How Much Does Tiny Home Certification Cost?

Tiny home certification costs vary widely depending on which program you use and how many units you're building. A DIY builder doing one unit has very different math than a manufacturer running twelve units a year. This post breaks down the real numbers so you can plan accordingly.

We cover RVIA, NOAH, PWA, and CERTAFI. Where exact figures are publicly available, we use them. Where they aren't, we say so. Verify current pricing directly with each program before committing.

The Two Types of Costs to Think About

Every certification program has two categories of cost: what you pay to get set up, and what you pay per unit. The balance between those two numbers changes everything depending on your volume.

A program with high setup costs and low per-unit costs favors manufacturers building many units. A program with no setup costs and a flat per-unit fee favors builders doing one or two units at a time. Neither is better in the abstract. It depends on your situation.

RVIA Costs

RVIA does not publish its fee schedule publicly, but setup costs are known to be substantial. Initial membership fees for manufacturers are significantly higher than any other program covered here, often described as several times more than what NOAH or PWA charge. Annual dues and ongoing fees apply as well.

On a per-unit basis, RVIA does not charge per unit the same way other programs do. The manufacturer pays for membership and facility audits. Individual units are inspected internally by the manufacturer using RVIA's Traveler checklist, not by an RVIA inspector directly.

For a large manufacturer building hundreds of units per year, those costs spread across a big volume and the per-unit math can work out. For anyone building fewer than several dozen units annually, or for a DIY builder doing one unit, RVIA is not a realistic option financially or structurally. RVIA requires manufacturer membership and is not open to individual builders.

Best for: Established manufacturers with high volume and the budget to support ongoing membership costs.

NOAH Costs

NOAH is more transparent with pricing. For individual builders and small operations, the cost runs around $1,760 per unit. Larger manufacturers can access a per-seal pricing model closer to $500 per seal, which applies when producing at volume.

There are some additional fees depending on your situation, such as plan review fees or resubmission costs if stages require correction. The specific amounts are worth confirming directly with NOAH before you start.

For a DIY builder doing one unit, NOAH's per-unit cost is the clearest number to plan around. For a manufacturer doing six or more units per year, the math starts to look different and the per-seal model becomes more relevant.

Best for: DIY builders and small manufacturers who need strong recognition and are building a small number of units per year.

PWA Costs

PWA pricing is in a similar range to NOAH for most builders. Exact figures are not prominently published and can vary depending on the program tier and unit type, so you should contact PWA directly for a current quote.

Like NOAH, PWA charges on a per-unit basis rather than a membership model. Setup costs are moderate compared to RVIA.

Best for: Builders who have verified PWA acceptance with their specific insurer or lender and want an alternative to NOAH at a comparable price point.

CERTAFI Costs

CERTAFI publishes its pricing directly. There are no setup fees.

Subscription pricing:

• $499/month — Starter (up to 2 units per billing period)
• $799/month — Growing (up to 4 units per billing period)
• $1,099/month — Pro (up to 6 units per billing period)

Pay per unit (no subscription required):

• $849 per unit, billed when you create the unit

On a subscription plan, the per-unit cost works out to roughly $183 to $250 per unit depending on your tier and how consistently you use your monthly capacity. That is substantially lower than per-unit pricing at NOAH or PWA for builders producing multiple units per month.

For a builder doing one unit, the $849 flat fee is competitive with NOAH. For a builder doing six units a month, the $1,099 Pro subscription works out to roughly $183 per unit, which is significantly cheaper than paying $1,760 per unit through other programs.

As a newer program, CERTAFI is still building lender and insurer acceptance. If your buyer's lender requires a specific program, confirm acceptance before choosing CERTAFI.

Best for: Builders producing multiple units per year who want predictable costs and fast turnaround. Also works for single-unit DIY builders at the $849 pay-per-unit rate.

Side-by-Side Cost Comparison

The Hidden Cost: Time

Price is only part of the equation. The other cost is time, and it varies significantly by program.

Programs that require scheduling physical inspections or sending paperwork by mail can add weeks to your build timeline. If your buyer is waiting on financing and the lender is waiting on the certificate, every extra week has a real cost for everyone involved.

Remote inspection programs, where you submit photos and video through an app or online portal, generally move faster. Some provide stage approvals within days. Others within hours. That difference matters when you're trying to keep a build moving.

What You Actually Get for the Money

The deliverables at the end of certification vary by program. Before choosing based on price alone, it's worth understanding exactly what you receive.

At minimum, every program should provide a certificate document you can share with insurers, lenders, and RV parks. Beyond that, look for:

• An inspection record showing each stage was reviewed
• A serial or identification number unique to your unit
• A verification method that lets a third party confirm the certification without contacting you directly

Some programs provide a public URL or QR code that anyone can scan to verify a unit's certification status. That kind of permanent, verifiable record is increasingly what lenders and insurers expect to see. If a program can't tell you exactly what documentation you'll receive before you pay, that's worth asking about.

Running the Numbers for Your Situation

Here is a simple way to think through the cost based on your volume.

If you're building one unit as a DIY project, the most relevant comparison is the flat per-unit cost across programs that accept individual builders. NOAH is around $1,760. CERTAFI is $849 flat. Confirm acceptance with your insurer and lender before deciding.

If you're building two to four units per year, run the total annual cost for each program including any membership or subscription fees. The Starter plan at $499/month covers up to 2 units per month, so four units per year is well within that limit, costing $5,988/year. At $1,760 per unit through NOAH, four units cost $7,040. The numbers favor a subscription, but only if the program is accepted where you need it.

If you're building more than six units per year, subscription or volume pricing becomes increasingly important. At that scale, a per-unit cost difference of $500 to $1,000 is a significant annual difference in overhead.

Final Note

Certification cost matters, but it is not the only thing that matters. Acceptance by your specific lender and insurer, the quality of the documentation you receive, and the time it takes to get through the process all factor into the real cost of certification.

Get quotes from multiple programs. Ask your insurer which ones they accept. Ask what documentation you'll receive before you pay. Then make the decision that fits your build, your buyers, and your volume.

Pricing in this post reflects publicly available information as of early 2026 and may change. Verify current costs directly with each program.