Falling in love with a house is easy. Knowing what you’re actually buying is harder. Most buyers spend more time researching a new phone than evaluating the biggest purchase of their lives.
Here’s what to actually look for – before you make an offer.
Start Outside Before You Go In
The exterior tells you more than most buyers realize. Walk around the entire property before stepping inside.
Roof condition – look for missing or curling shingles, sagging areas, moss or algae growth, and deteriorating flashing around chimneys and vents. A full roof replacement costs $10,000-20,000+. Ask the seller when it was last replaced and get the answer in writing.
Foundation – look for cracks in the foundation walls, uneven ground around the perimeter, or gaps between the foundation and the structure above. Horizontal cracks are more serious than vertical ones. Foundation repairs are among the most expensive fixes a homeowner faces.
Grading and drainage – does the land slope toward or away from the house? Water should drain away from the foundation. Improper grading leads to water intrusion in basements and crawl spaces – a persistent problem that’s expensive to fix.
Gutters and downspouts – are they intact, properly attached, and directing water away from the foundation? Clogged or missing gutters are a leading cause of foundation and basement water problems.
Driveway and walkways – significant cracking or heaving indicates drainage issues or settling. Not catastrophic, but expensive to repair.
Inside – What to Check Room by Room
Basement and crawl space Water issues aren’t just cosmetic – they lead to mold, structural damage, and unhealthy living conditions. Look for water stains on walls or floors, efflorescence (white mineral deposits on concrete), musty smell, visible mold, and sump pump presence. A damp basement with recurring water intrusion is one of the most common and costly surprises for first-time buyers.
Attic The attic tells stories about the house. Look for roof decking with no staining from leaks, proper structural framing with no damage or sagging, adequate ventilation, sufficient insulation, and no evidence of pests or water intrusion. Proper attic ventilation prevents ice dams, reduces cooling costs, and extends roof life.
Walls, ceilings, and floors Look for cracks (especially diagonal cracks at corners of doors and windows – these can indicate settling), water stains on ceilings, soft or springy spots in floors, and doors that stick or don’t close properly. These can all be signs of structural movement or moisture problems.
Windows and doors Open and close every window and door. They should operate smoothly, seal completely, and show no signs of rot around the frames. Single-pane windows are an efficiency and comfort issue – replacement is expensive but manageable. Rotting frames around windows are more serious.
Electrical system Look for the panel location and note whether it’s a modern circuit breaker or an older fuse box. Older panels – particularly Federal Pacific and Zinsco brands – have known safety issues. Look for visible outlets in every room, GFCI outlets near water sources (kitchen, bathrooms), and no evidence of DIY wiring.
Plumbing Plumbing problems can be expensive. Check visible supply lines for leaks, corrosion, or outdated materials like galvanized steel. Run water in every sink and shower, flush every toilet, and look under sink cabinets for signs of past leaks. Ask about the age and type of pipes throughout the house.
HVAC system Ask about the age of the furnace, air conditioner, and water heater. A furnace over 15-20 years old or an AC unit over 10-15 years is approaching end of life. Budget $3,000-8,000 for HVAC replacement if the systems are older. Turn on the heat and AC during your visit to confirm they function.
Layout and Livability – The Practical Test
Walk through the house multiple times imagining daily activities. Where do groceries go when you bring them in? Is there space for shoes and coats? Can you watch kids in the backyard while cooking dinner? Does the primary bedroom share a wall with the living room?
Open floor plans photograph well and feel spacious at first visit – but some people find them loud, difficult to keep tidy, and offering less privacy than defined rooms. Make sure the layout matches how you actually live, not how the listing looks.
Storage space impacts livability significantly. Where do holiday decorations go? Tools, sports equipment, seasonal clothing? Basements and attics should be dry, accessible, and properly ventilated – a damp basement with limited clearance doesn’t count as useful storage.
Cell service and internet availability matter more than most buyers remember to check. Walk to the far corners of the house and check your signal. Ask the seller which internet providers service the address.
Location – The One Thing You Can’t Change
Everything inside a house can be renovated. The location is permanent.
Neighborhood trajectory – is the area improving or declining? Look at recent sale prices on Zillow, Redfin, or Trulia. New construction, business investment, and improving school ratings are positive signals. Vacant properties, declining sale prices, and closing businesses are warning signs.
Noise and traffic – visit at different times of day. A quiet street at 10am on a Tuesday can look very different at 5pm on a Friday. Schools, churches, bars, and main roads all have peak noise periods you won’t experience during a standard showing.
Flood zone status – check whether the property is in a FEMA flood zone at msc.fema.gov. Properties in high-risk zones require flood insurance which can add $1,000-3,000+/year to your carrying costs. This is non-negotiable to check before making an offer.
HOA – if the property is in a homeowners association, request the CC&Rs, bylaws, meeting minutes, and current financials. HOA fees vary from $50-1,000+/month. Poorly managed HOAs with underfunded reserves can lead to special assessments – unexpected bills for major repairs – that fall on all owners.
Never Skip the Home Inspection
Everything above is what you can assess yourself. A professional home inspection goes deeper.
A home inspection can feel like one more expense when you’re already stretching your budget – average cost sits around $343. Some buyers skip it to save money or speed up closing. This is usually a mistake. You’re about to make the largest financial investment of your life. An inspection isn’t an expense – it’s insurance against surprise costs that could total tens of thousands of dollars.
Hire your own inspector – not one recommended by your agent or the seller. Attend the inspection in person and ask questions throughout. A good inspector will walk you through every finding and help you prioritize what’s serious versus what’s normal wear.
Use the inspection report to negotiate repairs, a price reduction, or a credit at closing. A property that looks perfect to an untrained eye can have $20,000-50,000 in deferred maintenance waiting just below the surface.
Related: How to Buy Your First House – A Step-by-Step Guide for 2026