Buying a Heights Bungalow to Live In: What a Full Renovation Involves

What governs a Heights renovation when the city has no zoning?

The City of Houston's official zoning letter, dated January 6, 2026, states that the City of Houston does not have a city-wide comprehensive zoning ordinance. It names the land use exceptions, which cover land around the city's airports, subject to land use and height and hazard area regulations, and one reinvestment zone where zoning regulations control the use of land. The letter then adds a line that matters more than the rest for a Heights lot: it does not address any separately filed restrictions that may be applicable to a property.

Three instruments do the work zoning does elsewhere, and they answer to three different bodies. The first is the City's historic preservation ordinance, interpreted and administered by the Houston Archaeological and Historical Commission and, on the administrative path, by the Planning Director. The second is the recorded deed restrictions on the lot, private instruments filed in the county records. The third is the chapter 42 lot rules, including a special minimum lot size designation where city council has made one for a block or an area.

City council may designate a special minimum lot size block or area to preserve the lot size character of a single-family residential neighborhood that has no minimum lot size established by deed restrictions, and such a requirement prevails over any lesser minimum lot size in the article. A block is eligible where it contains not less than one blockface and no more than two opposing blockfaces, holds all lots on each blockface, forms a contiguous area with no out tracts, has at least 60 percent of its lots developed for or restricted to single-family use, and includes at least one lot with no minimum lot size in its deed restrictions. An applicant meets with the director before filing. A requirement established on an application the director determines to be complete after May 24, 2013 runs for 40 years after the effective date of the ordinance establishing it, and one on an application determined complete before that date runs for 20 years after that same effective date, in each case unless city council adopts an ordinance terminating it earlier. An application to rescind is accepted no earlier than five years after that effective date.

Deed restrictions carry weight in Houston because state law puts the City behind them. Under chapter 212, subchapter F of the Local Government Code, a municipality that does not have zoning ordinances, and that passes an ordinance requiring uniform application and enforcement, may sue in any court of competent jurisdiction to enjoin or abate a violation of a restriction contained or incorporated by reference in a properly recorded plan, plat or other instrument affecting a subdivision inside its boundaries. The statutory definition of a restriction reaches the distance a structure must be set back from property lines, the size of a lot and the size, type and number of structures on it, architectural features, construction of fences, landscaping, and the type of maintenance that must be performed. The City may not initiate or maintain such a suit where a property owners' association with the authority to enforce the restriction files suit to enforce it. A restriction properly recorded before August 30, 1965 may be enforced the same way, but a violation that occurred before that date may not be enjoined or abated by the municipality as long as the nature of the violation remains unchanged.

So the first question on a Heights renovation is which of those three applies to this address, ahead of what you want to build. All three are answered lot by lot rather than by the neighborhood's name.

Does the house contribute to its district, and can you trust the answer?

Each district has an inventory created at designation. It lists each historic resource, whether a building, structure, object or site, with its address, legal description, construction date, and whether the resource is contributing or noncontributing to the district.

The City prints its own caution alongside that record: "Each inventory is established at the time of the district's designation and does not reflect changes that have occurred on a property since then."

The Heights districts are the case in point. West and East were designated two or more years before the historic preservation ordinance was changed to add protections for historic resources, and from 2007 to 2010 an owner whose application was denied only had to wait 90 days before doing whatever they wanted. Many buildings were demolished and new buildings constructed during those years. South followed in June 2011, after the change.

The West and South boundaries are worth spelling out. District West is roughly bounded by West 16th Street to the north, Yale Street to the east, West 11th Street to the south and Ashland Street to the west, with 13 full blocks and 14 partial blocks of mostly residential buildings; smaller 33-foot-wide lots were platted along Ashland, Rutland and Tulane Streets, though two or more were often combined into a larger lot. District South is roughly bounded by Heights Boulevard to the west, Oxford Street to the east, West 11th Street to the north and West 4th Street to the south, with 26 full blocks and 16 partial blocks of residential, commercial and institutional buildings, directly south of and contiguous to District East.

A third classification was in use when the districts were designated. Potentially contributing marked a building that could become contributing if previous inappropriate alterations were reversed, and those buildings were subject to the same design review criteria as contributing buildings. In 2010 the qualifier was dropped to reduce confusion, and the design review criteria for contributing buildings stayed the same before and after that change.

Classification decides two things a renovation buyer cares about. Demolition or relocation of a noncontributing structure requires no certificate, while demolition or relocation of a contributing structure is reviewed against the ordinance's approval criteria. Alteration, rehabilitation, restoration and additions are reviewed against approval criteria on both kinds of structure, and new construction on a vacant lot in a district is reviewed against approval criteria as well.

