Custom Home Feasibility in Redmond, WA

A feasibility study identifies the regulatory, environmental, and site-specific factors that determine what can be built on a property in Redmond. Redmond’s zoning code, sensitive area regulations, and stormwater requirements can significantly influence custom home design. Our feasibility analysis for Redmond includes:

• Zoning, allowable uses, and development standards (RZC – Redmond Zoning Code)

• Required setbacks, height limits, and lot coverage

• Critical areas (steep slopes, erosion hazards, wetlands, streams, riparian zones, floodplains)

• Shoreline management requirements near Lake Sammamish and major streams

• Tree protection and significant tree retention rules

• Sewer, water, and utility availability (City of Redmond + PSE)

• Preliminary stormwater requirements under the Redmond Stormwater Technical Notebook

• Access requirements, fire apparatus standards, and driveway slope limits

• High-level grading and overall site suitability

Our feasibility reports outline buildability and provide a clear path toward Redmond permit approval.

Civil Engineering for Custom Home Sites in Redmond

Once feasibility confirms development potential, we provide complete civil engineering services tailored to Redmond’s review standards. This includes:

• Site plans meeting Redmond Development Services submittal requirements

• Grading plans with cut/fill analysis, slope evaluation, and retaining wall needs

• Stormwater design (infiltration feasibility, flow control, water quality, and dispersion systems)

• Coordination of infiltration testing and soil evaluation

• Driveway design and slope compliance

• Utility design for sewer, water, and power routing

• Erosion and sediment control plans

• Earthwork calculations

• Right-of-way improvements when required by Redmond Public Works

• Construction documents prepared for full permit review

Our plans comply with Land Use Code requirements and support the architectural and structural design teams.

Permit Management & Project Coordination in Redmond

Redmond’s review process typically involves Planning, Public Works, Stormwater Engineering, and Fire. We manage the process to maintain predictable timelines:

• Preparing complete permit application packages

• Responding to correction comments and technical requests

• Coordinating with surveyors, geotechnical engineers, arborists, architects, and builders

• Monitoring review timelines and required resubmittals

• Ensuring compliance with Redmond Zoning Code and Stormwater Technical Notebook

This reduces administrative delays during the pre-construction phase.

Common Redmond-Specific Constraints

Streams, Riparian Buffers & Wetlands

Many areas—including Education Hill, Idylwood, and neighborhoods near Bear Creek—contain regulated buffers requiring careful site planning.

Tree Retention Requirements

Redmond enforces significant tree preservation rules that may affect building placement and grading.

Stormwater Requirements

Depending on soils, Redmond may require infiltration systems, flow control, or enhanced water quality treatment.

Steep Slopes & Geologic Constraints

Some parcels include slopes or erosion hazards that require geotechnical evaluation.

Right-of-Way Improvements

Frontage improvements may be triggered by project scope and roadway classification.

Identifying these conditions early prevents redesigns and unexpected cost impacts.

Start Your Redmond Custom Home Feasibility Review

A successful custom home project begins with accurate information and a clear understanding of Redmond’s regulations. McInnis Engineering provides feasibility studies, civil engineering, and permit management to support homeowners and builders throughout the permitting process.

Contact us to begin a feasibility assessment or discuss your Redmond property.