Is Avorino a licensed custom home builder in Fullerton?

Yes. Avorino carries California General-B License #1107538 and builds custom homes in Fullerton end-to-end: architecture, structural engineering, permits, and construction under one roof. As the Fullerton custom home builder and general contractor on your project, Avorino owns the schedule and the outcome, rather than coordinating a chain of subcontractors you'd manage yourself.

How much does a custom home in Fullerton cost?

Custom homes in Fullerton typically run $1.1M – $4M+ depending on size, finish level, and lot conditions. Avorino quotes a fixed-price design-build contract so the budget you sign at week one is the budget at the warranty handover.

How long does a custom home build take in Fullerton?

Permit-to-keys windows in Fullerton typically land at 14 – 26+ months for a standard single-family build. Hillside soils + retaining engineering happens in the design phase so plan-check is single-round wherever possible.

Do you handle Fullerton permits and plan check?

Yes. Avorino runs every Fullerton permit submittal, plan-check correction, and final inspection through one office. You sign once at the start; from there, permitting and inspections run through us.

What's the warranty on a custom home build?

Every Avorino build ships with a tiered construction warranty: 1-year fit & finish, 4-year systems (plumbing, electrical, HVAC), and 10-year latent structural. Avorino takes the warranty call.

Custom homes · Fullerton

Hillside custom homes in Fullerton.

Hillside-engineered custom homes across Fullerton — soils, retaining, slope stability, and drainage carried in-house alongside the architecture. Designed for the lot you actually have, not the lot a stock plan assumes.

CoverageFullerton, OC

Typical range$1.1M – $4M+

Build window14 – 26+ months

Get a free estimate Call (714) 900-3676

Fullerton, Orange County — Fullerton · Orange County

Fullerton Custom Home Construction

What an Avorino custom home in Fullerton actually involves.

Downtown Fullerton is a well-preserved historic core with 23 buildings on the National Register (the Chapman Building, the 1899 Dean Block, the 1930 Santa Fe depot); Raymond Hills mixes vintage Craftsman and Spanish homes with mid-century modern and larger hillside estates, while Sunny Hills — built out 1960-90 on former citrus groves — carries midcentury ranch and split-level homes on larger lots. Avorino builds throughout Raymond Hills, Sunny Hills, Amerige Heights, Downtown Fullerton / SOCO, and the historic Depot district. Avorino runs hillside custom homes end-to-end. Soils + geotechnical engineering and retaining-wall design land in the package before drawings finalize, so foundation specs are sized against the actual soils report — not the flat-lot template.

Typical range$1.1M – $4M+
Build window14 – 26+ months
LicenseCalifornia General-B #1107538
WarrantyTiered · 1yr fit & finish · 4yr systems · 10yr structural
Service areaFullerton + 36 other Orange County cities and communities

7+ years of Orange County experience · 150+ completed projects · 4.8 Yelp average across 35+ reviews.

Talk To Us

Free Fullerton custom home estimate.

Your name and number is enough to start — Avorino follows up with a written scope for your Fullerton project.

Avorino calls back as soon as possible, followed by a written estimate — and you're talking to Avorino, never a sales rep.

Typical price range

$1.1M – $4M+

Hillside custom homes — soils, retaining, drainage, and slope-stability engineering carried in-house alongside finish carpentry.

Typical build window

14 – 26+ months

Hillside soils + retaining engineering land in the design phase so plan-check is single-round wherever possible.

Why Avorino in Fullerton.

Custom and high-end rebuild activity concentrates on elevated Raymond Hills canyon and view lots (hillside grading and drainage engineering) and larger Sunny Hills parcels; downtown and Fullerton Heritage-listed properties face preservation review for exterior changes. Avorino operates in Orange County under General-B License #1107538, with 7+ years of OC experience and a 4.8-star Yelp average across 35+ reviews. Architecture, structural engineering, permitting, construction, and the tiered warranty all sit under one roof — one accountable builder from first conversation through final handover.

Architecture + engineering, in-house

Avorino's design-build model means architecture, structural engineering, Title 24 calculations, and soils (where Fullerton lots require it) all sit under one roof. You sign once at the start; the coordination across disciplines runs through one office.