Confirm the current classification with preservation staff before you price the work. That is the instruction the City prints itself, alongside a note that its published summary came directly from the preservation ordinance and was accurate at the time of publication.

Which parts of a renovation need a Certificate of Appropriateness, and which do not?

A Certificate of Appropriateness is required for projects that would alter the exterior appearance of a designated historic property. That includes altering exterior features, constructing an addition, constructing a new structure in a historic district, and relocating or demolishing a landmark or a contributing structure within one.

Ordinary maintenance and repair is exempt. The City defines it as work to correct or prevent deterioration, decay or damage that does not change the design, character, texture or material of any exterior feature, and the guidelines describe it as the least amount of work necessary to preserve the historic materials and features of a building, plus in-kind repairs. In kind means the same material type, design, dimensions, texture, detailing and exterior appearance. Re-roofing with in-kind materials with no change to the structure, shape or pitch of the roof is exempt. So is an alteration that cannot be seen from the street because the view is blocked by the original structure, where a fence, landscaping or a non-historic addition blocking the view does not qualify.

The rest of the exempt list is long enough to be useful: installation or removal of gutters and downspouts, storm windows and storm doors, window screens and screen doors, temporary emergency weather protection such as plywood over windows, porch ceiling fans, light fixtures and HVAC units; landscaping; fences; removal of non-historic aluminum or vinyl siding to reveal historic siding underneath; removal of burglar bars, accessibility ramps or lifts, and solar panels; installation of solar panels, satellite dishes, antennae, low-profile skylights or other roof equipment on the rear half of the roof; painting non-masonry surfaces on a contributing building; repainting previously painted masonry surfaces; and demolition of a noncontributing structure.

One line inside that list decides more Heights renovation scopes than any other. Replacement of historic materials, even in kind, is an alteration and requires a certificate, while ordinary maintenance and repair does not. Foundations sit on the same line: leveling a foundation in a way that does not raise or lower it is ordinary maintenance, and raising a foundation falls outside that definition.

The administrative path is broader than most owners expect. The Planning Director may approve a certificate for removing a window or door that was not original to the contributing structure and replacing it with one appropriate to the historic significance of the structure, with no change to the size, shape or location of the opening and no change to the trim, molding or other features associated with it; replacing exterior wall cladding that was not an original feature with appropriate cladding; the removal of non-historic additions, including attached garages or carports; non-historic decorative elements such as shutters or eave brackets; non-historic, low-profile skylights; canopies or awnings; and signs attached to the building.

The same path covers replacement of historic materials damaged beyond repair with materials of the same size, shape, material and pattern, so a small run of damaged siding can be matched exactly; installation of burglar bars, accessibility ramps or lifts, shutters, awnings or canopies, and roof equipment on the front half of the roof; construction of detached garages, garage apartments, carports and other secondary structures with a footprint of 600 square feet or less at the rear of the lot; and a rear porch no taller than the existing structure that does not extend beyond its existing side walls. New replacement siding, where no historic siding is present under non-historic siding, can be approved administratively as well.

Internal structural repair has its own conditions. Repair or reconstruction of internal structural elements, such as interior shiplap, that are essential to support the building envelope can be approved by the Planning Director where you demonstrate to the Director's satisfaction that the work can be accomplished without harming exterior features visible from the right-of-way, and where you provide a written statement from a structural engineer licensed by the State of Texas saying the same thing.

Everything else goes to a public hearing before the commission, which is where most exterior alterations, additions, new construction, relocation into or out of a district, and demolition land. Put the entire planned project in one application. Applicants who hold back future phases of a project to gain approval for initial work may find that later proposals are refused where the cumulative effect of all the changes is too great and collectively diminishes the integrity of the building.

A certificate sits separately from a building permit, and other City permits may apply even to exempt work. For that question the City points owners to Public Works Code Enforcement at the Houston Permitting Center.

What is the calendar, and what does the application cost?

Two clocks run, and the scope of the project decides which one you are on. A complete application for hearing review is due by 12:00 p.m. (noon) 22 days before the monthly meeting of the Houston Archaeological and Historical Commission, and public comments must be received by the close of business at 5 p.m. the day before the meeting to be included in the staff report the commission sees. A complete application on the administrative path is reviewed in 15 business days.

The City's own process chart puts a step ahead of both clocks: the applicant meets with staff prior to the application deadline. Staff then reviews the application for completeness and criteria compliance. A complete application generally carries the general application form signed by the legal property owner, a written description of existing conditions and proposed activity, material descriptions, specifications or samples, current photographs, historic documentation where a missing or damaged element is being restored, dimensioned plan and elevation drawings of existing and proposed conditions, and deed restriction compliance where applicable. The City also publishes Heights-specific worksheets for additions, new construction and windows.

