CLICK HERE to see our FREE guides on all things real estate, interior design, and construction
6th Avenue Homes
Garage Apartment in Mistletoe Heights, Fort Worth — a completed 6th Ave Homes project

Garage apartments in Mistletoe Heights

On most blocks here a garage apartment can only be a guest or parent suite. We pull your zoning first.

Our work · Mistletoe Heights Garage Conversion ADU

Design, drawn and built

What a garage apartment in Mistletoe Heights involves

A second front door on the same lot. Room for a parent, a place for an adult kid to land, a guest house, a studio, or an income unit, in a small complete home with its own kitchen, its own bath and its own key.

So the first work is a survey, a coverage calculation and an hour with the city's rules for your particular parcel. Some lots take one easily. Some need a variance. Some are a no, and hearing that in week one is worth more than a pretty rendering. After that it is ours end to end, drafting through framing through the walkthrough.

In Mistletoe Heights

A garage apartment gets further here than a backyard building does, and it is worth knowing why before you start sketching. The square-footage table people find first governs outbuildings nobody is meant to live in, and on a median lot around 7,700 square feet it caps those at a shed — but it never applied to a habitable structure, and it writes out garages and carports besides. What actually governs is height, placement and what every roof on the lot adds up to. The other rule is about use, and it is an address question, though not the same one as the overlay: about two-thirds of these blocks are zoned one-family, and on those what you build is an accessory dwelling — for a parent, a guest or an office — not a second independent residence. On the quarter zoned two-family, a second residence is on the table. Same street, different sentence, so we pull your zoning first.

A Mistletoe Heights garage apartment by 6th Ave Homes in Fort Worth — detail 3

Design and drafting, in house

The drawings come from the people who have to build them

Plans, elevations and selections are done here, by the team that will be on site — so the thing you approve on paper is the thing that gets built, and the number under it is real.

Level one construction floor plan: garage, covered front and back porches, kitchen with butler’s pantry, living and dining, primary bedroom and two baths, with room dimensions and window schedules marked

The construction set

Every room dimensioned, every window and door scheduled, ceiling heights called out — the drawing a plan reviewer stamps and a framer builds from.

Two 6th Ave Homes designers at a kitchen island with tile and stone samples, a wood flooring sample and brass hardware, an unrolled set of architectural drawings open in front of them

Where it gets decided

Samples and the drawing set on the same counter, with the designers who will see the job through — the tile is chosen against the plan, not after it.

A material board laid out flat: veined marble, honed black stone, hexagonal white tile, dark stained oak, and two upholstery swatches

The selections

Stone, tile, timber and cloth, chosen together and seen in daylight before anything is ordered.

Building in Mistletoe Heights

What the houses here actually ask for

1922

A genuinely pre-war neighborhood — the median house dates to 1922, four in five went up before 1940, and the original deed restrictions banned frame construction, which is why brick and stucco run these streets.

Houses this old have good bones and a floor plan built for another century. Most of the work here is reorganizing what's already there, carefully — and knowing exactly which rules apply to your address before anyone draws.

Median lot
7,740 sq ft

57.7 ft wide by 134.8 deep; half fall between 6,450 and 9,240

Median house
1,952 sq ft

a quarter are under 1,588, a quarter over 2,584

Single-family lots
428

the whole neighborhood, on about 172 acres above the Clear Fork

Measured from Tarrant Appraisal District parcel geometry, measured 2026-08-26

The ground rules in Mistletoe Heights

About two-thirds of the neighborhood is in the historic overlay. One corner is not.

This is an address question, never a neighborhood one, and it is the first thing we check. Inside the overlay, exterior work needs a Certificate of Appropriateness before the permit issues. Outside it, the standard permit path applies. Anyone who answers this from the neighborhood name is guessing with your schedule.

A-5 One-Family~64%

Min lot
5,000 sq ft
Min width
50 ft
Max coverage
50%
Front yard
20 ft

B Two-Family~28%

Min lot
5,000 sq ft attached / 7,500 detached
Min width
50 ft
Max coverage
50%
Front yard
20 ft

Your front setback is set by your neighbors, not by the table

Fort Worth's contextual front-yard rule lets the required setback follow the block face rather than the base 20 feet. It is the rule that most often moves a Mistletoe Heights addition on paper, and it is not something you can read off a zoning map — it comes from measuring the houses on either side of you.

Measured from City of Fort Worth GIS zoning and Tarrant Appraisal District parcels, sampled 2026-08-26

What it runs in Mistletoe Heights

$40,000$280,000

converting the garage you have at the low end, a detached new build at the top.

A garage apartment takes longer than an addition while costing less, which reads as odd until you see why: it is a separate structure with its own foundation, its own utility runs and its own permit, and none of that borrows from the house the way an addition does.

