Pool Builder & Pool Remodeling in Monrovia, CA
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Last modified: 2026-09-24T00:00:00.000Z
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Image: Glass-tile water wall with sheer descents spilling into a pool
- Monrovia
Design · Permit · Build
Pool & Spa Remodeling in Monrovia
We build new pools and spas, and remodel the ones already in the ground.
Book a Consultation Call 818-300-2393
Built for Monrovia Homes
Monrovia is the fourth oldest city in Los Angeles County, and it has held on to a large share of its historic housing stock, with historic districts at Wild Rose Tract and North Encinitas. The city sits at the foot of the San Gabriel Mountains, and in 2016 it opened more than four and a half miles of trails in its Hillside Wilderness Preserve, looking out over Monrovia and the San Gabriel Valley.
A backyard project here often answers to one of those two settings. On a landmark or a contributing district home, the Historic Preservation Commission reviews alterations, from new structures to grading and tree removal; on a foothill lot, grading thresholds, pad-edge setbacks, protected oaks and defensible space settle the footprint before design begins.
Minimum lot size follows the zone: 7,500 square feet in Residential Low-Density, 20,000 in Residential Estate, and 15,000 in Residential Foothill, where lots in a development must also average more than an acre. On every residential lot a pool stays out of the front yard and at least five feet from the side and rear property lines.
We are a design-build team, which means the people who draw your project are the people who build it. Design, engineering, permits and construction run through one project manager and our own crews, so nothing gets lost in a handoff between a salesperson and a subcontractor. We are licensed, bonded and insured, CSLB license #1119054 .
Permits in Monrovia: Building permits, plan check and inspections run through the Building Division of the Community Development Department. In the Residential Foothill, Residential Estate and Residential Low-Density zones, a Hillside Development Permit is also required for a new house, or for earth movement with a footprint over 500 square feet, whenever the work involves five feet or more of cut or fill or a retaining wall six feet or taller, with swimming pools and basements excluded.
New homes and two-story additions that are not already under a Hillside Development Permit go through neighborhood compatibility design review before the Development Review Committee, while single-story second units and single-story accessory structures in side or rear yards are exempt.
Alterations to a designated landmark or a contributing property in the Wild Rose Tract or North Encinitas historic districts need a Certificate of Appropriateness from the Historic Preservation Commission, which must hold its public meeting no later than 50 days after a completed application is received.
Permit details checked September 2026 against Monrovia Municipal Code and City of Monrovia . Rules change, so we confirm them again for your parcel.
What We Build
- Hillside Development Permit grading plans
- Certificate of Appropriateness submittals
- Pad-edge setback and retaining wall layout
- Oak tree preservation permits
- Fire-zone rated exterior walls and glazing
- New gunite pool and spa construction
- Full pool remodels and replastering
- Pebble, quartz and plaster interior finishes
- Waterline tile and coping replacement
- Raised and attached spas with spillways
- Baja shelves, benches and sun ledges
- Water features, fire bowls and sheer descents
- Equipment upgrades, heaters and automation
- Pool decking in pavers, concrete or travertine
- LED lighting and salt-water conversions
Local Conditions
What to Know in Monrovia
These local conditions change the scope, the schedule and the budget.
01
In the Residential Foothill zone, where a pad sits beside a slope of three feet or more, structures must be set back from the side and rear pad edge by one third of the slope height, up to 15 feet for the single-story portion, and a second story sits a full 15 feet back. A retaining wall that extends the pad is limited to three feet unless a house, garage or other permitted structure screens it from the street and neighboring parcels.
02
New construction and additions in the Very High Fire Hazard Severity Zone fall under a local Building Code chapter that requires one-hour fire-resistive exterior walls with double-glazed exterior glass, though a one-story detached accessory building with no more than 484 square feet of projected roof area, set at least 20 feet from the primary building, is excepted.
03
The city's vegetation fire hazard ordinance keeps the 30 feet around any structure free of natural vegetation such as sumac, buckwheat and sage, holds highly flammable ornamentals such as eucalyptus, pine, cypress and juniper at least ten feet from buildings, and in the Very High Fire Hazard Severity Zone extends defensible space to 200 feet, which shapes planting around pools, decks and outdoor rooms.
04
Oaks ten inches or more in diameter, measured two feet above ground, in a single-family front yard or street-facing side yard, and every oak on a vacant lot, need an oak tree preservation permit from the Development Review Committee before removal, pruning of more than a third of the crown, foliage or roots, or any grading or irrigation inside the drip line.
Areas we serve in Monrovia:Old TownWild Rose TractNorth Encinitas
Investment
What It Costs in Monrovia
Real Southern California price ranges, not teaser numbers.
New pool construction
$70,000 to $150,000+
What moves it: size and shape, spa, water and fire features, decking material, automation, and how much access and grading the site needs
Pool remodel and resurfacing
$15,000 to $45,000
What moves it: finish choice (plaster versus pebble or quartz), tile and coping replacement, new equipment, and whether the deck is being replaced at the same time
Paver patio and hardscape
from about $13,000
What moves it: square footage, paver type, base preparation, drainage, and any steps or retaining involved
Your lot, access and finishes set the price. We walk the site, then show you where every dollar goes.