Fullerton permitting, handled

Submittal, plan-check comments, resubmittal, and final inspection all run through one office. Avorino builds drawings against how Fullerton handles slope engineering, retaining wall design, and drainage built into the foundation phase, not bolted on after, so the set walks in ready for what the city checks.

Material + finish selections

Cabinetry, stone, tile, paint, fixtures, appliances — every line item picked against a written allowance log so the bid doesn't drift during construction. Fullerton clients see the finish board before demolition starts.

Tiered warranty

Every Avorino build ships with a tiered construction warranty: 1-year fit & finish (paint, trim, mirrors, flooring, cabinets, countertops), 4-year systems (plumbing, electrical, HVAC), 10-year structural. Same Avorino team you started with takes the warranty call.

What we build in Fullerton

Four custom homes Avorino delivers in Fullerton.

01/04

Hillside custom

Soils + geotechnical engineering, retaining design, view-line preservation — landed up-front.

Geotech up-front
Retaining design
View-line work

Custom kitchen island with Wolf range, brass + marble herringbone

Finish carpentry

Held to the framing standard.

Cabinetry, stair carpentry, window trim, paint cuts — the trades where rushed jobs reveal themselves. Every Avorino custom-home interior is shop-built, drawing-checked, and dry-fit before paint.

Custom millwork drawing-checked
Stone, tile, paint signed off selection-by-selection
Lighting designed against finish materials
Tiered warranty in writing

Same team, end-to-end

One roof, concept to keys.

Architecture, structural engineering, permitting, construction, and the tiered warranty — coordinated under one roof, one builder on point through every trade. You sign once; the disciplines are sequenced so they don't fight each other in the field.

One licensed contact through Certificate of Occupancy + warranty
Architect coordination, not architect competition
Weekly progress reports, written change-orders only
Fixed-price design-build after design phase

Fullerton lot profile

What Fullerton lots typically throw at the build.

Predominantly flat coastal-plain terrain citywide (mean elevation ~150 ft), with a hillside pocket in the northeast at Raymond Hills.

Hillside Management Ordinance applies above 25% grade
Soils + geotechnical engineering required up-front
Retaining design where the slope calls for it
Drainage + erosion control reviewed alongside structural
West and north Fullerton sit on the West Coyote Hills oil field — if the pad is over or near a former oil/gas well, CalGEM runs a Construction Site Well Review before you can build, and methane mitigation can follow.
The Coyote Hills carry a 2025 Very High Fire Hazard Zone (WUI construction), and flatland Fullerton falls in CGS liquefaction zones — so a mapped parcel needs a geotech study.
Flatland Fullerton falls in CGS liquefaction Zones of Required Investigation (Anaheim/Yorba Linda quadrangles), so a mapped parcel needs a geotech study and engineered foundation.

Fullerton permit reality

What Fullerton plan check actually looks like.

Avorino drafts the drawings for single-family custom builds against Fullerton's published code. The variable is which plan checker draws your set and what they flag — the set is built for that, so comments resolve in one round where the city allows.

Pre-application consult before drawings finalize
Comment rounds answered fast and resolved in writing
Clean drawings clear in the first or second comment round
State law caps each plan-check round at 60 days once the application is complete; full cycles with resubmittals typically run longer
Submission is hybrid: Fullerton's “Apply for Permit” link opens the Tyler EnerGov Customer Self-Service portal for online plan upload, but hard-copy sets are still accepted at the Building & Safety counter (303 W. Commonwealth). Avorino files whichever the project calls for.

Fullerton investment range

Where Fullerton sits on the OC price range.

Fullerton custom homes typically land at $1.1M – $4M+. The variance inside that range depends on lot complexity, finish level, structural ambition, and whether the lot sits above a hillside grade threshold.

Finish-level decisions move the budget the most
Structural ambition (hillside cuts, multi-story, glass-line walls) pushes the upper end
Hillside engineering adds a retaining + soils line most flat lots don't carry
Avorino's contract is fixed-price after design — no escalation surprises

Fullerton regulations

Fullerton residential permitting at a glance.

A working summary of the rules Avorino designs against on every Fullerton project — submittal, comment rounds, and inspections run in one office and resolved in writing.