Ranges for a garage apartment in Mistletoe Heights, not a quote. Before there are drawings, a range is the only honest number anyone can give you — the spread between a high and a low bid on the same job is routinely 20% or more. We bill cost-plus, so when there is a plan you see the actual materials, labor and subcontractor costs, plus our overhead and profit, rather than a single figure with the unknowns padded into it.

What moves it

  • Converting versus building. A conversion finishes a foundation, walls and roof that already exist, which is why it is the cheapest way to add real square footage.
  • Kitchen and bath from nothing. Supply lines, drain lines and a panel upgrade into a building that has never had them is the single largest line on most conversions.
  • The foundation, on anything detached. A slab or pier-and-beam for a new structure is one of the biggest items on a ground-up build.
  • How far the utilities have to come, and whether a truck can get to the back of the lot.
Per square foot
$150–$350
How long it takes
6–9 months
Fort Worth permit fees
$800–$2,500
Carry a contingency
10–15% of budgetmore on a conversion, where demo is where the surprises live
Mistletoe Heights Whole-Home Remodel

The living room · Built by 6th Ave Homes

Mistletoe Heights Whole-Home Remodel Step inside this one

What we'd actually do here

The moves that matter in Mistletoe Heights

Every neighborhood rewards something different. These are the three that come up on almost every garage apartment we take on.

  1. Build where the block already builds

    The district guidelines say outbuildings here have always sat at the rear and to the side, on the lot lines, and that this is still appropriate. Working with that is the shortest way through.

  2. The house in front sets the height

    An accessory dwelling may not out-top the house in front of it, and inside the overlay it is asked not to overpower it either. That pair decides the massing, so it gets drawn first.

  3. Three feet, once it is behind the house

    On A-5 blocks — most of this neighborhood — a detached garage behind the rear wall of the house drops to three-foot side and rear setbacks. That relief is what fits a real apartment on a lot under sixty feet wide.

Both numbers, one conversation

Remodel it, or sell it?

You love the street. The house is the question — and in a pre-war neighborhood, it's a real one.

What the work would cost

Priced by the people who'd build it.

Design, drafting and construction, in house.

What it'd sell for as-is

Valued by the agents who sell this market.

6th Ave Homes is a licensed brokerage.

A remodeler can price the work. An agent can price the house. We do both.

We're one of the few companies in Fort Worth built to answer it straight — our agents sell in this market and our design and construction teams price the remodel, so you can weigh a real renovation number against what the house would actually sell for. Sometimes the answer is a second story. Sometimes it's a listing. We'll tell you which one we'd pick and why.

How it works

A garage apartment in Mistletoe Heights, in three steps

The people who draw it, price it, and build it share a hallway — which is why the plan you fall in love with is the plan that actually gets built.

01

Meet Up

We walk the house, listen to how you actually live in it, and talk honestly about budget before anyone draws a line.

02

Team Up

Our designers and drafting team put a real plan on paper — layout, selections, and a number you can build around.

03

Glasses Up

We build it, keep you in the loop, and hand back a home that feels like you. Pour something good.

A Mistletoe Heights garage apartment by 6th Ave Homes in Fort Worth — detail 12

Our work in Mistletoe Heights

Mistletoe Heights Garage Conversion ADU

Garage Apartment

A garage can be more than a place to park. In historic Mistletoe Heights, the 6th Ave Homes team turned this one into a guesthouse and office with charm to spare. Come see the guesthouse in the gallery.

See the whole project

The neighborhood

A hundred years old, on the bluff over the Clear Fork.

Mistletoe Heights sits on the bluff above the Clear Fork, and the ground does what that sounds like — the western edge drops sixty to seventy-five feet before it flattens onto the plateau the rest of the neighborhood sits on. The Trinity Trails run along the bottom of it.

Forest Park physically adjoins the neighborhood. The zoo, Trinity Park and the Botanic Garden are all about a quarter mile out, Log Cabin Village a little further, and the Forest Park miniature railroad has been running across the Clear Fork since 1959.

The Forest Park Gates at Park Place are the front door: two limestone towers with red tile roofs, built in 1917 and 1918 and city landmarks since 2002. The ornamental streetlights on Irwin are documented historic fixtures. The Ponton House on Mistletoe Drive, a Spanish Eclectic by Joseph Pelich, is a Recorded Texas Historic Landmark.

The overlay is the thing people get wrong. It covers about two thirds of the neighborhood, not all of it — one corner opted out when the district was designated in 2002. Two houses on the same block can sit on opposite sides of that line, and nothing about it is visible from the street.

What's around it

  • The Forest Park Gates

    The threshold at Park Place. You know you have left the main road the moment you pass between them.

  • Fort Worth Zoo

    Founded 1909 and the oldest continuous zoo site in Texas, a quarter mile out.

  • The Trinity Trails

    At the foot of the bluff on the Clear Fork, part of a system running more than a hundred miles.

  • Log Cabin Village

    The city's living-history museum, open since April 1966.

  • Park Place Village

    The commercial corner at 8th Avenue and Park Place, just east of the neighborhood.

