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Standards explainer · May 27, 2026 · ~8 min read

NRSS Level I, II, and III: which reserve study does your HOA actually need?

Every reserve study quote you receive will be tagged as Level I, II, or III. The right one depends on what your association already has on file, how long it's been since the last site visit, and what your state requires. Here's a plain-English decision guide for 2026.

The three levels in one sentence each

All three are defined by the National Reserve Study Standards (NRSS), maintained by the Community Associations Institute (CAI) and adopted into law or industry practice across most US jurisdictions. The standard exists so that two analysts looking at the same community would produce comparable studies — and so boards can compare apples to apples when shopping quotes.

Level I — Full Reserve Study (with site visit)

The starting point for every association's long-term capital plan. A Level I study includes:

Cost range: $2,500 to $7,500 for most communities. High-rise condos and very large or complex properties can run $10,000 to $20,000+.

When to do one:

Level II — Update with site visit

The study type most established associations will use on a recurring basis once a baseline Level I is on file. A Level II includes:

Cost range: $1,800 to $5,000 — typically 60-70% of a Level I for the same community.

When to do one:

Level III — Update without site visit (desktop)

The lightest-weight option. A Level III is a pure financial refresh — no inspector visits the site. The analyst takes the prior Level I or Level II component list as a starting point and updates:

Cost range: $600 to $1,500 for most communities. Some firms include a Level III update in the price of the prior Level I as a multi-year package.

When to do one:

Critical limit: a Level III cannot be the first study an association has on file. The desktop refresh assumes a prior site-visit study provides the component inventory and condition data. New associations always start with a Level I.

The 5-year cycle most associations use

A common pattern looks like this:

Year Study type Typical cost Why this level
1 Level I (full study, site visit) $3,500 Fresh baseline
2 Level III (desktop) $800 Annual refresh, no major changes
3 Level III (desktop) $800 Annual refresh
4 Level II (update + site visit) $2,200 Verify Level I assumptions still hold
5 Level III (desktop) $800 Annual refresh

5-year total: $8,100. Compare to a Level I every year (5 × $3,500 = $17,500) — the stepped approach saves roughly half. More on reserve study cost ranges.

State law overrides

Several states impose specific minimum levels regardless of what NRSS allows:

California (Davis-Stirling, Civil Code §§ 5550, 5570)

Every California HOA must conduct a "visual inspection of the accessible areas of the major components" at least every three years. This is functionally a Level I or Level II study — pure desktop Level III updates are not sufficient as the triennial study. Annual budget disclosures (the Reserve Funding Disclosure Summary under §5570) can be supported by a Level III in years where no full study is due.

Florida (SIRS, F.S. § 718.112(2)(g))

For residential condominiums and cooperatives of three or more habitable stories, the SIRS requirement is a separate workflow that runs alongside NRSS levels. A SIRS must be performed by a licensed engineer or architect, must cover eight specific structural components, and must be updated at least every ten years. SIRS reserves cannot be waived by unit-owner vote and must be tracked separately. Full SIRS guide here.

Other regulated states

Nevada, Hawaii, Massachusetts, Colorado, Oregon, Washington, Virginia, Illinois, Connecticut, Delaware, Utah, Minnesota, and Maryland each have their own reserve-study formatting requirements that overlay on top of the NRSS levels. The functional pattern is similar — a periodic full study (Level I or II) plus interim updates — but the deliverable format differs by state.

Decision tree: which level fits your situation

The simple question tree:

  1. Do you have a reserve study on file from the last five years?
    • No → Level I.
    • Yes → go to question 2.
  2. Has anything significant changed since the last study? (Major replacements completed early, new amenities added, building additions, condition issues flagged in the last study that need re-inspection)
    • Yes → Level II.
    • No → go to question 3.
  3. Does state law require a site visit this year? (California's triennial cycle, etc.)
    • Yes → Level II.
    • No → Level III.
  4. (Florida only) Is the building three or more habitable stories?
    • Yes → SIRS is also required, in addition to whatever NRSS level you land on above.
    • No → Standard NRSS path only.

How software changes the cost equation

The financial modeling that historically required a credentialed analyst working in Excel — the 30-year projection, the funding plan optimization, the percent-funded calculation, the multi-scenario comparison — is now better-handled by purpose-built software. What software cannot do is the on-site visual inspection. So:

For an association on a 5-year cycle, the dollars saved show up in the four Level III years where software replaces ~$3,000-$4,000 of analyst time per cycle.

Three levels, one engine.

Apex Reserve Studio's projection engine produces NRSS-compliant Level I, II, and III deliverables. Set the study level on Property Info, run the projection, generate the PDF — the engine math is byte-identical across levels because it's the same model with different input refresh cadences.

Frequently asked questions

What is the difference between Level I, II, and III reserve studies?

Level I is a full study with on-site visual inspection — most comprehensive, used at the start of a reserve plan. Level II is an update with site visit — shorter inspection that verifies Level I assumptions. Level III is a desktop update — re-runs the financial model without a site visit. Defined by the NRSS, maintained by CAI.

Which level of reserve study does my HOA need?

A new association starts with Level I. Established associations alternate Level II updates (every 2-3 years) and Level III desktop updates (in maintenance years). State law may prescribe — California requires a full study at least every three years. Florida SIRS for buildings 3+ habitable stories is its own category.

How often should you update a reserve study?

Most state laws require a full study (Level I or II) every three to five years. California mandates every three years under Civil Code §5550. The funding plan should be reviewed annually and updated via Level III in interim years.

What's the typical cost difference between Level I, II, and III?

Level I is $2,500-$7,500 for most HOAs. Level II is 60-70% of a Level I ($1,800-$5,000). Level III is dramatically cheaper at $600-$1,500 because there's no inspection labor. A 5-year cycle with one Level I, one Level II, and three Level IIIs saves roughly half compared to doing a full study every year.

Can I do a Level III update if I never had a Level I?

No. Level III assumes a prior Level I or II provides the component inventory and condition data the desktop refresh updates. Without a site-visit study on file, there's no baseline to refresh. New associations always start with Level I.

Does software change the level math?

Software handles the financial side of all three levels — projection math, funding plan optimization, percent-funded calculation. It cannot perform site visits, so Level I and Level II still need a human inspector. But it dramatically reduces Level III cost: a full desktop refresh runs in software in hours instead of paying a consultant to re-key the prior study.