Planning guide · updated October 2026
What it costs to build a new custom home in Templeton: Michael Harrod’s rough per-square-foot ranges, the water, sewer and County fees that sit on top, and what changes when the lot is outside the district.
The short answer
As a rough guide, Michael Harrod puts a custom home with us at about $300–$400 per square foot and up, about $500–$600 per square foot with taller ceilings, stone or a gated-community setting, and $600+ at the very high end, with a premium for hillside lots. In Templeton, the biggest local line item is often water: inside the Templeton Community Services District, the water and sewer impact fees alone are listed at $58,582 for a new home. Outside the district, plan on a well and septic instead. Every home is site- and design-specific; this is not a quote.
The ranges
Rough cost per square foot in 2026
These are Michael Harrod’s rough ranges for building a custom home with us in 2026. The price per square foot depends on what the home is:
| Type of home | Rough cost per sq ft |
|---|---|
| Custom home | $300–$400/sf and up, depending on the home |
| Higher-end custom Taller ceilings, stone, gated-community homes | About $500–$600/sf |
| Very high end | $600+/sf and up, with no real upper limit |
Hillside lots add a premium. A sloped lot usually adds cost for a well and septic, grading, engineered foundations and access. How much depends entirely on the site, so we price it after we walk the lot.
This is a rough range, not a quote. Every home is site- and design-specific, so your number can land above or below these ranges. For a real figure, call 805-712-8993 or request an estimate. The first site visit is free.
Templeton costs
What sits on top of the ranges in Templeton
Why the same house costs more or less in Templeton
Two of our finished homes are in Templeton’s Santa Ysabel Ranch, so we know the town well. Templeton is not a city. It is unincorporated San Luis Obispo County, and water, sewer and fire service come from a community services district. Whether your lot is inside that district decides a big share of the local cost.
1. Water and sewer impact fees
The Templeton Community Services District (TCSD) charges one-time impact fees to connect a new home. Its current master fee schedule (revised May 19, 2026) lists a water impact fee of $46,527 per 575-gallon-per-day unit and a sewer impact fee of $12,055 per 176-gallon-per-day unit, plus a $350 will-serve letter application and meter installation (from $670 for a 5/8-inch meter). The fees don’t include the service line and other work to reach your lot.
2. Water availability
TCSD posts how many water units it has left to sell; its Engineering page listed 329 available units in May 2026, and the District runs a water supply buffer policy. Confirm a will-serve letter for your lot before you commit to a design.
3. County permits and fees
Permits run through San Luis Obispo County Planning & Building and the PermitSLO portal. The County’s 2026–2027 County fee schedule lists $8,657 in public facility fees per new single-family home, on top of plan check, permit and inspection fees.
4. Outside the district: well and septic
Rural parcels outside TCSD’s service area, such as many in the west-side hills, usually rely on a private well and a septic system. Budget for well drilling, a pump, storage tank and any treatment, and a septic system designed around percolation tests that meets the County’s Local Agency Management Program for septic systems.
5. Oaks, slopes and fire zones
West of Highway 101, many Templeton lots are oak-covered and sloped. Grading, retaining walls, engineered foundations and a driveway that trucks can climb all add cost; our hillside lot guide covers them. Check the address on the CAL FIRE Fire Hazard Severity Zone maps, because a mapped fire zone changes the roof, siding, vents, windows and decks.
What else belongs in a Templeton budget
- Design and engineering: plans, structural engineering, energy compliance, survey and soils report.
- School fees, charged per square foot by the school district.
- Fire sprinklers, required in new California homes.
- Pool, patios and landscaping: both of our Templeton homes include a pool and spa. Landscaping is done in-house by our sister company, Paso Robles Landscaping.
- Contingency and carrying costs while permits and construction run.
How long it takes
Our Modern French Country in Templeton, a 3,500 sq ft single-level home with a pool and spa, took 14 months to build. Water and sewer will-serve letters, County review and, on rural lots, well and septic work all come before construction. See the build timeline guide.
How we put a real number on it
- Free lot walk. We check district service or well and septic, slope, oaks, access and fire zone.
- Utility check: will-serve letters from TCSD, or a well test and septic design.
- Written estimate from the plans with every local fee listed, and allowances for selections still open.
- Read more about how a job runs.
Building nearby? See our Templeton builder page, Paso Robles, Atascadero and Santa Margarita, or the San Luis Obispo County cost guide.
How much does it cost per square foot to build a custom home in Templeton?
As a rough range from Michael Harrod: about $300–$400 per square foot and up, about $500–$600 for homes with taller ceilings, stone or a gated-community setting, and $600+ at the very high end. Hillside lots add a premium. These are rough ranges, not a quote.
What are the Templeton CSD water and sewer fees for a new home?
The Templeton Community Services District’s fee schedule (revised May 19, 2026) lists a $46,527 water impact fee per 575-gallon-per-day unit and a $12,055 sewer impact fee per 176-gallon-per-day unit, plus meter and inspection fees. Confirm the current amounts with the District.
Who issues building permits in Templeton?
San Luis Obispo County. Templeton is unincorporated, so permits go through County Planning & Building. The County’s 2026–2027 schedule lists $8,657 in public facility fees per new single-family home.
Is there water available for a new home in Templeton?
Inside the district it depends on available water units; TCSD listed 329 in May 2026. Outside the district, homes rely on private wells. We help you confirm water before you buy or design.
Have you built in Templeton?
Yes. Our Modern French Country and Modern Ranch homes are both in Santa Ysabel Ranch, Templeton.
Cost by town
Custom home cost in other towns
Same rough ranges, different local costs: permits, fees, water, trees and site work change from town to town.
Planning guides
Budget and planning guides
What a custom home costs on the Central Coast
Rough per-square-foot ranges for SLO, Monterey and Santa Barbara counties, and what moves a home between them.
Cost to build a custom home in SLO County
What drives the budget on a Central Coast custom home, and how to get a real number.
ADU cost on the Central Coast
Detached, attached or conversion: what moves the price of an ADU or guest house.
Home remodel cost in Paso Robles & SLO County
Kitchens, baths, whole-home remodels and additions: the cost drivers we see.
Building on a hillside lot
Grading, foundations, access and drainage: what a sloped lot adds before the house starts.
How long it takes to build a custom home
Design, permits and construction, with the real build times from our own homes.
Building with a well and septic in North County
Wells, septic under the County LAMP, Paso basin and will-serve letters: what a rural North County lot needs before the house.
Building in a fire hazard severity zone
What Chapter 7A (and the California Wildland-Urban Interface Code) change on the roof, vents, walls, windows, decks and landscape.
Build or buy a custom home on the Central Coast
Honest comparison: custom new build vs buying an existing home in SLO, Monterey and Santa Barbara counties.
SLO County building permits: city vs county
Seven cities vs unincorporated PermitSLO, planning vs building, coastal permits and fire-zone steps.
Start your project
Building in Templeton? Get a written estimate.
A few details help us call you back with useful answers about budget, schedule and permits.
805.712.8993michael@harrodbuilt.com
1345 Riverside Ave, Paso Robles, CA 93446
CSLB License #986950
