, massing, amenities, tenant mix
·
Community benefits & SWOT analysis
Financial & Deliverables
·
10-year proforma with full cash flow
·
IRR, cash-on-cash, equity multiple, levered returns
·
Financing assumptions, cost basis, cap rates
·
Marketing & branding identity
·
30-page investor-ready Offering Memorandum
·
EXPO charrette board + investor video pitch
Offering Memorandum 3.05 Acres Multifamily College Area Rezone 10-Yr Proforma Investor Pitch CoStar
Acquisition & Development Underwriting
Advanced Finance — Case Studies
Planning & Site Analysis
05
Sample

How I Model a Deal

Every property you're considering gets this treatment before you make an offer. The numbers below are illustrative — on a real deal, they'd be your actual rents, your actual financing, your actual market.

Sample · North Park

4-Unit Multifamilybuilt 1978 · 5,800 sf lot

4 × 2BR/1BA · seller asking · agent-listed
Asking
$1,650,000
25% down · 7.0% / 30-yr
Year 1 Proforma
Gross scheduled rent$144,000
Less vacancy (5%)−$7,200
Less operating expenses (35%)−$47,880
Net Operating Income$88,920
Less annual debt service−$98,772
Cash flow after debt−$9,852
Capital Stack
Purchase price$1,650,000
Down payment (25%)$412,500
Closing costs (est.)$32,000
Reserves (6 mo.)$18,000
Total cash required$462,500
Loan amount$1,237,500
Cap Rate
5.4%
Cash-on-Cash
2.1%
DSCR
0.90×
Value-Add · Detached ADU Adding a 1BR detached ADU (permitted under state ADU law) at $180,000 construction cost adds $27,000 in annual rent. Revised NOI: $106,470. Revised cash flow: +$7,698. Cash-on-cash shifts to +1.2% with substantially better long-term equity.
Verdict As-is, this deal doesn't pencil — negative cash flow and DSCR below lender thresholds. It only works with the ADU upside, meaningful seller concession, or assumable low-rate financing. This is exactly what you need to know before you make an offer.

This is a sample analysis framework, not a closed deal. On a real property we'd use your target rents, your verified comps, your specific loan terms, and live market data.

06
Reviews

What Clients Say

Two voices, two segments. More coming as the practice grows.

07
Let's Connect

Ready to MoveWith Intention?

Whether you're buying your first multifamily property, scaling your portfolio, or exploring what you can build — the first step is a conversation.

Direct line

One call.Then a model.

No fees until you transact. No high-pressure pitch. The numbers will tell us if there's a deal here — and the call will tell us if we're a fit.

Your information is never shared or sold. I'll respond within 24 hours. No pressure. No obligation.