Condo, townhouse, or single-family — what's the real cost difference?

Same price tag, very different ownership cost.

A first-time buyer comparing a $425,000 condo against a $425,000 townhouse against a $425,000 single-family home is comparing three structurally different cost commitments. The mortgage payment is identical. Almost nothing else is.

Run through the structural differences:

• HOA fees: the condo carries $300–$700/month covering the building, the townhouse carries $150–$300/month covering landscaping and limited common areas, the single-family typically carries $0 (or $50–$200 in newer planned communities).
• Insurance: the condo needs an HO-6 policy (interior-only, ~$500–$900/year) because the HOA's master policy covers the structure. The townhouse and single-family carry HO-3 policies covering the structure (~$1,200–$2,500/year, varying by location and structure).
• Maintenance reserve: condos run at ~0.3–0.5% of value annually because the HOA covers exterior; townhouses at ~0.6–0.9% because owners share walls but own the structure; single-family at ~1.0–1.3% because owners cover everything from roof to yard.
• Utilities: condos run lowest (shared walls, sometimes master-metered services), townhouses moderate, single-family highest (full envelope, larger footprint).

The condo's monthly HOA fee is the most visible difference, but it's not the largest one. Add maintenance reserve, insurance, and utility differences, and the total varies by $300–$600/month between property types at the same price point. Over a 7-year hold, that's $25,000–$50,000.

Why the condo's HOA fee can still be the cheaper option

Looking at HOA in isolation, condos appear most expensive. Looking at total monthly cost — including maintenance reserve and utilities — condos often come out cheapest in absolute terms. The HOA fee is paying for things you'd otherwise pay separately: roof reserves, exterior insurance, landscaping, building maintenance. The question isn't "is the HOA expensive?" — it's "is the bundled HOA cheaper than DIY-ing the same services on a single-family home?" Sometimes it is, sometimes it isn't.

The special-assessment asterisk

The largest cost category this calculator can't easily model is the special assessment — the one-time bill condo (and some townhouse) HOAs send when major repairs exceed reserves. New roof, new elevator, foundation issue, exterior repaint, deferred maintenance after a leadership change. Typical special assessments run $5,000–$25,000; large ones run $50,000+ (Florida condo law changes after the Surfside collapse have driven assessments north of $100,000 in some buildings). When evaluating a specific condo, the right diligence is reading the most recent reserve study and HOA financials. Healthy reserves predict low future assessments. Underfunded reserves predict the opposite.

The single-family hidden cost

Single-family ownership has its own under-counted line: your time. The maintenance reserve assumes you fund the work. The actual labor — mowing, gutters, snow, exterior repairs, landscaping — is either your weekends or a recurring landscaper bill. A typical landscaping contract runs $80–$200/month seasonally; budgeting that adds $1,000–$2,400/year that the calculator's defaults don't capture unless you raise the maintenance reserve to compensate.

How to use this honestly

Run the defaults to see the structural shape, then replace each per-type number with values from specific listings you're actually considering. The HOA disclosure documents for any condo or townhouse should show the current fee, recent fee history, reserve study results, and any pending assessments. Insurance can be quoted in 5 minutes. Utility ranges are in past statements (ask the seller). The honest version of this comparison is between three real properties, not three averages.