Zoning + setbacks

Fullerton residential standards we design against.

Front: 25 ft · Rear: 20 ft · Side: 5 ft · R-1 standard; Raymond Hills + Sunny Hills add hillside review
Height limit: 35 ft for SFR
Lot coverage: up to 40% (varies by zone)
Typical R-1 minimum lot size: 7,200 sqft

Plan check + permitting jurisdiction

Fullerton Community Development

Plan check: 6–10 weeks
Post-entitlement review clock under AB 2234 (Cal. Gov. Code §65913.3): 15 business days to completeness, then 30 business days to finish review on projects of 25 units or fewer
Multiple comment rounds typical; clean drawings clear in the first or second round
Avorino carries every submittal and comment-round response in-house

Engineering required up-front

What the lot calls for before construction starts.

Title-24 Part 6 energy compliance — state-mandated
Geotechnical soils report + retaining-wall engineering — required when lot grade triggers the Hillside Management Ordinance
Structural engineer of record signs the foundation + framing set
Surveyor stakes property lines + setbacks before slab pour

Code + utility requirements

What every new SFR carries by California state law.

Fire sprinklers required in all new single- and two-family dwellings (CRC R313.2, since 2011)
Title-24 Part 6 + Solar Mandate (Solar panels required on most new single-family homes since 2020)
Utility connections: SoCal Edison, SoCal Gas, city water + sewer + storm drain
Two off-street parking spaces typical for single-family (most R-1 zones)

@avorinoconstruction

Avorino builds across Orange County.

No published Fullerton build yet — here’s recent Avorino work from across Orange County.

“These are the best people in the business. I used Avorino to build my own ADU. They beat every single price I got and on top of that did an excellent job finishing it in no time. Truly the best of the best — highly recommended.”

Shahin S. · Detached ADU · Orange County · 2023

Follow @avorinoconstruction

Common questions — Fullerton

Is Avorino a licensed custom home builder in Fullerton?: Yes. Avorino carries California General-B License #1107538 and builds custom homes in Fullerton end-to-end: architecture, structural engineering, permits, and construction under one roof. As the Fullerton custom home builder and general contractor on your project, Avorino owns the schedule and the outcome, rather than coordinating a chain of subcontractors you'd manage yourself.
How much does a custom home in Fullerton cost?: Custom homes in Fullerton typically run $1.1M – $4M+ depending on size, finish level, and lot conditions. Avorino quotes a fixed-price design-build contract so the budget you sign at week one is the budget at the warranty handover.
How long does a custom home build take in Fullerton?: Permit-to-keys windows in Fullerton typically land at 14 – 26+ months for a standard single-family build. Hillside soils + retaining engineering happens in the design phase so plan-check is single-round wherever possible.
Do you handle Fullerton permits and plan check?: Yes. Avorino runs every Fullerton permit submittal, plan-check correction, and final inspection through one office. You sign once at the start; from there, permitting and inspections run through us.
What's the warranty on a custom home build?: Every Avorino build ships with a tiered construction warranty: 1-year fit & finish, 4-year systems (plumbing, electrical, HVAC), and 10-year latent structural. Avorino takes the warranty call.

Same city, other services

Avorino also runs these in Fullerton.

Custom HomesBespoke residential, architect-coordinated.Current page
New ConstructionGround-up: site prep through Certificate of Occupancy.View New Construction in Fullerton
CommercialTenant improvements, retail, restaurant, office, ground-up.View Commercial in Fullerton
ADUDetached, attached, Junior ADU, garage conversion.View ADU in Fullerton

Verify with the city

All Fullerton construction and permitting details on this page, including fees, setbacks, timelines, and zoning, are based on the City of Fullerton Building & Safety Division's published information and are subject to change. This information may not be fully up to date or accurate. For the latest requirements, visit the City of Fullerton Building & Safety Division directly, and confirm anything that affects your budget or schedule before you build.

Building authorityCity of Fullerton Building & Safety Division
Official websitecityoffullerton.com

Official Fullerton resources this page draws from

Free consultation

Tell us about your Fullerton custom home.

Avorino reviews your project and comes back with a fixed-price design-build proposal and a written timeline, calibrated to Fullerton's permit reality.