The 1920s did not produce one universal house style. It was a period of architectural pluralism in which Craftsman bungalows, Tudor Revival, Colonial Revival, Spanish Colonial, Prairie, and Art Deco forms coexisted in the same neighborhoods.
You may be standing on the porch of a Salt Lake City bungalow wondering whether its broad eaves make it Craftsman, whether a later brick addition changed its identity, or whether the replacement windows erased something important. After inspecting older Utah exteriors, I've learned that the useful question isn't just, “What style is this?” It's, “Which parts of this house still carry its original architectural language, and how can new work support them?”
That distinction matters before you choose siding, roofing, windows, or porch materials. A historically convincing renovation doesn't require every original component to survive. It requires the visible proportions, material relationships, and practical functions of the house to remain legible.
Why There Is No Single 1920s House Style
On one Salt Lake City block, a low Craftsman porch may sit beside a steep Tudor gable and a later enclosed entry. Builders and homeowners used competing plan books, materials, and preferences during the same period, so the façade often reflects more than one influence. The practical question is which composition dominates the street-facing elevation and which parts were altered later.
The Craftsman bungalow remained a common choice for middle- and working-class households from roughly 1900 through 1935 (Maryland architectural history guidance). Its relatively inexpensive construction, low profile, broad roof overhangs, open porch, and simplified plan suited growing neighborhoods. On an inspection, those proportions matter more than a single feature such as exposed rafter tails or a replacement front door.
Revival styles beside practical housing
Tudor Revival used a different visual system. Steep roofs, front-facing gables, narrow multi-light windows, decorative chimneys, and half-timbering created a taller, more romantic appearance. The style was especially popular during the 1920s, then declined in the late 1930s. Colonial Revival relied on symmetry, classical entry details, and familiar sash-window arrangements.
Spanish and Mediterranean Revival houses introduced stucco, tile roofs, arches, and regional imagery, particularly in western markets. Prairie-influenced designs emphasized horizontal lines and deep roof projections. Emerging Art Deco added zigzags, geometric ornament, vertical emphasis, and stepped massing. It appeared more often in commercial and public buildings, though residential details sometimes borrowed its forms.
Practical rule: Identify the dominant roof, porch, window rhythm, and entry proportions before choosing a national style label.
That diagnosis guides exterior work. Preserve original massing, porch scale, and material relationships when they remain sound. Replace failing components with products that match their proportions, joint patterns, and visual weight. A generic siding, window, or porch package can flatten a façade that originally depended on layered forms. The right renovation supports the individual house rather than forcing it into a catalogue category.
Identifying the Major 1920s American House Styles
Start at the curb and read the house in layers. Roof form usually tells you more than paint color, while porch proportions, window rhythm, and entry placement help confirm or challenge your first impression. Later siding, enclosed porches, replacement windows, and additions can obscure the original design, so map what remains instead of relying on one decorative feature.
Read the roof and porch first
A Craftsman bungalow typically presents a low-pitched gable or hip roof, wide overhangs, exposed rafter tails, and a front porch supported by substantial tapered columns. Natural-looking materials and earthy colors often reinforce the grounded massing. The porch isn't an accessory. It's one of the features that makes the house read as Craftsman.
A Foursquare usually has a boxier mass, a hipped roof, dormer windows, and a more symmetrical arrangement. It may share porch and window details with a bungalow, but its taller, more compact volume changes the overall composition.
Colonial Revival depends on order. Look for a symmetrical façade, a centered entry, multi-pane double-hung windows, pedimented or pilastered door surrounds, and brick or clapboard surfaces. If an addition disrupts the symmetry, compare its materials and joint patterns with the original front elevation before assuming the entire house was built that way.
Distinguish vertical and horizontal expressions
Tudor Revival is easier to identify from its roofline and openings. Steep cross-gables, prominent chimneys, decorative half-timbering, and narrow multi-light or leaded windows create a vertical, picturesque composition. Half-timbering applied only to a later addition can be decorative rather than structural, so inspect where it appears and how it meets the original wall.