The 2026 fees took effect January 1, 2026, and each one includes the required $33.56 administrative fee. New construction and additions, commercial and residential, is $336.49. Accessory structures are $148.50. Restoration and alteration with no additions is $152.08. Demolition or relocation is $372.56. For fee purposes an accessory structure is detached from the principal structures, incidental and subordinate to them, and uninhabitable, such as a garage, workshop, garden shed, gazebo, carport, pool house or storage building; a garage apartment, an accessory dwelling unit, or any structure designed as or used for sleeping quarters or living space sits outside that category.

Each application requires a separate fee. A revision to a previously approved certificate is $148.50, and a resubmission after a denial pays the full application fee for the project type. Where an incomplete application is not made complete by the next deadline, a new application fee is charged when a complete one is made. Fees are due no later than close of business on the Monday after the deadline, and paying late can leave the application deemed incomplete. All payments are completed on the Preservation Tracker site, and administrative approvals that fall outside the monthly deadlines are not processed until the fee is paid. Application fees are not refunded for incomplete, inactive or withdrawn applications, and the administrative fee is never refunded.

There is money on both sides of the outcome. A project with an issued certificate is eligible for a 50 percent discount on building permit fees and may be eligible for a City of Houston tax exemption. A project with a denied certificate is eligible for neither, and the City encourages a denied applicant to talk with staff about alternatives before filing again.

An applicant may appeal a commission decision by filing a written notice of appeal with the five-member appeals board that hears appeals of Houston Archaeological and Historical Commission decisions. That board can issue or deny the certificate, and its decision can be appealed to City Council, which can also issue or deny it.

Building without a certificate carries its own costs. City inspectors regularly inspect a property to check compliance with the approved certificate, and the City will issue a Stop Work Order for any project that is out of compliance. Stop Work Orders have the force of law, violating one is a separate offence, and work completed without an approved certificate is subject to possible fines, removal, and restoration of the building, site, monument or structure to its appearance prior to the violation. Where you want a change after a certificate is issued, take it to preservation staff before the crew acts on it.

What shape can an addition take, and how is compatibility decided?

Compatibility is judged against a small area rather than the whole district. The ordinance defines the context area as the blockface on which the proposed project is located and the opposing blockface, and only typical, existing contributing structures in it are used to determine whether a proposal is compatible. The Heights guidelines set no alternate definition of context area for the East, West or South districts.

The ordinance also provides that the Planning Director shall issue a certificate for any one, but not a combination, of three addition shapes on a contributing structure, where the project meets every condition for that shape. These have long been called the shall approve criteria.

A rear addition qualifies where it is no taller than the existing structure; set back from the side property lines at least as much as the structural walls of the existing structure; no wider than the wall it attaches to; built without demolishing any portion of the existing structure except the rear wall it attaches to; given a roof pitch less than or equal to the existing structure; and built on a building with no addition already approved by certificate.

A partial second-story addition qualifies where it is constructed over a one-story structure; stays inside the footprint of the existing structure; is set back from the front wall of the existing structure at least half the distance between that front wall and the farthest point of the rear of the structure; has a plate height that does not exceed the plate height of the story beneath it; has a roof pitch less than or equal to the existing structure; is built without removing any existing exterior walls; and goes on a structure with no addition already approved by certificate. The City measures from the front wall of the house rather than the front wall of the porch.

A side addition qualifies where it is no taller than the existing structure; attaches to only one exterior wall and does not extend past the existing rear wall of that side; is set back from the front of the wall it attaches to by at least 30 percent of the distance between the front and the rear of that wall; is no wider than half the distance it is set back; requires no demolition except the exterior wall it attaches to; keeps the roof pitch of the existing structure, except on cross-gabled or hipped roofs; and goes on a building with no addition already approved by certificate. The City prints the arithmetic beside it: an addition set back 20 feet from the front of the side wall may not be more than 10 feet wide.

One condition runs through all three shapes and catches the buyer of a house somebody else has already extended. None of the three is available on a building that has already had an addition approved with a Certificate of Appropriateness, so check the permit and certificate history for the address before anybody draws anything. A project may qualify under any one of the shapes, and a design that combines two of them goes to a hearing instead.

The guidelines are organized in the order the City recommends for work on a historic resource. Preserve an intact feature in good condition with regular maintenance. Repair a deteriorated or damaged feature to its original condition. Replace only a feature, or a portion of one, that cannot be reasonably repaired, and replace it in kind, using the same materials, detail and finish. Reconstruct a missing feature from appropriate evidence, such as historical photographs or features on similar adjacent properties.

