Short answer
Whole-house renovations in Greater Houston typically run $150 to $190 per square foot at a simple finish level, and $290 to $370 at a luxury one. Most take 2 to 5 months from first meeting to construction start, since there is no new footprint to permit. The variable that decides the budget is not finish level — it is what is found behind the walls, which is why renovations carry the largest contingency of any project type.
Renovation is the only project type where the budget is set largely by things nobody can see when the budget is written. A new house on an empty lot is a known quantity. A 1962 ranch in Meyerland is a set of reasonable assumptions that stay reasonable right up until the drywall comes off.
That is not an argument against renovating. Greater Houston's older housing stock sits on lots and in neighbourhoods that would be unaffordable to buy into new, and the bones are frequently better than what gets built at the same price today. It is an argument for finding out what you have before you commit to what you want.
What a renovation actually involves
The order matters more here than on any other project type.
Measure and document
The house as it stands, not as originally drawn. Renovations start from an accurate base or they start wrong.
Investigate
Selective opening-up where it matters — structure, drain lines, panel capacity, evidence of past water. Cheap to look now, expensive to discover later.
Decide the scope
Which walls move, which systems get replaced, and which parts of the house are deliberately left alone. Scope discipline is what keeps a renovation finite.
Design
Plans, structure and systems resolved together. Moving a wall in an existing house is a structural question before it is a design one.
Construction documents and permit
A drawing set the contractor can price accurately and the reviewer can approve.
Bid and select
Renovation bids vary more than new-build bids. Comparable drawings are the only way to compare them fairly.
Construction
Site visits, and decisions made when what is uncovered differs from what was assumed.
The step people skip is the second one. Selective opening-up before design — pulling a section of ceiling, scoping a drain line, opening a wall at a suspected bearing point — costs a few hundred dollars and routinely changes the entire scope. Skipping it means designing against assumptions, then redesigning when the assumptions turn out to be wrong, usually after the contract is signed.
What can't be known until construction starts?
Even with investigation, some things stay hidden until the house is open. The recurring ones in this market:
- Water history. Slow leaks at windows, roof junctions and shower pans that have been quietly rotting framing for years. Houston's humidity is unforgiving about this.
- Original drain lines. Cast iron in houses from the 1960s and earlier is often at or past the end of its life. Once the slab is open for one reason, replacing it is sensible and unbudgeted.
- Structure that is not where it should be. Load paths in older houses were sometimes improvised, and previous remodels removed things that were doing work.
- Electrical. Panels too small for modern load, aluminium branch wiring in some 1965–1973 houses, circuits that were extended without permits.
- Foundation movement. Gumbo clay moves seasonally. A house that has settled unevenly may need levelling before finishes go in, or the new work cracks.
None of these are exotic. All of them are reasons the contingency on a renovation should be larger than on a new build.
What it costs
Build cost by finish level — 2,200 sq ft
Those are construction ranges at the size shown. Where a renovation lands inside them is decided less by finish level than by scope of disruption.
A renovation that keeps the plan, replaces finishes and updates systems sits near the bottom. A renovation that moves walls, relocates the kitchen, opens a ceiling, replaces the roof and rewires throughout is closer to new-build cost per square foot, because most of a new build's work is being done — just in a harder sequence and inside an existing shell.
Contingency of 10 to 20 percent, and take the upper end seriously. On a renovation this is not padding. It is the line item that lets you replace the drain line when the slab is already open rather than living with it for another decade.
Is it worth renovating or should I tear down and rebuild?
The honest answer depends on three things, and price per square foot is not the first of them.
What the existing structure gives you. Older Houston houses frequently sit closer to the street or the side lines than current setbacks would allow. That non-conforming position is usually protected as long as the house stands — demolish it and the new house has to comply, which can mean a smaller or differently shaped building. Sometimes the most valuable thing about an old house is where it is standing.
How much of it you are keeping. If the plan is gutting to studs, replacing the roof, rewiring, replumbing and moving most walls, the case for keeping the shell gets thin. You are paying renovation premiums for a building you have effectively replaced.
Deed restrictions and neighbourhood context. Some restrictions treat substantial reconstruction as new construction, triggering requirements the existing house is exempt from.
How long it takes
Renovations — first meeting to construction start
Renovations reach construction faster than new builds — there is no new footprint to review, and interior remodels in most jurisdictions get a lighter review than a new house. What renovations do not do is finish faster. Construction on a whole-house renovation frequently runs longer than construction on an equivalent new build, because work happens in sequence in confined spaces rather than in parallel across an open site.
Do I need a permit to renovate in Houston?
For anything structural, electrical, mechanical or plumbing — yes. Moving or removing a wall, changing window openings, adding circuits, relocating plumbing, replacing HVAC all require a permit in the City of Houston and in the surrounding jurisdictions.
Cosmetic work — paint, flooring, cabinetry replaced in the same location, fixtures swapped like-for-like — generally does not.
The grey area is where most trouble starts. A kitchen "refresh" that relocates the sink is a plumbing permit. Opening up a wall between kitchen and living room is structural. Contractors sometimes offer to work without pulling permits, on the argument that it is faster. It is faster right up until it surfaces during a sale, when unpermitted structural work becomes the buyer's negotiating lever or the lender's objection.
The structural question
In an existing house, almost every interesting design move is a structural one.
The wall between the kitchen and the living room is the wall everyone wants gone, and it is frequently carrying the roof. Removing it means a beam, and the beam means a load path — posts down to something that can take the load, and a foundation under that. In a slab-on-grade house that can mean cutting the slab for new footings. In a pier-and-beam house it means work underneath.
This is worth understanding early because it changes the economics of a plan. Two schemes that look equally good on paper can differ by tens of thousands of dollars depending on which walls they ask to disappear. Knowing which ones are bearing before the plan is chosen means choosing with the price attached.
What about historic districts?
Houston has protected historic districts, concentrated in the Heights, Old Sixth Ward, Freedland, Westmoreland, Avondale and others. Inside them, exterior alterations visible from the street require a Certificate of Appropriateness from the Houston Archaeological and Historical Commission, in addition to the ordinary building permit.
That process reviews what the change looks like, not just whether it is sound — window replacement, siding, porch alterations, additions visible from the front. It adds time, and it constrains options in ways worth knowing before falling in love with a scheme. Interior work is generally unaffected.
Keeping a renovation from stalling
Renovations stall for three recurring reasons, all of them preventable on paper.
Scope that grows without being re-decided. Every open wall suggests one more improvement. Each is individually reasonable; together they are a second project running inside the first, with no budget or schedule attached. Decide the scope, then treat additions to it as explicit decisions with a price, not as drift.
Drawings too thin to bid accurately. Renovation bids vary far more than new-build bids because contractors are pricing risk as much as work. Given vague drawings, a careful builder prices the risk and looks expensive; an incautious one prices the optimistic case and wins the job, then finds the difference in change orders. Comparable drawings are the only way to compare bids fairly.
No decision-maker on site. Renovations generate questions daily, and each unanswered one stops a trade. The single largest schedule saving on a renovation is someone empowered to answer within hours who understands why the detail was drawn that way.
Ready to find out what you actually have?
The useful conversation about a renovation starts with the house, not the wish list. What is bearing, what is failing, what is protected, and what your restrictions allow.
Tell us the address, roughly what you are hoping to change and what you want to spend. You will get an honest read on whether the scope and the budget belong together — and if they do not, which one is easier to move.