BPC Insights

Renovating Mixed-Use Buildings in Houston: What Investors Should Plan For

Published · BPC Development LLC

Mixed-use buildings, with shops or restaurants on the ground floor and apartments or offices above, show up across the Houston area, from older two-story buildings in established neighborhoods to newer projects near major corridors. For investors, they can offer a blend of commercial and residential income from one property. They also bring more complicated renovation planning, because each use has its own code requirements and the uses must be separated and protected from each other.

This guide walks investors through what to look for and plan before renovating a mixed-use building. It is general information, not legal, tax or financial advice. Talk with your attorney, lender and design team about your specific property.

Due diligence before you buy

Mixed-use buildings often have a long history of changes. Before buying, review:

The Harris Central Appraisal District has property records, and the City of Houston's 311 service can help with questions about permits and city records. Our guide to buying a property with unpermitted work explains what to look for when past work was done without permits.

Separations between uses

When different occupancies share a building, the code usually requires fire-rated separations between them, such as rated floors, walls and doors. Restaurants below apartments are a common concern because of grease, smoke and odors. The International Building Code sets mixed-occupancy rules, and the City of Houston adopts and amends it. A renovation that changes uses or adds residential units can trigger upgrades to these separations.

Fire protection and life safety

Review:

The Houston Fire Marshal's Office reviews fire protection plans in the city. Our guide to commercial fire sprinkler retrofit planning covers sprinkler work in existing buildings.

Sound, odor and vibration

Residents above restaurants, bars or gyms may hear and smell their downstairs neighbors. Plan:

Our guides to fitness center buildouts and restaurant buildouts explain how those tenants affect neighbors.

Utilities and metering

Older mixed-use buildings may have shared utility services, which makes billing tenants difficult. A renovation is a chance to:

Coordinate with CenterPoint Energy through its business services. Billing residential tenants for utilities can be regulated, so talk with your attorney before changing how residents are charged.

Accessibility

Ground-floor commercial spaces are public accommodations and need accessible entrances, routes and restrooms under the 2010 ADA Standards. Residential portions may be subject to federal fair housing design rules, as HUD explains on its fair housing page. Talk with your attorney about which requirements apply.

Historic and floodplain issues

Many mixed-use buildings in older Houston neighborhoods are historic or sit in historic districts. Our guide to renovating historic properties covers design review and incentives. If the building sits in a mapped floodplain, major renovations can trigger floodplain compliance; see our guide to renovating in a Houston floodplain.

Parking

Adding residential units or changing commercial uses can change parking requirements. The City of Houston's off-street parking rules set requirements by use.

Upper-floor conversions

Some investors convert upper-floor offices into apartments or the reverse. That is a change of occupancy that triggers code review for exits, separations, light and ventilation. Our guide to office-to-residential conversions explains the main issues.

Phasing around existing tenants

Renovating an occupied mixed-use building means protecting tenants on every floor. Plan:

Have your attorney review leases before starting work that affects tenants.

Building the business plan

The renovation plan and the investment plan should be built together. Commercial and residential spaces lease differently, carry different vacancy risks and attract different tenants. A ground-floor restaurant may need a large buildout contribution and a long lease, while upper-floor apartments may turn over more often but need less work per space. Before committing to a scope, think through:

Our guides to turnkey vs allowance tenant improvements and value-add multifamily explain how owners usually think about commercial and residential improvements.

Working with one contractor or several

Some owners hire separate contractors for commercial buildouts and apartment renovations. Others use one general contractor for the whole building. A single contractor can make coordination of shared systems, such as fire alarms, utilities and roofs, simpler, while separate contractors may bring specialized experience for restaurants or residential units. Either way, one person on the owner's side should track schedules, permits and tenant communication across all of the work.

Questions to ask before renovating

Common mistakes to avoid

Quick checklist

Planning a mixed-use building renovation in Houston? BPC Development LLC provides free on-site estimates in Houston, TX. Call (281) 301-4737.

Call (281) 301-4737Get a free estimate