  • Mistletoe Boulevard
  • Mistletoe Drive
  • Mistletoe Avenue
  • Buck Avenue
  • Harrison Avenue
  • Clara Street
  • Edwin Street
  • Irwin Street
  • Jerome Street
  • Weatherbee Street
  • Stonebridge Place
  • Forest Park Boulevard

What that means for your garage apartment

A third of the houses here record no garage at all, which is why this question comes up so often on these streets. On a fifty-eight-foot lot it is a real design problem rather than a catalog choice. The whole job is getting a second dwelling onto the back of the lot without the alley elevation reading like a storage building somebody parked there.

Walk your Mistletoe Heights house with us

Inside the work

The rooms, up close

See the rest of this house
Mistletoe Heights Garage Conversion ADU: a Mistletoe Heights garage apartment by 6th Ave Homes in Fort Worth, photo 4
Mistletoe Heights Garage Conversion ADU: a Mistletoe Heights garage apartment by 6th Ave Homes in Fort Worth, photo 5
Mistletoe Heights Garage Conversion ADU: a Mistletoe Heights garage apartment by 6th Ave Homes in Fort Worth, photo 6
Mistletoe Heights Garage Conversion ADU: a Mistletoe Heights garage apartment by 6th Ave Homes in Fort Worth, photo 7
Mistletoe Heights Garage Conversion ADU: a Mistletoe Heights garage apartment by 6th Ave Homes in Fort Worth, photo 9
Mistletoe Heights Garage Conversion ADU: a Mistletoe Heights garage apartment by 6th Ave Homes in Fort Worth, photo 11

Before you start

A garage apartment in Mistletoe Heights: the questions worth asking first

The answers that change a Mistletoe Heights project are usually the ones nobody asks until the drawings are done. We work through these first.

“We chose 6th Ave for our extensive home renovation because we needed a one stop shop for planning, design, general contractor and project management. We were very happy with the process from beginning to end and love the end result! Our project finished on time and even a little bit under budget, and the entire staff at 6th Ave (especially Dustin, Lee and Kayla) were great to work with.”
Cliff E. · verified review
Is my Mistletoe Heights house actually in the historic district?

That's an address question, not a neighborhood one — and it's the first thing we check. About two-thirds of Mistletoe Heights sits under the city's historic overlay; one corner opted out at designation and carries no overlay at all. If your address is inside it, exterior work needs a Certificate of Appropriateness before the permit. If it isn't, the standard permit path applies. Anyone who answers this from the neighborhood name is guessing with your schedule.

Does the review add time to the schedule?

On overlay addresses it adds a real step with a real calendar, and it's very manageable when the drawings anticipate it rather than discover it. That's the practical advantage of the people who draw your plans sitting down the hall from the people who build them — the submittal is drawn to be approved the first time.

Does work inside the house need approval too?

No. A bath or kitchen that stays within the existing walls doesn't go to the Commission, whatever your address. It's worth confirming scope early anyway, because one replaced window or a relocated exterior door quietly turns an interior project into a reviewed one.

What actually limits the size of a garage apartment here?

Height, mostly — and it's set by your own house, not by the code. An accessory dwelling can't stand taller than the house in front of it, so on a low house that decides the whole thing before anyone talks square footage. Floor area is the rule people read first, but garages and carports are written out of the accessory-size cap. Lot coverage isn't close to binding on a typical lot here either; the house hasn't spent it. What's left is placement — rear and side, behind the rear wall of the house, at three feet on the one-family blocks. We run your parcel before anyone draws.

Does the design have to look historic?

It has to be compatible, which is not the same thing and is worth understanding before you fall in love with a rendering. Inside the overlay, an accessory structure is on the list of work that needs a Certificate of Appropriateness, and the guidelines that govern it are about materials, placement and not overpowering the house in front — they don't require a pastiche. Outside the overlay, none of it applies. Either way the practical move is the same: we pull the guidelines that actually govern your address, draw the massing and the materials against them, and hand in a submittal built to be approved rather than revised into approval.

What is the difference between a garage apartment, a casita, and a guest house?

Mostly where it sits and what it is attached to. A garage apartment lives above or beside a garage; a casita or guest house stands on its own. Zoning cares about that distinction, and so does the way the backyard feels afterward, but all three are the same class of building.

Can we keep parking in the garage?

Yes. Living space goes over the top, or beside it, and the cars stay where they are. It costs more than converting the garage you already have, and it keeps the thing you use every day.

4 years running

Best Home Builder & Remodeler

Fort Worth MagazineFort Worth Chamber Small Business of the Year4.7 stars from 91 Google reviews as of September 2026

A Fort Worth couple in the kitchen of their finished garage apartment by 6th Ave Homes

Thinking about a garage apartment in Mistletoe Heights?

Tell us about the lot, or the house that isn't big enough anymore. We'll tell you honestly what it can carry, draw it, and price it — before anyone signs anything.

Schedule a Meetup