Hillside retaining walls, 1970s property-line walls rebuilt, and 7-foot gate pilasters on rural lots — permitted with the City of Poway, inspected in its four stages, and drawn around your water meter and easements before we dig. Licensed C-29 mason; call for a free site visit.
CSLB #979389 · C-29 Licensed · Bonded $25,000 · Free on-site estimates
Poway walls by the numbers
Poway regulates walls more finely than most of the county. Its building code exempts a fence or non-retaining wall up to 6 feet and a retaining wall 3 feet or less from the top of the footing with no surcharge — everything else is permitted and inspected at the footing, pre-grout, backfill-and-drainage and final stages. Its zoning code then sets a 6-foot cap on any wall-and-fence combination, a 4-foot limit for solid walls in the front setback, 7 feet for gates on rural lots and 8 feet for approved noise walls.
Poway sits among what the City calls “steep, rugged hillsides,” so a lot of its walls hold real ground. Water is what brings those walls down. In a study of 320 failed reinforced-soil walls, 63% of failures were caused by water — which is why Poway’s prescriptive wall puts drains every 6 feet behind 12 inches of gravel, and why we build that way whether a wall is permitted or not. Over a third of Poway’s homes went up in the 1970s; many of their walls were built without either.
Reinforced masonry for hillside lots, tract-home property lines and rural estates. County-wide detail is on our retaining wall and block wall pages; this page is what changes inside Poway.
Retaining
Grouted-solid CMU on a footing 24 inches below finish grade, Grade 60 steel, 12 inches of gravel and drains every 6 feet — the City’s prescriptive wall, up to its 6-foot table height on level, sandy backfill. On clay, a slope above or a driveway behind, we bring in an engineer and a soils report as the bulletin requires.
Terraces
Where one 9-foot wall would break the 6-foot rule, Poway allows a series of walls each up to 6 feet if a 5-foot landscape area separates them. We lay out the terrace, the planting shelf and the drainage between tiers as one design, so the upper wall’s water doesn’t load the lower one.
Block walls
Replacing leaning 1970s walls along rear and side lines with reinforced, grouted CMU up to 6 feet — the height Poway exempts from a building permit for a non-retaining wall. Stucco, split-face, slump stone or stone veneer, with control joints at the 25-foot maximum the City’s wall bulletin uses.
Front yards
Solid walls over 4 feet can’t sit in Poway’s front setback, a 6-foot front wall must be open on its top 2 feet, and nothing over 3 feet is allowed within 15 feet of where your driveway meets the street. We design the low wall, pilasters and iron to fit all three.
Rural estates
On lots of an acre or more zoned RR-A, RR-B, RR-C or RS-1, Poway allows driveway gates and pilasters to 7 feet, set at least 20 feet back from the street. We size the pilaster footing and steel to carry the gate leaf, not just the masonry.
Fire-country finish
Natural or manufactured stone over a reinforced block core — the look Poway’s estates favour, and noncombustible. The City’s 2025 wildland-urban interface code lists CMU block fire walls among the measures that can justify a reduced property-line setback.
Poway’s “Retaining Wall – Level Backfill” bulletin is a complete design for walls from 3 feet 4 inches to 6 feet high, on one condition: the retained soil is level and not expansive — sandy, granular backfill at 30 pcf active pressure on 1,500 psf bearing, with no foundation, driveway, fence or other load within a distance equal to the wall’s height. Meet that and the wall can be built straight from the City’s table, with no special inspection up to 6 feet.
Miss it — clay, a slope above, a pool or a parking pad behind — and the bulletin says the wall “should be designed by a State of California licensed civil engineer or architect,” and a soils report may be required. On Poway’s hillside lots that’s common, so we tell you at the site visit which version you’re paying for.
Building permit. Poway amended the 2025 California Building Code so a fence is exempt to 6 feet, and the City lists “fences and non-retaining walls not more than 6 feet tall” and retaining walls 3 feet or less from the top of the footing with no surcharge as exempt work. Anything taller — or any retaining wall holding up a driveway, slope or structure — goes through the Building Division at 13325 Civic Center Drive. The City quotes up to 10–12 business days for a first building review, and up to 28 calendar days where planning and engineering also review.
Grading permit. Separate from the wall: excavation 2 feet or deeper with slopes steeper than 2:1, moving 50 cubic yards or more, or changing drainage needs one. Utilities. Poway is its own water purveyor — PMC 13.11.130 keeps 2 feet clear around every meter and bars walls, fences and gates from utility easements without written City authorization. A wall built in an easement is a wall that can be ordered out.