One threshold decides which building code applies. A property may contain two dwelling structures and keep its Single Family Residential classification as long as the secondary structure, such as a garage apartment, is no larger than 900 square feet and contains only one living space. A main house plus a garage apartment with two units, or with one unit over 900 square feet, is classified Multi-Family and falls under the applicable building code.

What else binds a pre-1978 house, whatever the district says?

Federal law treats housing constructed prior to 1978 as target housing, except housing for the elderly or persons with disabilities or any 0-bedroom dwelling, and the district inventory, which lists each resource with its construction date, is where the answer for one address comes from. For the three Heights districts the 1940s are generally considered the end of the period of significance, so a contributing house sits well inside that date.

The subpart reaches transactions to sell or lease target housing apart from a sale at foreclosure. Before a purchaser is obligated under any contract to purchase target housing, the seller discloses the presence of any known lead-based paint and lead-based paint hazards, provides any available records and reports, provides a lead hazard information pamphlet, and permits a 10-day period, unless the parties agree in writing on a different period, for a risk assessment or inspection. The contract carries an attachment containing a Lead Warning Statement and the seller's statement disclosing known lead-based paint or indicating no knowledge of it. Paragraph 7.C of the One to Four Family Residential Contract (Resale), TREC No. 20-19, points at the same federal requirement for a residential dwelling constructed prior to 1978.

The rule then reaches the work itself. Minor repair and maintenance activities are those that disrupt 6 square feet or less of painted surface per room for interior work, or 20 square feet or less for exterior work, where none of the prohibited or restricted work practices are used. Window replacement and demolition of painted surface areas count as a renovation however small the area, and jobs other than emergency renovations, performed in the same room within the same 30 days, count as one job. Above those thresholds the firm must be certified by EPA, the work must be directed by a certified renovator, and a certified renovator performs a visual inspection for dust, debris or residue, re-cleaning and inspecting again while any remains. One exception applies: where a certified renovator, using an EPA recognized test kit and following the kit manufacturer's instructions, tests each affected component and determines that the components are free of lead at or above 1.0 mg/cm2 or 0.5 percent by weight.

A second federal threshold sits on the size of the project. A reconstruction, rehabilitation, addition or other improvement costing 50 percent or more of the market value of the structure before the start of construction is a substantial improvement under the flood program definitions, and start of construction there means the first alteration of any wall, ceiling, floor or other structural part of the building. The definition carves out two things. One is a project to correct existing violations of state or local health, sanitary or safety code specifications that the local code enforcement official has identified and that are the minimum necessary to assure safe living conditions. The other is any alteration of a historic structure, provided that the alteration will not preclude the structure's continued designation as a historic structure. Whether a given house and a given scope land inside that carve-out is a question for the City's floodplain office and preservation staff together.

Pull the seller's disclosure and read item 9 first. It asks whether the seller is aware of room additions, structural modifications, or other alterations or repairs made without necessary permits or not in compliance with building codes in effect at that time, and whether the seller is aware of any notices of violations of deed restrictions or governmental ordinances affecting the condition or use of the property. Unapproved exterior work inside a district becomes the buyer's problem after closing.

The contract gives the buyer room to look. The seller permits the buyer and the buyer's agents access to the property at reasonable times, and the buyer may have the property inspected by inspectors selected by the buyer and licensed by TREC or otherwise permitted by law. One test carries its own line: any hydrostatic testing must be separately authorized by Seller in writing. On a house with original drain lines, ask for that authorization early.

What can this page not tell you?

Cost is an address-and-scope question, answered by written quotes rather than by a rule of thumb. Get quotes for named scopes and keep them separate: foundation leveling as against raising the foundation; sistering or replacing floor framing; rewiring; replumbing and drain line replacement; window repair as against in-kind replacement; exterior paint under the EPA renovation rule; roof in kind; and the structural engineer's written statement where the administrative path requires one.

Whether a specific house contributes to its district, and whether a specific block carries a special minimum lot size or a minimum building line designation, are address-level answers the City holds. Preservation staff answer the first. The department maintains the current list of special minimum lot size blocks and areas on its website, which answers the second.

What the deed restrictions on a particular lot say comes from the recorded instrument itself, since these are private documents that vary lot by lot. Order the recorded documents for the legal description rather than for the subdivision name.

How long the City actually takes, as against the published 22-day and 15-business-day clocks, is a question for staff at the pre-application meeting, and so is which review path a particular scope will take.

The 2026 fee sheet is stamped with a revision date at the start of the year, so confirm the figure for your project type before filing. The preservation ordinance itself governs everything above, and both City summaries print the same caution: check with preservation staff for the most current ordinance criteria.