You can judge most of a house’s EV readiness during viewings, with three checks: where the car will park, what the main breaker says about the service, and how far the panel sits from the parking spot. You need no tools and you should not open anything: you are reading labels and judging distances. A licensed electrician confirms the real capacity with a load calculation once the house is yours.
Key Takeaways
- Check three things at a viewing: the parking, the main-breaker number, and the panel-to-parking distance.
- Read the panel label from the door; never open the panel — the load calculation belongs to an electrician.
- A 100 A service is a planning question, not a deal-breaker; street-only parking is the real obstacle.
- Put any existing charger, and condo or HOA rules, in writing before you offer.
Start Where the Car Will Sleep
Charging follows the parking. A garage or a driveway next to the house is the easy case: the charger mounts on a wall and the cable run is short. A spot far from the house — across a garden, or in a detached building — still works but adds cable run and labour. Street-only parking is the hardest case: the cable would cross land you do not control; whether you can have a charger at home depends on which situation you are buying into.
Read the Panel From the Door — Do Not Open It
Find the breaker panel (garage, basement or utility room) and read the main breaker’s number without removing any cover: that is the service size, and it frames everything else. A later load calculation by an electrician decides how much is truly spare — under the National Electrical Code a charger is a continuous load, so its breaker is sized at 125% of its current (32 A of charging needs a 40 A breaker, 40 A needs 50 A, 48 A needs 60 A), as breaker sizing explains.
| What you can see at a viewing | What it hints | What it means for charging |
|---|---|---|
| 200 A on the main breaker | A modern, larger service | A 40–60 A charger circuit usually fits, subject to the load calculation |
| 100 A on the main breaker | An older or smaller service | Often still workable — at a lower charger current, or with load management |
| A 240 V outlet already in the garage | A heavy-duty circuit exists | A plug-in portable charger can work from moving day |
| Panel at the opposite end of the house from the parking | A long cable run | Higher installation labour — the main cost to budget for |
Panel capacity explained walks through what those service sizes mean in practice.
Questions for the Seller and the Inspector
- Has the panel ever been replaced or upgraded? A newer panel is a good sign; the inspector can note its age and condition.
- If a charger is already fitted, does it stay? Agree it in writing, and ask for its manual and paperwork; check its condition after you move in.
- Is there any unpermitted electrical work? Your inspector and the permit record matter more than the seller’s memory.
- For a condo or townhouse, what do the association rules say? Get them in writing before you offer — approval, metering and who pays are association questions, not electrician questions.
- If the seller drives an EV, where do they charge now? Their workaround tells you where the friction is.
Charging From Day One, Then the Permanent Setup
If the house has a suitable existing 240 V outlet, a portable charger covers you from the first night: the EVDANCE EV-AC04001U 40A J1772 portable charger delivers 9.6 kW from a NEMA 14-50 outlet with a 25 ft cable. For the permanent installation, the EV-ACT5006T 48A Level 2 wall charger mounts hard-wired or on a NEMA 14-50P plug, with ETL, FCC and CE listings. Both sit in our residential EV charging range — the portable buys you time to plan the fixed install properly.
Frequently Asked Questions
Can I work out the charging capacity myself at a viewing?
Only the starting point: the label gives the service size. Spare capacity depends on the home’s total load — which is why the load calculation is an electrician’s job, not a viewing task.
Is a 100 A panel a reason not to buy the house?
Usually not. Many 100 A homes charge at a lower current or with load management, and a service upgrade is a known, plannable job — a budget line to check, not a veto.
What if the house has no driveway or garage?
That is the hardest case. Some owners rely on workplace or public charging; some areas allow solutions that carry a cable across the pavement. Ask locally before assuming home charging is possible.
Related Reading
- Can I Have an Electric Car Charger at Home? Houses, Rentals and Condos
- What Size EV Charger Can I Have at Home? Panel Capacity Explained
- What Size Breaker Do I Need for an EV Charger?
- How Much Does a Home EV Charger Cost?
