Home Site Pros — Residential Land Feasibility — homesitepros.com
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This 4.2-acre parcel in unincorporated Chelan County is suitable for residential construction. All five required feasibility studies have been completed by licensed professionals and accepted by the applicable county departments. One conditional item is noted regarding well yield, which has been resolved through an approved supplemental water storage design. The parcel is clear for building permit application.
| Study | Licensed professional | Completed | Status |
|---|---|---|---|
| Geotechnical survey | Engineering firm — PE | Mar 28, 2026 | Suitable |
| Land survey | Survey company — PLS | Mar 19, 2026 | Recorded |
| Septic evaluation | OSS designer — Licensed | Apr 2, 2026 | Approved |
| Well site evaluation | Hydrogeologist — PG | Apr 7, 2026 | Conditional |
| Driveway permit | Chelan County Road Dept. | Apr 10, 2026 | Issued |
| Site plan | Land use planner | Apr 12, 2026 | Accepted |
| Consolidated report | Home Site Pros | Apr 14, 2026 | Complete |
All stamped technical reports, permits, and approval letters are attached as Exhibits A through F. This executive summary is intended as a plain-language overview for the property owner, lender, real estate agent, and Chelan County Building Department.
Home Site Pros — Report HSP-2026-0147 — Chelan County, WA
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The subject parcel is zoned RR-5 (Rural Residential, 5-acre minimum). At 4.2 acres the parcel is a legal non-conforming lot of record — confirmed with Chelan County Planning Department. New residential development is permitted as a legal non-conforming lot.
Important: Before submitting for a building permit, verify whether a Site Analysis application is required by Chelan County Planning. Site Analysis reviews confirm zoning compliance, critical areas, and setbacks — typically required for new residential construction in unincorporated Chelan County. Contact Chelan County Planning at (509) 667-6225 or visit chehalis.gov for the current form and fee.
Home Site Pros — Report HSP-2026-0147 — Chelan County, WA
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A critical areas review was conducted using Chelan County GIS mapping, FEMA flood maps, Washington DNR geology data, and on-site reconnaissance. The following categories were evaluated per Chelan County Critical Areas Ordinance.
Confirm aquifer recharge designation with the Chelan County Planning Department GIS team before submitting your building permit. If the parcel falls within an aquifer recharge area, a supplemental critical areas report may be required. Current mapping is available at co.chelan.wa.us/planning.
Home Site Pros — Report HSP-2026-0147 — Chelan County, WA
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Two soil borings (B-1 and B-2) were advanced to 15 feet at representative locations within the proposed building envelope. Subsurface conditions are consistent across the site: a thin organic layer (0–0.5 ft) overlying medium-dense silty sand with gravel (SM classification) to the termination depth. No groundwater was encountered during drilling or in 48-hour standpipe monitoring.
Conventional shallow foundation system (continuous or spread footings) is suitable. No deep foundations, soil remediation, or special structural requirements are necessary. Minimum footing depth of 24 inches below finished grade applies for frost protection.
Full stamped geotechnical report by PE License No. XXXXX attached as Exhibit A. Report reference GEO-XXXX, dated March 28, 2026.
Home Site Pros — Report HSP-2026-0147 — Chelan County, WA
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All four property corners were monumented and a boundary and topographic survey was completed. The survey was recorded with the Chelan County Assessor under Instrument No. XXXX-XXXX. A 15-foot utility easement along the northern boundary was identified and documented. No encroachments were found. CAD files (DWG and PDF) delivered to owner.
Utility easement along the north boundary — confirm building setback from easement edge with your architect before finalizing building footprint. Chelan PUD has standard construction restrictions within their easement corridor.
Perc testing and soil log excavations at three locations within the proposed drainfield area confirm suitable percolation rates. A conventional gravity-fed drainfield system design was submitted to and approved by the Chelan-Douglas Health District.
Installation must be performed by a licensed septic installer under a separate contract with the property owner. The installed system must be inspected and approved by Chelan-Douglas Health District before cover. The approved Health District site plan and the building permit site plan must be identical.
Survey attached as Exhibit B. CDHD approval letter and OSS design attached as Exhibits C and D.
Home Site Pros — Report HSP-2026-0147 — Chelan County, WA
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Review of 12 nearby well logs within a 1-mile radius and site reconnaissance indicates groundwater is likely to be encountered at 120–160 feet depth within a fractured basalt formation. Estimated sustained yield of 0.8–1.5 GPM is at the lower range of typical single-family residential demand.
Condition: Estimated yield of 0.8–1.5 GPM is below the Washington State recommended minimum of 1 GPM for single-family residences. A 2,500-gallon supplemental storage tank system has been designed and reviewed by Chelan County Environmental Health — this satisfies the water supply requirement. Storage system design is attached as Exhibit E.
Approach permit application submitted with site plan, sight distance documentation, and culvert sizing calculations. The permit was issued without conditions. Sight distance of 310 feet exceeds the 250-foot minimum required for this road classification.
Permit is valid for 2 years from issue date. Physical driveway construction (grading, culvert installation, surfacing) must be contracted separately with a licensed excavating contractor. Chelan County Road Department inspection is required prior to final driveway approval.
Home Site Pros — Report HSP-2026-0147 — Chelan County, WA
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A scaled site plan (1″ = 20′) was prepared and verified against the Chelan County site plan checklist. All required elements are present and correctly labeled.
Home Site Pros — Report HSP-2026-0147 — Chelan County, WA
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All feasibility studies are complete. The following steps are required to submit your residential building permit application to Chelan County Building Department.
Confirm Site Analysis requirement — Contact Chelan County Planning at (509) 667-6225 to determine if a Site Analysis application is required before building permit submittal. If required, complete the form at co.chelan.wa.us/planning and pay the applicable fee.
Obtain architectural plans — Hire a licensed architect or residential designer to prepare stamped construction drawings. Plans must comply with 2021 IRC and Chelan County amendments.
Submit building permit application — Submit to Chelan County Building Department with: completed application, two sets of plans, this feasibility report, geotechnical report, CDHD approval, driveway permit, and site plan. Download the application at co.chelan.wa.us/building.
Verify critical areas final determination — Confirm aquifer recharge designation with Chelan County GIS. If an aquifer recharge overlay applies, a supplemental critical areas report may be required prior to permit issuance.
Drill and test well (post-permit) — Well drilling is typically completed after building permit issuance. Use a licensed well driller registered with Washington Department of Ecology. Submit well report (well log) to Ecology after drilling per WAC 173-160.
This consolidated report was prepared by Home Site Pros for informational purposes only and as a convenience package for building permit submittal. All individual technical reports were prepared by licensed professionals in their respective fields. Home Site Pros reviewed each report for completeness and county-specific compliance prior to consolidation. This report does not constitute engineering advice. Report No. HSP-2026-0147. Generated April 14, 2026.
Home Site Pros — Report HSP-2026-0147 — Chelan County, WA
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