NADA Mobile Home Value — What It Is, How to Read It, and Where It Falls Short

The NADA Manufactured Housing Appraisal Guide is the industry-standard reference for used mobile home valuation. It is also incomplete. What sellers use alongside it — and why the two-source method clears more accurate prices.

The NADA mobile home value is a book-value estimate published by the J.D. Power NADA Manufactured Housing Appraisal Guide. It uses the home's manufacturer, model, year, size, and geographic region to calculate a base retail value, then adjusts for depreciation and condition. Lenders, insurance carriers, and county tax assessors rely on it. Private-party buyers and sellers rely on it as one data point. It is not the whole picture.

The gap between the NADA book value and the price a private-party home actually clears at is often 10% to 25%. Understanding why closes that gap.

The short version

• NADA is the industry standard for base valuation. Lenders, insurers, and assessors reference the guide by default.
• The book value uses region, year, make, model, and size. It does not know the specific condition, the local market temperature, the land status, or the recent comparable sales in the neighborhood.
• Real clearing price = NADA base × condition multiplier ± local market adjustment ± add-ons ± land status.
• The free consumer-facing versions of NADA online are limited. The full appraisal-grade data lives in the paid trade guide, which most private sellers never see.

What NADA actually calculates

The NADA Manufactured Housing Appraisal Guide has been the industry standard for decades. J.D. Power acquired NADA and continues to publish the guide quarterly. The methodology combines three inputs:

1. Original manufacturer suggested retail price for the specific make, model, year, and size, drawn from historical shipment records maintained by HUD's Manufactured Housing Program.
2. Depreciation curve based on age, applied at the national level with regional adjustments. Manufactured homes depreciate more slowly than vehicles but faster than site-built houses.
3. Regional market multipliers to account for the difference between, say, a manufactured home in coastal Florida and the same home in rural Michigan.

The output is a two-number range: a low retail (rough condition) and a high retail (excellent condition), for the base home. It does not include add-ons, land, or specific local comparable sales.

That is the ceiling and floor. The specific price a home clears at lives inside that range, and the deciding factors are condition, land status, add-ons, and local market temperature.

Where NADA is right — and where it is not

NADA is right for:

• The base retail value of a specific make/model/year in a specific census region
• Comparative benchmarking across similar homes
• Insurance replacement-value estimates
• County tax-assessment baselines

NADA does not know:

• The specific condition of the home (was the roof replaced in 2024? are there settling issues in the frame?)
• The land status — is the home on rented lot in a park, or on owned land with a permanent foundation?
• Local market temperature — is the county in a housing boom or a slow rebuild?
• Add-ons — a $9,000 HVAC replacement, a $15,000 addition, a $6,000 metal roof
• Recent comparable sales in the neighborhood

That is why the NADA number is a starting point, not a listing price.

The two-source method

Serious private-party sellers cross-reference NADA against real comparable sales. Two sources, one number.

Source 1: The NADA base value. Get the home's book value from the NADA guide, or use the free consumer-facing version at datacomp.com/nadaguides if the full appraisal-grade guide is not accessible.

Source 2: Three to five recent comparable sales. Homes of similar make, size, year, and land status that have sold in the last twelve months within a fifty-mile radius. Pull them from:

• The county tax assessor's records (for homes titled as real property)
• MHVillage recent asking-price data
• Zillow or Redfin for real-property titled manufactured homes
• The park office if selling in a mobile home community — most park managers know recent in-park sale prices

Average the three-to-five comps and compare against the NADA range. The clearing price is almost always within 15% of that average, adjusted up or down for the home's condition and add-ons.

The condition adjustment

The NADA range is condition-blind. The clearing price is not.

A rough guide to condition multipliers used by private-party sellers:

• Excellent (near-new, all systems recent, no visible wear): NADA high retail, or slightly above with add-ons
• Good (well-maintained, no major issues, some cosmetic wear): NADA midpoint
• Fair (functional but visible wear, a few deferred repairs): NADA low retail
• Rough (major deferred maintenance, HVAC or roof issues, structural questions): 60% to 80% of NADA low retail

A seller who lists in "good" condition at the "excellent" price sits. A seller who lists in "excellent" condition at the "good" price under-prices. Match the condition to the number.

Land status changes the number

The single largest variable NADA does not capture: the land.

A manufactured home on owned land with a permanent foundation is titled as real property in most states. Its value follows real estate comparables — often 30% to 100% above the NADA book value for the structure alone, because the land carries most of the appreciation.

The same home in a leased mobile home community, on wheels, sells at or slightly below the NADA book value. There is no land component to appreciate, and the buyer inherits the lot lease with all of its terms.

The same home again, on wheels, being sold separately from any lot — a portable home ready for delivery — sells at the NADA base for the structure, with the buyer paying delivery and setup separately.

When pricing, decide first which of the three the sale is. The number changes accordingly.

Portable homes get pulled toward the national midpoint

The other variable NADA is thin on: whether the home can be moved.

A single-wide, park model, tiny house on wheels, or container home can be sold to a buyer anywhere in the country. That means the effective market is national, and the price gets pulled toward the national midpoint rather than the local one. In a slow local market, that raises the clearing price. In a hot local market, it caps it.

A foundation-affixed double-wide or triple-wide has a local market only. The price is set by the local comps, up or down.

For a seller with a transportable home in a slow local market, this is meaningful. The NADA regional number underprices the home relative to what a buyer from a hotter market will pay. Cross-referencing NADA against national listing prices — not just local — surfaces the real ceiling.

The free consumer versions and what they miss

The full NADA Manufactured Housing Appraisal Guide is a paid trade publication, primarily used by lenders, insurance carriers, and licensed appraisers. Consumer-facing free versions exist and are useful, but they are limited.

The Datacomp NADA consumer lookup provides a base value for a fee. It does not include the regional adjustments in the full guide.

Some lenders will run a NADA report on a specific home as part of a loan pre-qualification. That report can be requested by the seller with the buyer's cooperation.

For sellers who need a defensible number for a specific home — a divorce, an estate settlement, a probate — a paid appraisal from a licensed manufactured home appraiser is the highest-confidence path. It typically costs $250 to $500 and takes seven to fourteen days.

For sellers listing on the private-party market, the NADA-plus-comps method is usually enough.

What PERCH does with valuation

PERCH is the marketplace for modular, manufactured, container, tiny, and small-format homes. Sellers who list on PERCH get valuation guidance from the two-source method built into the listing intake — a NADA-referenced base value plus a comps overlay from recent sales in the same category — plus escrow settlement through licensed escrow settlement in all fifty states.

Listing is free right now.

When you are ready — we will feature your home to pre-qualified buyers, handle every inquiry, and settle through licensed escrow. List your home →

Or get the Seller's Field Guide — free PDF, twenty pages, everything you need to price and list. Send me the guide →

Sources

• J.D. Power NADA Manufactured Housing Appraisal Guide
• U.S. Department of Housing and Urban Development, Manufactured Housing Programs
• Datacomp NADA consumer lookup platform
• MHVillage market listings — comps and asking-price data
• Manufactured Housing Institute — market and shipment data

Related on PERCH

• Sell a Manufactured Home Without Losing 20–40% to a Cash Buyer
• Bill of Sale for a Manufactured Home
• The Field Guide (PDF, free)