Spanish Colonial Revival commonly uses stucco walls, low-pitched red tile roofs, arched doors or windows, and wrought-iron details. In Utah, a Spanish-influenced house may use a simpler material palette than a California example, with local masonry or altered roof details responding to weather and maintenance.
Prairie-style houses emphasize horizontal lines, strongly overhanging roofs, grouped windows, and broad, low silhouettes. Art Deco-influenced residences are less common, but smooth stucco, geometric relief panels, stepped massing, and strong vertical accents can reveal the influence.
Walk around all four sides and record three things: which cues repeat, which ones stop abruptly, and which materials show different weathering. A front porch that aligns with the original roof, for example, deserves more weight than a replacement light fixture.
| Style | Roof form | Key exterior features | Common siding materials |
|---|---|---|---|
| Craftsman bungalow | Low gable or hip | Broad eaves, exposed rafters, tapered porch columns | Wood siding, shingles, brick, stucco |
| Tudor Revival | Steep cross-gables | Half-timbering, prominent chimney, narrow windows | Brick, stucco, wood accents |
| Colonial Revival | Gable or hip with formal symmetry | Centered entry, sash windows, classical trim | Brick, clapboard, stucco |
| Spanish Revival | Low-pitched tile roof | Stucco, arches, ironwork, courtyard-oriented entries | Stucco, masonry, tile accents |
How 1920s Styles Appear in Utah
Salt Lake City's 1920s neighborhoods reflect national design trends, but local conditions changed how those styles were built and altered. Housing expansion after about 1917 produced comfortable, moderately sized homes outside older urban cores, while plan books and standardized builder designs made period façades easier to reproduce for mass-market buyers (Old House Online's overview of houses from 1920 to 1940).
Returning servicemen helped increase interest in European-derived imagery, including English Tudor and Mediterranean forms. Growing automobile ownership also supported lower-density suburban layouts and bungalow districts. A Utah Tudor may therefore share its steep gable and half-timbering with a house elsewhere, while using a different masonry veneer, roof assembly, or porch arrangement.
Climate changes the renovation priority
Northern Utah's heating-dominated climate makes roof drainage, air leakage, window performance, and moisture control more urgent than stylistic purity. Broad overhangs can protect wall finishes and window trim, but only if gutters, flashing, and roof edges still direct water away from the building. A thick-looking brick or stucco exterior also doesn't tell you whether the wall behind it is wood frame, hollow clay tile, or concrete block.
That hidden construction matters. Similar-looking Tudor and bungalow exteriors can have different load paths and different retrofit requirements. A replacement window that works well in a wood-framed opening may need a different flashing strategy in a masonry wall.
Original character versus later alteration
Look for breaks in material continuity. A newer porch enclosure may have different mortar joints, window proportions, roof pitch, or foundation alignment. A later siding installation may cover original shingle bands or corner boards. Paint layers, fastener patterns, and weathering can help identify what belongs to the original construction.
Utah houses also commonly carry practical modifications made long after construction. Some are harmless, while others trap water or overload an older structure. Preserve the features that establish the street-facing composition, but evaluate every addition by how it handles snow, freeze-thaw exposure, drainage, and structural connection.
Assessing Structural Conditions Before Upgrading
A 1920s exterior can look sound while hiding weak connections, deteriorated sheathing, or a foundation condition that changes the entire renovation plan. Start with structure, drainage, and load paths before selecting paint colors or ordering replacement siding.
1920s residential construction was transitional. Craftsman-influenced frame houses commonly used dimensional-lumber framing on continuous concrete-block foundations, wide roof overhangs, and exposed rafter tails. Masonry variants increasingly used concrete block, sometimes concealed behind brick, stone, or stucco veneer (building-construction guidance for older residential structures).
What to expose and document
The exterior finish isn't automatically the structural wall. Before specifying cladding attachment or window flashing, determine whether the wall system is wood frame, hollow clay tile, or concrete block. A small, carefully chosen inspection opening at a representative wall and eave can reveal more than a broad visual survey.
Use a sequence that answers practical questions:
- Map the load path: Follow roof loads through rafters, top plates, studs or masonry, and the foundation.
