The Builder Walkthrough: What Houston Investors Should Check Before Buying
Listing photos and a seller's description rarely tell an investor what a renovation will really involve. A walkthrough with a builder before you commit can turn a vague plan into a clearer scope, flag the items that change the deal and show you where the unknowns are. It doesn't replace a professional inspection, a survey or legal review, but it gives you a builder's view of the work ahead.
This checklist explains how to get the most out of a builder walkthrough on a Houston property, from what to bring to the questions worth asking before you leave.
This page is general information, not legal, inspection or investment advice. Bring in a professional inspector, an engineer and your attorney where their judgment is needed.
Before the walkthrough
A little preparation makes the visit far more useful:
- Share the plan: Tell the builder whether you intend to rent, resell, add units or change the layout. The scope depends on the plan.
- Gather documents: Seller's disclosure, prior inspection reports, survey, permit history and any repair invoices.
- Check public records: Look up the property on the Harris County Appraisal District site for basic details, and check permit history with the Houston Permitting Center.
- Check flood information: Review the Harris County Flood Control District mapping tools and ask the seller about past flooding.
- Arrange access: Make sure the attic, crawlspace, electrical panel, water heater and any outbuildings can be opened.
Outside the house
Start outside, where many of the big problems show first:
- Foundation: Cracks in brick, gaps at windows and doors, sloped porches and slab edges. Houston's clay soil moves with wet and dry seasons. Our guide to signs of foundation problems in a Houston home explains what to look for.
- Drainage: Which way does water flow? Look for low spots, standing water, missing gutters and soil sloping toward the house.
- Roof: Missing shingles, sagging ridges, patched areas, rusted flashing. Our guide to signs your roof needs replacement can help.
- Siding and trim: Rot near the ground, around windows and at roof edges.
- Driveway and walks: Cracks, heaving and trip hazards.
- Trees: Large trees close to the foundation or overhanging the roof.
- Fences and outbuildings: Condition and whether they were permitted.
Inside the house
Walk every room and look for patterns:
- Floors: Slopes, soft spots and cracked tile.
- Walls and ceilings: Cracks, water stains and fresh paint in odd places.
- Doors and windows: Sticking doors and windows can signal movement.
- Kitchen and baths: Condition of cabinets, counters, tile and fixtures.
- Odors: Musty smells can point to moisture or mold.
Systems
The systems often decide whether a renovation is light or heavy:
- Electrical: Panel age and brand, signs of overheating, outdated wiring, missing grounds.
- Plumbing: Pipe materials, water pressure, slow drains, signs of past leaks. Older homes may have aging cast iron or galvanized lines. Our guide to plumbing issues common in older Houston rentals explains common problems.
- HVAC: Age, condition of ductwork and how well it cools.
- Water heater: Age, venting and pan.
- Sewer line: For older homes, ask whether a camera inspection makes sense.
Older-home materials
Homes built before 1978 may contain lead paint. Work that disturbs it falls under the EPA Renovation, Repair and Painting rule. Older homes may also have materials that contain asbestos, such as some flooring, ceiling texture and pipe insulation. Testing before demolition protects workers and residents. See the EPA asbestos page for background.
Layout and scope ideas
If you plan to change the layout, add a bathroom or create another unit, raise it on site:
- Which walls are load-bearing?
- Where can new plumbing tie in?
- Is the electrical service large enough?
- Do deed restrictions limit additions or extra units?
The City of Houston Legal Department's deed restriction resources are a starting point, and your attorney should review recorded restrictions. Our guide to garage apartment and ADU planning for investors covers adding a unit.
Permits and past work
Look for signs of unpermitted work: odd additions, enclosed garages, DIY wiring and newer work that doesn't match the rest of the house. Unpermitted work can create problems with buyers, lenders and insurers. Our guide to buying a property with unpermitted work explains the risks.
Floodplain questions
If the property is in a mapped floodplain, a large renovation may trigger extra requirements. Our guide to floodplain renovation rules for investors explains why this matters before you set a scope.
Questions to ask the builder on site
- What are the biggest unknowns in this house?
- Which items would you want to open up or test before committing?
- What would a light, medium and heavy scope look like?
- Which repairs come first for safety and weather protection?
- What permits would this scope likely need?
- What might cause schedule delays?
- What would you want to see from a specialist, such as an engineer or sewer camera?
After the walkthrough
Ask the builder for a written outline of the scope options and the items that need more investigation. Compare it with the inspection report. Our investor's deal review checklist and our guide to investor renovation scope and bidding explain the next steps. If the walkthrough shows the house may be a candidate for demolition instead, our guide to tear down vs renovate can help.
Walkthrough checklist
- Share your plan for the property
- Gather disclosures, reports and permit history
- Check flood maps and appraisal records
- Walk the exterior: foundation, drainage, roof, siding, trees
- Walk the interior: floors, walls, doors, kitchens, baths
- Review electrical, plumbing, HVAC and sewer
- Ask about lead paint and asbestos in older homes
- Discuss layout changes and deed restrictions
- Look for unpermitted work
- Get a written scope outline and list of unknowns
Walking a Houston property before you buy? BPC Development LLC provides free on-site estimates in Houston, TX. Call (281) 301-4737.