Get a line-item price for your Monrovia property
The Process
How We Work in Monrovia
01
Site Review
We walk the property, check access, soil and slope, and confirm what the yard can actually take.
02
Design & 3D
You see the pool in 3D before anything is dug, with finishes, tile and decking chosen.
03
Plans & Permits
We draw the plans, handle engineering where the site needs it, and pull the permits. In Monrovia that submittal goes to City of Monrovia Community Development Department, Building Division.
04
Excavation & Shell
Dig, steel, plumbing and gunite. This is where site access and grading matter most.
05
Finishes
Tile, coping, decking and your chosen interior finish go in.
06
Startup & Handover
We fill, balance the water, commission the equipment and walk you through every control.
Questions
What Monrovia Homeowners Ask
Who issues the permits for this work in Monrovia?
City of Monrovia Community Development Department, Building Division. Building permits, plan check and inspections run through the Building Division of the Community Development Department. In the Residential Foothill, Residential Estate and Residential Low-Density zones, a Hillside Development Permit is also required for a new house, or for earth movement with a footprint over 500 square feet, whenever the work involves five feet or more of cut or fill or a retaining wall six feet or taller, with swimming pools and basements excluded.
New homes and two-story additions that are not already under a Hillside Development Permit go through neighborhood compatibility design review before the Development Review Committee, while single-story second units and single-story accessory structures in side or rear yards are exempt.
Alterations to a designated landmark or a contributing property in the Wild Rose Tract or North Encinitas historic districts need a Certificate of Appropriateness from the Historic Preservation Commission, which must hold its public meeting no later than 50 days after a completed application is received.
We prepare the drawings, make the submittal and handle plan-check corrections ourselves, so you are not the one chasing plan check.
What makes building in Monrovia different?
Minimum lot size follows the zone: 7,500 square feet in Residential Low-Density, 20,000 in Residential Estate, and 15,000 in Residential Foothill, where lots in a development must also average more than an acre. On every residential lot a pool stays out of the front yard and at least five feet from the side and rear property lines.
One local condition that shapes the work: In the Residential Foothill zone, where a pad sits beside a slope of three feet or more, structures must be set back from the side and rear pad edge by one third of the slope height, up to 15 feet for the single-story portion, and a second story sits a full 15 feet back.
A retaining wall that extends the pad is limited to three feet unless a house, garage or other permitted structure screens it from the street and neighboring parcels.
Which parts of Monrovia do you work in?
All of it, including Old Town, Wild Rose Tract and North Encinitas. Our crews run every job out of our Cahuenga Pass base in Los Angeles, with our own people on site.
What does a pool or spa project cost in Monrovia?
New pool construction: generally $70,000 to $150,000+ across Southern California. What moves it is size and shape, spa, water and fire features, decking material, automation, and how much access and grading the site needs. We give line-item pricing after seeing the site rather than quoting a number over the phone.
How long does a pool remodel take?
A straightforward replaster with new tile and coping usually runs three to five weeks. A full remodel that includes new decking, equipment and features typically runs eight to twelve weeks. Site access and permit timing are the two things that move that most.
How long does a new pool take to build?
Most new pool builds run about three to five months from permit to first swim. Hillside sites that need engineered retaining or difficult access sit at the longer end of that range.
Should I replaster or fully remodel?
If the shell and plumbing are sound and you only dislike the surface, replastering with new tile and coping is the efficient choice. If the equipment is aging, the deck is cracked or the shape no longer suits how you use the yard, a full remodel costs less than doing it in two separate phases.
Do you self-perform the work?
Yes. Our own crews handle the build rather than passing it to a rotating set of subs, which is why the schedule and the finish standard stay consistent.
More Services in Monrovia
Backyard & Outdoor Living in Monrovia ADUs & Additions in Monrovia Everything we build in Monrovia
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Planning Guides
Before You Build in Monrovia
Costs, materials and process notes from our own projects.
Building a Pool in Northridge: Costs and Permits A new pool in Northridge typically runs $85,000 to $165,000 all-in with decking and equipment. The tract lots are generous, the soil is workable, and the real variables are access, spa and deck square footage. Read guide Van Nuys Pool and Backyard Costs A new pool in Van Nuys runs $75,000 to $145,000, and a pool-plus-backyard package $110,000 to $220,000. Flat lots keep excavation honest; older service panels and gas meters are where budgets slip. Read guide Travertine vs Porcelain Pavers for SoCal Yards Travertine installs at roughly $22 to $30 per square foot, porcelain at $24 to $34. The real difference is heat, staining and how each one handles a chlorinated pool deck over ten years. Read guide Pool Coping Options: Concrete, Stone and Porcelain Coping runs $28 to $55 per lineal foot in concrete, $55 to $110 in natural stone and $60 to $120 in porcelain. On an average pool perimeter that is a $2,500 to $11,000 decision. Read guide
Planning a Pool in Monrovia?
Sit down with your project manager and get an accurate estimate. We call you back within one business day.
Book a Consultation 818-300-2393
Licensed, bonded & insured · CSLB license #1119054
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