- Inspect representative openings: Check window heads, sills, porch connections, and corners for water damage or movement.
- Identify sheathing: Board sheathing was typical during the period and offers less racking resistance than modern plywood or OSB.
- Document continuity: Note where sheathing, framing, masonry, and foundation connections stop or change.
- Verify current requirements: Have a qualified professional review current wind, snow, and seismic requirements before adding heavy finishes or replacing the roof.
Board sheathing can change the approach to seismic and high-wind work. Engineered shear panels and improved roof-to-wall connections may be necessary, but those decisions belong to a qualified professional who has inspected the actual structure.
Before you cover anything: Photograph wall and eave conditions, record material transitions, and keep the inspection notes with your renovation documents.
If the condition is unclear, an independent structural integrity assessment can help organize the investigation before cosmetic work begins. That kind of review is particularly valuable when a contractor proposes adding masonry, fiber cement, or another heavier exterior system.
The payoff is practical. You avoid attaching new finishes to deteriorated framing, flashing a window into an unknown wall assembly, or sealing moisture inside a roof edge that already needs repair.
Energy Upgrades That Preserve Character
1920s houses were designed around daylight and natural ventilation, not modern thermal performance. Operable double-hung and casement windows, along with larger glazed areas, helped bring air and light indoors, but the same glass can create winter heat loss and summer solar gain. Federal housing research notes that windows remain substantially weaker insulators than opaque walls (HUD research on energy-conserving features in older homes).
That doesn't make original windows automatically bad or replacement windows automatically right. It means the opening, surrounding wall, drainage, air leakage, and ventilation strategy need to be evaluated together.
Treat the opening as part of the wall
Measure the whole opening, not just the visible glass. Inspect the sill and head for drainage, look for hidden storm-window conditions, and check whether trim can remain while a new unit is properly flashed. A low-leakage replacement can improve comfort, but tightening the envelope may increase condensation risk where the original wall lacks continuous insulation.
The most effective exterior improvements often preserve the visual rhythm:
- Keep the proportions: Match the original height-to-width relationship and preserve divided-light patterns where they define the façade.
- Control air leakage: Seal the surrounding opening and adjacent wall before blaming the glass alone.
- Address the wall assembly: Improve insulation and air sealing where practical, while keeping drainage paths open.
- Protect ventilation: Operable units, screened openings, or carefully planned mechanical ventilation can retain the house's natural-air strategy.
- Coordinate the roof: Use asphalt, metal, or designer shingles that support the existing roof geometry and color palette.
Preserve what people actually see
Street-facing trim, porch posts, sash proportions, and roof overhangs carry more character than hidden glass technology. A triple-pane unit can work in a period renovation when the frame depth, muntin pattern, casing, and flashing are coordinated with the original opening. It fails visually when a contractor installs a broad, undivided picture window in a façade built around narrow vertical openings.
The same principle applies to siding. Vinyl, fiber cement, and composite systems can support a 1920s exterior when their scale, shadow lines, corner details, and color fit the house. A smooth modern panel that eliminates shingle courses or lap-siding rhythm may be durable, but it can flatten the design.
Good energy work disappears from the street. The house should look intentional, while the improvements show up in steadier temperatures, fewer drafts, and better moisture control.
Renovation Sequence and Prioritization Strategy
Window replacement is often the first upgrade homeowners consider because the improvement is visible. That order can be backwards. A failing roof, blocked drainage, uncontrolled air leakage, or wet wall should be addressed before a new window is expected to solve comfort problems.
Begin with water and safety
Use the building as the sequence. Inspect the roof covering, flashings, valleys, gutters, downspouts, wall transitions, porch roofs, and foundation drainage. Check wiring and plumbing conditions before closing walls or insulating around them. Cosmetic work should follow the systems that protect the structure.
A practical order looks like this:
- Roof and drainage: Stop water entry and correct runoff before sealing wall openings.
- Structural review: Confirm the foundation, framing, masonry, sheathing, and roof-to-wall connections.
- Moisture investigation: Find wet insulation, deteriorated sills, failed flashing, and trapped water behind cladding.
