# Fencing and Block Walls for French Valley and Winchester, CA > French Valley and Winchester fences and walls: Riverside County permits, not a city's, near-new tract homes, Monserate and Domino hardpan and county wall standards. URL: https://caskfencetemecula.com/service-areas/french-valley/ Service area French Valley and Winchester fences and walls: Riverside County permits, not a city's, near-new tract homes, Monserate and Domino hardpan and county wall standards. Get an Estimate [(951) 944-2778](tel:+19519442778) Last Updated: October 31, 2026 No city hall here. Fence and wall permits go to Riverside County. a block wall between back yards b vinyl side yard fence 1. **a** block wall between back yards 2. **b** vinyl side yard fence French Valley's tracts are almost all post-2000, and every permit for them comes from the county, not a city. Riverside County Building & Safety issues building permits (Unincorporated Riverside County) Fire zone CAL FIRE's 2025 local responsibility area map shows no hazard zone at the French Valley and Winchester center points; the zone varies by address. 92596, 92563 ZIP codes ## What usually starts a fence project in French Valley and Winchester ### A wall that needs a permit French Valley and Winchester are unincorporated, so block walls, retaining walls and taller fences are permitted by Riverside County Building & Safety in Riverside. ### Adding to or changing a builder's wall Nine in ten French Valley homes were built in 2000 or later, and many back yards are already enclosed by tract walls that a new gate, extension or repair has to tie into. ### Post holes that hit a cemented layer Soil survey points map Monserate sandy loam with a duripan about 71 cm down in French Valley and Domino silt loam with one about 69 cm down in Winchester. ### A retaining wall in a tract The county's retaining wall standard requires the gravel and perforated pipe drain in tracts and does not allow the open-joint weep option there. ## Services in French Valley and Winchester ### Block Walls → Freestanding concrete block walls and pilasters, in precision, split-face or slumpstone, with wrought iron infill where a view matters, built to the city's standard or an engineered design. ### Retaining Walls → Reinforced block and segmental retaining walls for sloped and terraced lots, with the drainage, footing and engineering each wall needs, and fences planned on top. ### Vinyl Fences → Vinyl privacy, semi-privacy and ranch rail fences, with gate posts reinforced for the load and rails fitted to move with Temecula's summer heat. ### Wood Fences → Redwood, cedar, fir or treated pine privacy fences, on wood or galvanized steel posts, planned around Temecula's soil, sun and wind. ### Gates → Walk gates, double drive gates and RV gates in wood, vinyl, steel or aluminum, hung on posts sized for the leaf and set up for slope and swing clearance. ### Automatic Gates → Swing and slide gate operators matched to the gate and its use, with monitored safety sensors, planned power and fire department access. ### Pool Fences → Pool enclosures in aluminum, tubular steel or vinyl, with self-closing, self-latching gates, planned around Temecula's pool and spa handout. French Valley and Winchester have no city hall, so a wall permit here comes from Riverside County Building & Safety in Riverside, not from Temecula or Murrieta next door. Census figures also give French Valley the newest housing of any area covered here: 90.2% of its homes were built in 2000 or later. [Cask Fence Temecula](https://caskfencetemecula.com/) manages fence, gate and wall projects in both unincorporated communities, with licensed and insured contractors doing the installation: [block walls](https://caskfencetemecula.com/block-wall-installation/) and [retaining walls](https://caskfencetemecula.com/retaining-wall-installation/), [vinyl](https://caskfencetemecula.com/vinyl-fence-installation/) and [wood](https://caskfencetemecula.com/wood-fence-installation/) fences, and new [gates](https://caskfencetemecula.com/gate-installation/) in existing tract walls. ## County permits, not city ones Being unincorporated changes who answers the questions. Fence height limits for French Valley and Winchester come from Riverside County’s zoning ordinance, Ordinance 348, and the county issues the permits. We confirm the limits for each address with the county before a design is fixed, rather than borrowing a neighboring city’s numbers. The county office is at 4080 Lemon St in Riverside, phone (951) 955-1800, and its [Building & Safety site](https://building.rctlma.org/) has the standard plans and handouts. The state code sets the permit threshold. Under the 2025 California Residential Code, a fence of 7 ft or less is exempt from a building permit, and a retaining wall is exempt only up to 4 ft measured from the bottom of its footing, and only if nothing above it adds load. Anything past those lines goes to the county. ## A housing stock that is almost all new tract The