Your Project Concierge · Marin & Sonoma
Save Time, Money, and Peace of Mind on your next build. Guaranteed—or your money back.
Your decision is only as good as the information it’s based on. Instead of settling for 1 to 3 bids, why not see the market—organized, analyzed, and fully vetted—without the phone tag or the headaches?
Serving Mill Valley · Tiburon · Belvedere · Ross · Kentfield · Larkspur · and throughout Marin & Sonoma
- Builders contacted & screened32 builders
- Licensed, insured & leveled bids6 qualified bids
- Hidden scope gaps caught$8,000 – $41,000
- Homeowner hours spent on phone tag0 hours
The problem with getting 1 to 3 bids
Your decision is only as good as the information it’s based on.
The Usual Way
Why most homeowners stop after 1 to 3 quotes
Playing phone tag. An endless stream of random contractors walking through your house. Giving the same answers over and over again—while wondering:
- “What do I actually need to ask them?”
- “What did this quote leave out that the other one included?”
- “Does this builder really know what they’re doing?”
It’s understandable that most homeowners stop at two or three bids. But because bids for the exact same project routinely swing by 24% to 40% or more, a small sample can easily cost you tens of thousands of dollars.
With Your Project Concierge
See 5 to 15+ vetted bids—with zero headaches
Imagine wasting no time, having no awkward sales visits, and sitting down to a complete set of bids—already organized, leveled line by line, and fully vetted.
- You tell us once. We build one clear scope so every builder prices the exact same job.
- We reach out to 25–50 licensed builders and handle every call, follow-up, and question.
- We level every bid apples-to-apples so missing items and lowball allowances can’t hide.
We guarantee we will save you time, money, and provide certainty. We only charge a fraction of what we save you—or we refund every cent.
Two Ways to Work With Us
Starting from scratch, or already holding a quote?
Pick the door that matches where your project is right now.
Door 1 · Starting a Project
Full Project Concierge
For ADUs, major remodels, additions, custom homes, kitchens, pools, and landscape projects where you want the whole bidding process handled from day one.
- We write the standardized 28-line-item scope from your plans or project intake.
- We vet & invite 25–50+ licensed local builders and deliver 5 to 15+ leveled bids in one complete Bid Report.
- 3× Savings Guarantee: Our Top Pick comes in at least 3× our flat fee below the typical vetted quote, or 100% of your fee is refunded.
Door 2 · Already Have a Quote in Hand
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- We gather local bids on the same scope so your quote is compared apples to apples.
- In 3 to 5 days you get your quote's market percentile plus a Trust Score for every bidder.
- If we find a cheaper bid with an equal or higher Trust Score, you can unlock it for a share of the savings. If we don't, you pay $0.
Simple, written process
How Project Concierge works
No meetings required. Everything happens in writing, on your schedule.
- 1
Tell us about your project once
Complete a straightforward online questionnaire and share any plans, photos, or a quick phone scan of the space.
- 2
We write one clear scope
Every builder prices the exact same 28-line-item bid form, so nobody can look artificially cheap by leaving essentials out.
- 3
We vet & gather the bids
We verify state licenses, bonds, workers’ comp, liability insurance, local permit history, and reviews—then collect and level the quotes.
- 4
You get the Bid Report
See our Top Pick, 2–3 runners-up, and every bid side by side. You choose who to meet and sign directly with your builder.
The Deliverable
What’s inside your Bid Report
- Your savings headline: the typical vetted quote compared directly against our Top Pick.
- Our Top Pick and 2–3 runners-up, with clear reasons why we’d hire them.
- Every bid side by side: base price, leveled price, schedule, rating, license, bond, workers’ comp, and insurance status.
- Scope gaps exposed: what each builder excluded or under-allowed, and what it truly costs to add back.
- Payment-law check: we flag any deposit request above California’s legal limit.
- Exact questions to ask your finalists before signing a contract.
Not the cheapest bid. The right builder, at a fair price.
The lowest raw quote is often the most expensive mistake once change orders start. We put every bid on the same line items and add back anything a builder left out—so you see the real price before you sign.
100% independent: No builder can pay to be listed or recommended. We never take referral fees, commissions, or kickbacks from contractors.
The 3× Savings Guarantee
We only charge a fraction of what we save you—or we refund every cent.
Our Top Pick’s leveled price will come in at least three times our fee below the typical vetted quote for your project. If it doesn’t, our service is free and we refund 100% of your fee.
How it works in plain English: the “typical quote” is the median of the vetted, leveled bids we receive for your project (minimum 5 vetted bids). If fewer than 5 vetted bids come in, we extend bidding for up to 3 weeks; if it still doesn’t reach 5, we refund 100% of your fee. The guarantee is measured on our Top Pick whether or not you choose to hire them.
Transparent Fees · Door 1 (Project Concierge)
Simple, flat pricing
Always a flat fee—never a percentage of your build cost—so our only incentive is saving you money.
Sonoma Starter
$1,500
Starter projects in Sonoma County.
Guarantee: $4,500+ savings
Kitchen, Pool & Landscape
$2,500
Kitchens, pools, and outdoor projects.
Guarantee: $7,500+ savings
Marin Signature
$5,000
ADUs, additions & major remodels ($250k–$1M).
Guarantee: $15,000+ savings
Major Project
$10,000
Whole-home remodels & builds ($1M–$2.5M).
Guarantee: $30,000+ savings
Estate
$15,000
Custom homes & estates ($2.5M+).
Guarantee: $45,000+ savings
Optional add-on: Materials Sourcing (+$500) for appliances, fixtures, and cabinetry purchased in your name, with any trade discount or commission disclosed in writing. Already have a written quote in hand? Rank your quote for free, powered by RankMyQuote →
Independence & Clarity
Our bright line: we work only for you
North Bay Build Advisory is an independent Homeowner Consultation Service.
- We never bid on or build your project.
- We never sign or negotiate contracts on behalf of you or any contractor—you contract with and pay your chosen builder directly.
- We never manage crews or supervise construction on site.
- We never take money from builders—no referral cuts, lead fees, or paid placements, ever.
Ready to get all the information before you build?
Email Hannah, your Project Concierge contact, with a sentence or two about your project (or attach a quote you'd like ranked). We’ll reply in writing with next steps—no sales call required.