- Air sealing and insulation: Improve the envelope where the assembly can dry safely.
- Window decision: Repair, add storm protection, or replace based on opening condition and whole-building performance.
- Exterior finish: Install roofing, siding, trim, and paint after the protective layers are sound.
Replacing windows first may produce less benefit than correcting air leakage or missing insulation. Retaining original windows also isn't automatically the best choice when frames are failing, openings have already been altered, or the units cannot provide durable weather protection.
Think in packages, not isolated products
A 1924 Harvard house retrofit combined ground-source heat-pump technology, automated window operation, daylight strategies, solar ventilation, cross-ventilation, and triple-glazed windows. That example shows why high performance usually depends on coordinated systems rather than one product substitution (coverage of the Harvard house retrofit).
Guidance reported for deep energy retrofits describes potential energy-use reductions of 50% to 90%, but that range isn't a typical promise for every 1920s home. Results depend on climate, baseline condition, occupant behavior, and retrofit scope. Heritage-retrofit research has also reported heating-demand reductions of 84% to 86% for a full-renovation scenario, which reinforces the value of complete packages rather than isolated swaps.
Measure comfort and moisture before and after work. Track cold rooms, draft locations, window condensation, attic conditions, and indoor humidity. Those observations tell you whether the next investment belongs in the glass, wall, roof, ventilation, or heating system.
Making Exterior Upgrade Decisions for Your Home
A house doesn't become more authentic just because every old component remains. Deteriorated trim, failing windows, unsafe porch structures, or moisture-incompatible repairs can damage the character homeowners are trying to protect. A carefully proportioned replacement may preserve the façade better than an original component that has lost its shape and function.
Use a four-part façade diagnosis
First, identify the dominant composition. Look at roof geometry, porch scale, entry placement, window rhythm, and the balance between horizontal and vertical forms. Don't let one decorative detail override the full elevation.
Second, separate original work from later changes. Compare material thickness, joint patterns, weathering, fasteners, and alignment. Additions often reveal themselves where rooflines, foundations, or window spacing change abruptly.
Third, rank the visible character features. Roof overhangs, porch proportions, window rhythm, siding scale, chimneys, and entry details usually matter more from the street than hidden insulation or new mechanical equipment. Keep those relationships intact even if the underlying components change.
Fourth, select modern materials by proportion and texture. Match roofing color and shadow lines. Match siding exposure and corner treatment. Match window shape, muntin arrangement, casing depth, and installation position. The objective isn't to make new materials pretend to be old. It's to make them belong to the composition.
A 2025 preservation report describes a growing preference for sustainable materials and notes that historic buildings often contain passive features such as operable windows, natural daylight, overhanging eaves, and masonry that can be enhanced instead of erased (reporting on sustainable historic preservation materials). That approach fits Utah houses well. Preserve the passive features that still work, then improve their weak points.
Decide when replacement is defensible
Repair makes sense when the original component is sound, repairable, and important to the façade. Replacement becomes more defensible when the component is structurally unsafe, repeatedly admits water, cannot be integrated with moisture control, or has already been substantially altered.
Before approving exterior work, ask:
- What must remain visible? Usually the roof profile, porch scale, window rhythm, entry composition, and characteristic trim.
- What can change discreetly? Insulation, flashing, air sealing, underlayment, and carefully detailed window components.
- What should not be copied blindly? Failing materials, unsafe connections, or details that trap water.
- What deserves a second opinion? Any proposal that removes original trim, changes openings, adds heavy cladding, or conceals a structural condition.
For additional planning ideas, the old house exterior makeover guide can help you compare preservation-minded exterior choices before discussing materials with a contractor. Use it as a starting point, then have the actual wall, roof, and window conditions evaluated on site.
Superior Home Improvement helps Salt Lake City homeowners update 1920s exteriors with energy-efficient windows and patio doors, high-performance roofing, and premium siding selected for Utah conditions. Visit Superior Home Improvement to request a consultation and discuss which character-defining features to preserve, which systems to replace, and how to build a clear renovation plan.