Census count for French Valley is 12,000 homes. Of those, 94.3% are single-family detached, 87.4% are owner-occupied and 90.2% were built in 2000 or later. That’s a market of owners in newer tracts, and it shapes what a fence project usually is here: changing, extending or tying into fencing the builder already put in, instead of replacing something decades old. Where a tract has an association, its architectural review comes before any permit; the [HOA approval guide](https://caskfencetemecula.com/guide/hoa-fence-approval/) covers the submittal. A side yard gate cut into a block wall, a taller privacy section, an [automatic gate](https://caskfencetemecula.com/automatic-gate-installation/) at an RV pad or a [pool fence](https://caskfencetemecula.com/pool-fence-installation/) for a new pool are the sort of additions a near-new lot can call for. On a shared side or rear line, Civil Code 841 calls for 30 days’ written notice to the neighbor first, which the [good neighbor fence law guide](https://caskfencetemecula.com/guide/good-neighbor-fence-law/) walks through. ## Monserate and Domino: two hardpans The USDA soil survey maps Monserate sandy loam at the French Valley sample point, with a duripan about 71 cm, roughly 28 inches, below the surface. Winchester’s point maps Domino silt loam, a saline-alkali soil, with a duripan about 69 cm down. A cemented layer at that depth can stop an auger partway through a post hole or a pilaster footing, and getting through it takes a rock bit, a heavier machine or a jackhammer, with more time per hole. These are point samples. Graded tract lots sit on engineered fill, and the regional wall standards call for footings in undisturbed soil or properly compacted fill. What’s under a given yard is found on the site visit. Hardpan also slows water soaking down, so rain can sit on top of it behind a wall. The [fence posts and soil guide](https://caskfencetemecula.com/guide/fence-posts-temecula-soil/) explains how post depth is set when digging gets hard. ## County wall standards and the tract drain rule Riverside County’s 284-255 retaining wall standard and 284-256 block-wall-atop-2-ft-retaining standard share their tables with Temecula’s and Murrieta’s, all from the Western Riverside County Code Uniformity Program. One county note matters in tracts: the option of leaving head joints open in the first course as a drain is not allowed there. A tract retaining wall needs a cubic foot of clean gravel per foot of wall and a 4 in. perforated pipe sloped to drain. The county’s [tract block wall inspection program](https://building.rctlma.org/sites/g/files/aldnop406/files/2023-06/284-268_Residential%20Tract_Block_Wall_Insp-final_6_23_0.pdf) is for builders, not homeowners, and retaining walls never qualify for it. For wind, southwest Riverside County is outside the county’s special wind regions, and engineered walls here are designed for Exposure C. Neither standard covers a wall carrying a driveway, a structure or another wall above it; those are engineered. ## Building onto a wall the builder left Tying new work into an existing tract wall is its own problem. A gate opening cut into block needs a pilaster or post on each side able to carry the leaf. Temecula’s CD-24 pilaster sheet, part of the same regional program, shows the limits of a standard pilaster: only open fencing such as iron between pilasters, and gates no wider than 4 ft or heavier than 200 lb per pilaster. The county’s requirement for a particular gate is confirmed per project, but a wide RV or driveway gate is past that standard detail and needs its own posts or an engineered design. The [swing vs sliding gate guide](https://caskfencetemecula.com/guide/swing-vs-sliding-gate/) compares the two for tight side yards. Then there’s height. Adding height on top of an existing wall changes its loads, so it isn’t a matter of stacking more block. Where the yards differ in height, the county’s 284-256 detail covers a privacy wall of up to 6 ft above a retaining base of no more than 2 ft; anything taller below goes to full retaining design. A wood or vinyl screen set on its own posts inside the line is often simpler, and the [privacy fence styles guide](https://caskfencetemecula.com/guide/privacy-fence-styles/) shows the options. ## What a French Valley or Winchester project involves A first call covers the purpose and the run. A site visit then walks the line for survey pins, grade, rock, drainage and access between houses. HOA approval, neighbor notice, the county permit if one applies and a DigAlert ticket at least two working days before digging come next. Then posts are set and cured, rails and panels go up and gates are hung. The final walk checks plumb, gate swing and latch, and cleanup. Fencing falls under C-13, block under C-29 masonry and concrete under C-8, and each piece goes to a contractor licensed for it. Both center points map outside any CAL FIRE hazard zone, though zones vary by address, and the proposed Zone 0 rules would only apply