BC Engineering Group

06/16/2026

Sonoma County Ordinance #6406 – Temporary Housing Opportunity?

A new ordinance from the Sonoma County Planning Commission expands the opportunity for temporary housing on most parcels.

06/15/2026

Three quick site signs a parcel might need more work than the listing suggests:
• Wet or poorly draining soil, which can indicate high seasonal groundwater or low permeability.
• Tight setbacks to wells, property lines, or structures may limit septic placement.
• Challenging grading or drainage that conflicts with wastewater layout.

Soil controls how wastewater moves and filters underground, and not every lot in Sonoma County handles it the same way. A simple soil evaluation can prevent delays, redesigns, and added costs later in the permitting process.

Early items to consider on your project:
• A soil test before finalizing building plans
• Confirmation of seasonal groundwater levels
• Coordination of site grading with your wastewater layout

What do you know about the soil conditions on your property? 🌱

06/12/2026

Bringing engineering and planning together early prevents delays later. 🏗️🌿

At BC Engineering Group, our team in Santa Rosa works across civil engineering, land planning, landscape architecture, and wastewater system design so projects move forward without gaps between disciplines. When everyone sits at the same table from the start, site constraints, permitting steps, and infrastructure needs are addressed before they become costly surprises.

• Review grading, drainage, and utilities at the first concept stage
• Confirm wastewater system capacity before submitting plans
• Align landscape plans with civil drawings to avoid rework
• Meet with local agencies early to clarify requirements

Early coordination helps prevent delays and reduces costly rework.

06/11/2026

Buying land for an ADU? Check the soil and slope before you design the building. 🏗️

In Santa Rosa and across Sonoma County, what’s under the surface and how steep the site is will shape where an ADU fits and what it will cost. Expansive clay can crack foundations, high groundwater can flood trenches, poor drainage can stall permits, and steeper slopes often increase grading, foundation, and retaining-wall costs.

Before you move forward:
• Order a geotechnical soil report 📄
• Confirm groundwater depth in winter and summer 💧
• Map drainage and slope across the site 🗺️
• Review local grading rules with the city or county 🏛️

A few early tests can prevent redesigns and delays later. What do you know about the ground and slope beneath your next ADU site?

06/09/2026

California’s Construction General Permit (CGP) and Stormwater Pollution Prevention Plan (SWPPP) Requirements

Understand California's Construction General Permit (CGP) and Stormwater Pollution Prevention Plan (SWPPP) requirements. Ensure compliance, avoid penalties, & protect waterways. Build confidently with expert guidance.

06/08/2026

Know your zoning before you design anything. 🏗️📍

In Santa Rosa and across Sonoma County, zoning rules determine what you can build, how tall it can be, and where septic systems can be placed. Septic permits and wet-season restrictions often affect when site work can happen, so planning for drier summer months can prevent delays during permitting.

• Confirm the property’s zoning district with the city or county
• Review height, setback, and lot coverage limits, and check septic setback requirements
• Check for overlay zones such as flood or fire hazard areas and wet-season restrictions
• Ask whether your project needs a use permit, design review, or a septic permit

A few hours of research early can prevent months of redesign later. Plan for drier summer months to avoid permitting delays. 🤔

06/05/2026

Time-sensitive: A driveway location that limits where a septic system can go can reshape your entire site plan and trigger costly redesigns and permitting delays. 🏗️📍

When civil engineering, land planning, landscape architecture, and wastewater design coordinate from the start, projects move through permitting with fewer surprises. In Santa Rosa and across Sonoma County, delays often begin when driveway placement, grading, and utilities are handled separately.

Immediate priorities:
• Meeting with the full design team before submitting plans
• Confirming how grading, drainage, and driveway placement affect building siting
• Reviewing wastewater capacity early on constrained sites
• Checking local agency requirements before finalizing layouts

Coordinating the team now reduces redesign and added review cycles. Save this for later. 📌

06/04/2026

A site walk starts with more than a survey rod and a set of plans. It starts with a conversation. 📍

At BC Engineering Group, civil engineers, land planners, landscape architects, and wastewater designers sit at the same table from day one. Roads align with grading. Drainage works with the land. Open space connects with infrastructure. 🌿

That’s the integrated advantage. Fewer handoffs. Clear coordination. Projects that move from concept to construction across Santa Rosa, Sonoma County, and throughout Northern California. 🏗️

06/04/2026

🎓🌞 Cheers to the 6th Grade Graduates! 🌞🎓

Congratulations to San Miguel's graduating 6th grade class on reaching this exciting milestone! As the school year comes to a close, we hope they enjoy this well-deserved day of fun, laughter, and celebration with their classmates.

Wishing the Class of 2026 an awesome picnic, a memorable celebration, and an incredible summer ahead. 🎉🏊‍♀️🌞🍉🍔✨

06/03/2026

A simple visual check, such as spotting low spots and standing water, can hint at drainage trouble. 🧐

In Sonoma County, soil type affects foundations, drainage, and wastewater systems more than most people expect. A simple soil review early on can prevent redesigns, permit delays, and added costs later.

Key site factors:
• Soil report: drainage limits and expansion risk
• Groundwater depth during wet months
• Alignment of foundation and septic design with actual site conditions
• How grading will change water flow across the property

A small investment in site knowledge at the start can shape every decision that follows.