For a 3,000 sq ft custom new home in the Austin area, full architectural services typically run $50,000 – $140,000 — about 6%–16% of construction cost. These ranges come from the Architects List cost tool, built on Austin-Round Rock-San Marcos, TX wage data from the US Bureau of Labor Statistics and construction costs from the US Census.
| Project | Architect fee | Share of construction | Construction (est.) |
|---|---|---|---|
| New custom home, 3,000 SF | $50,000 – $140,000 | 6%–16% | $629,000 – $1,152,000 |
| Whole-house renovation, 2,000 SF | $38,000 – $118,000 | 9%–26% | $251,000 – $768,000 |
| Addition, 600 SF | $17,000 – $46,000 | 9%–24% | $119,000 – $288,000 |
| ADU or guest house, 700 SF | $15,000 – $45,000 | 7%–21% | $132,000 – $323,000 |
| Home size | Architect fee | Design hours (approx.) |
|---|---|---|
| 2,000 sq ft | $38,000 – $99,000 | 250–650 |
| 3,000 sq ft | $50,000 – $140,000 | 340–920 |
| 4,500 sq ft | $72,000 – $198,000 | 470–1300 |
Implied billing rate about $152/hour. Full services = design through construction administration; consultants (structural, survey, civil, energy) are extra.
For a 3,000 sq ft custom new home in the Austin area, full architectural services typically run $50,000 – $140,000, about 6%–16% of construction cost. A 2,000 sq ft whole-house renovation typically runs $38,000 – $118,000. An ADU or guest house of about 700 sq ft runs $15,000 – $45,000.
Most residential architects charge a percentage of construction cost, a fixed fee broken into design phases, or hourly rates for smaller or early-stage work. Smaller projects pay a higher share of construction cost because design effort does not shrink in proportion to size.
The median architect salary in the Austin-Round Rock-San Marcos, TX area is $96,600, 3% below the national median of $99,280 (BLS). Local construction costs matter as much: new single-family homes in this part of the country run a median of about $159 per sq ft (US Census).
Consultants such as structural engineers, surveyors, civil engineers and energy modelers usually bill separately, as do permit and plan-review fees charged by the building department. Ask each architect which consultants their fee includes.
Sources: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) for Austin-Round Rock-San Marcos, TX; US Census Bureau, Survey of Construction. Estimates are ranges for planning, not quotes — each architect sets their own fees.