in Very High zones. For a budget, see the [fence cost guide](https://caskfencetemecula.com/guide/fence-cost-temecula/) or the [cost estimator](https://caskfencetemecula.com/tools/fence-cost-estimator/), then [send the address and what you have in mind](https://caskfencetemecula.com/contact/). ## Neighborhoods, landmarks and routes - French Valley - Winchester ### Who issues permits [Riverside County Building & Safety](https://building.rctlma.org/) (Unincorporated Riverside County) ### Fire hazard zone CAL FIRE's 2025 local responsibility area map shows no hazard zone at the French Valley and Winchester center points; the zone varies by address. ### Nearby areas - [Murrieta](https://caskfencetemecula.com/service-areas/murrieta/) - [Menifee](https://caskfencetemecula.com/service-areas/menifee/) - [Temecula Wine Country](https://caskfencetemecula.com/service-areas/temecula-wine-country/) 1. 1. Lake Elsinore 2. 2. Menifee 3. 3. Murrieta 4. 4. Temecula Wine Country 5. 5. Canyon Lake 6. 6. Fallbrook 7. 7. French Valley 8. 8. Wildomar Schematic, not to scale: close-together neighborhoods are spread out so each number reads. ## French Valley questions ### Why does Riverside County, not a city, handle fence permits in French Valley? Because French Valley and Winchester are unincorporated, so Riverside County Building & Safety is the permit office. Neither Temecula nor Murrieta issues them. The county's fence height rules, in Ordinance 348, are confirmed for each address before a design is fixed. Most fences up to 7 ft are exempt from a building permit under the state code. ### How much does a backyard fence cost in French Valley? No separate French Valley range exists. National budgeting ranges run about $15 to $85 per linear foot for vinyl privacy fencing and $10 to $50 for a 6 ft wood privacy fence, with a walk gate about $200 to $1,500 and a double drive gate about $2,000 to $6,000. Block walls are priced per project. Hardpan, access to a back yard between houses and tying into an existing wall all move the number. ### Does the county's tract block wall program cover a homeowner's wall? No. Riverside County's Residential Tract Block Wall Inspection Process is a temporary program for builders putting up freestanding walls in residential tracts, with County Standard walls up to 6 ft and engineered walls up to 7 ft. Retaining walls don't qualify. A homeowner's wall goes through the county's regular permit and inspection process. ### Are retaining walls in French Valley built to a different standard than in Temecula? Nearly the same one. The county's 284-255 retaining wall standard uses the same tables and notes as Temecula's CD-25, from the shared western Riverside County program. The one difference: in tracts, the county does not allow the option of leaving out head joints in the first course for drainage, so a tract wall needs the gravel and perforated pipe drain. ### What wind speed does the county use for walls in Winchester? Southwest Riverside County is not one of the county's listed special wind regions, which are desert and pass communities. County Building & Safety lists ASCE 7-16 wind speeds of 100 mph for ordinary Risk Category II structures, with Exposure C, for areas outside those regions. Engineered walls and tall fences in French Valley and Winchester are designed to those figures. ## Related guides Learn How deep should fence posts go in Temecula soil? Why fences lean, what the auger hits under Temecula-area lots, and how height, wind and the fence system decide how deep and how wide a post footing has to be. Learn How do you get HOA approval for a fence in Temecula? What the association owes you under state law, what to put in the application so it isn't sent back, and how approval fits around the neighbor notice, permits and the build. Learn How does California's good neighbor fence law work? Civil Code 841 read line by line: who it covers, what the notice has to contain, how a neighbor can rebut an even split, and the questions it leaves for a surveyor or an attorney. Decision Guide Swing vs. sliding driveway gate: which one fits your driveway? A swing gate needs room to arc open. A sliding gate needs room to roll back. Measuring both spaces, and the slope under them, usually settles it. Decision Guide Which privacy fence style is right for your yard? How much you see through a fence, how much wind it catches and how it looks from the neighbor's side are all set by the way the boards are hung. Cost Guide How much does fence installation cost in Temecula? Per-foot budgeting ranges for every common fence, the local conditions that push a Temecula job up or down, and the public figures that sit inside the price. ## Nearby service areas City of Murrieta Building & Safety permits Murrieta A privacy wall where the yards don't match City of Menifee Building & Safety permits Menifee Post holes that stop at hardpan Riverside County Building & Safety permits Temecula Wine Country A fence that should stay under four feet