The right wall depends on the soil behind it, what sits above it and how close the brush is. How the options compare on a Poway lot:
| Prescriptive CMU (City table) | Engineered CMU | Stone-faced CMU | |
|---|---|---|---|
| When it fits | Level, sandy backfill; no load within the wall’s height | Clay, slopes above, driveways, pools or walls over 6 ft | Either of the others, where looks matter |
| Design | Straight from the City bulletin | Licensed engineer; soils report may be required | Same core as the left two, veneer added |
| Special inspection | None up to 6 ft | As the engineer specifies | As the core requires |
| Fire | Noncombustible | Noncombustible | Noncombustible — natural stone or manufactured |
| Typical use in Poway | Garden terraces, low yard walls | Hillside pads, cut slopes, estate drives | Rural entries, front walls, pilasters |
Sources: City of Poway Retaining Wall bulletin (Rev. 03/21); PMC 15.05 §608.2.1. Final design is confirmed at plan check.
Shaun measures the height you need, looks at what’s above and below, and finds the water meter, easements and front setback on the plat.
If the backfill is level and sandy, we build from the City table. If not, an engineer designs it and, where needed, a soils report is ordered.
Building permit, plus a grading permit if the cut or the earth moved crosses the City’s thresholds. Trenches 5 ft or deeper that a worker enters need a Cal/OSHA permit too.
Footing dug 24 inches below finish grade, steel tied, and inspected before concrete.
Coursing laid and pre-grout inspected, cells grouted solid, then gravel, drains and backfill inspected before soil goes back.
Stucco, split-face or stone veneer, caps and any railing — then the City’s final inspection.
Planning one? Shaun will walk the site with you and tell you what it needs — free, no obligation.
Call (619) 581-2492National cost-guide figures, for comparison only — not our price. In Poway the biggest swing is whether the wall fits the City’s prescriptive table or needs an engineer and soils report.
| Wall type (Fixr, 2025, national) | Installed, per sq ft of face |
|---|---|
| Concrete block | $10–$50 |
| Poured concrete | $30–$40 |
| Natural stone | $20–$100 |
| Typical 25 ft × 4 ft block wall with footing | $3,500–$10,000 (avg. $5,463) |
Source: Fixr retaining wall cost guide, updated 31 January 2025. Engineering, soils reports and City permit fees are extra and shown separately on our written proposal.
Every Poway address is permitted by the City; what changes is the slope, the lot and what the wall is holding.
The Poway page covers the ground, permits and neighbourhoods across every kind of job. The county-wide pages go deeper on the build itself.
Straight answers before you hire. Anything else — call, and Shaun answers it himself.
Call (619) 581-2492Yes, unless it is 3 feet or less measured from the top of the footing to the top of the wall and supports no surcharge — no driveway, slope, structure or fence load behind it. Permitted walls are inspected at the footing, pre-grout, backfill/drainage and final stages; there’s no special inspection up to 6 feet.
Not a building permit if it’s a fence or a non-retaining wall no more than 6 feet tall — Poway amended the building code to say so. Zoning still applies: 6 feet is also the cap, solid walls over 4 feet can’t sit in the front setback, and nothing over 3 feet is allowed within 15 feet of where a driveway meets the street.
Not in one stack. Poway caps any wall, fence or retaining wall combination at 6 feet. With a 5-foot landscape area between them, each wall in a terraced series can be up to 6 feet — so a tall grade change becomes two walls with a planted shelf.
When the City’s prescriptive design doesn’t fit: expansive (clay) or unknown soil, sloping backfill, or a load within a distance equal to the wall’s height. The bulletin then says the wall should be designed by a licensed civil engineer or architect, and a soils report may be required.
Sometimes, in addition to the building permit. Poway requires a grading permit for excavation 2 feet or deeper with slopes steeper than 2:1, for moving 50 cubic yards or more, or for changing drainage patterns. Big hillside walls usually cross one of those.
Keep 2 feet clear on all sides of a City water meter, and don’t build walls, fences or gates in a utility easement without written City authorization (PMC 13.11.130). We check both before the layout is staked.
They don’t burn, and the City’s 2025 wildland-urban interface code names noncombustible CMU block fire walls among the measures the fire code official can accept to reduce the 30-foot property-line setback for structures. A wood fence next to the house is the opposite.
Shaun Bagwell Masonry holds California C-29 Masonry licence #979389, issued 14 December 2012, with a $25,000 contractor bond. Look it up at cslb.ca.gov → “Check a License”.
Call Shaun at (619) 581-2492 or send the form. He’ll measure the grade, find the meter and easements, tell you whether the City’s table or an engineer applies, and hand you a written, itemised price.
