Services
Design-build, ground-up buildings, tenant build-outs and preconstruction budgets.
See servicesCommercial buildings, designed and built as one
Design-build for clinics, shops, warehouses and offices across Spokane and North Idaho.
Start a projectOne contract. One crew.
One signature on the whole building
Our architect, engineer and superintendent work from one budget and one schedule. The price you approve before drawings is the price you pay at keys.
Owners on record
What owners say after opening day
4.9 average from 60+ owner reviews (sample)
-
They gave us a fixed number in week four and never moved it. We opened the clinic nine days early.
Priya N. Practice owner, Spokane Valley
Sample review
-
Our warehouse kept shipping the whole time they built the office wing next door. The superintendent texted photos every Friday.
Grant W. Operations manager, Post Falls
Sample review
-
One contract and one person to call. After two bids that fell apart elsewhere, that alone was worth it.
Leah S. Property owner, Liberty Lake
Sample review
Four services
What we build for owners and tenants
From a 3,000 sq ft dental suite to a 60,000 sq ft flex building, with one team from the first sketch.
-
Design-build
One contract from sketch to keys
We design, engineer, permit and build under one agreement, with a guaranteed maximum price set before construction drawings.
5,000-60,000 sq ft · GMP contract
-
Ground-up commercial
Clinics, shops and flex buildings
Steel, tilt-up and wood-frame buildings on raw or infill lots, from site work to the final occupancy inspection.
Typical build: 7-12 months
-
Tenant improvements
Build-outs while the building stays open
Offices, clinics and retail interiors. Night and weekend shifts when the neighbors keep trading.
Typical: 6-14 weeks
-
Preconstruction
A real number before you sign
Site feasibility, zoning checks, budgets and value engineering before you buy the lot or sign the lease.
Flat fee, credited if we build it
How we work
Four stages, one schedule. You see the budget at every one of them.
Step 1 · 2-4 weeks
Feasibility and budget
A site walk, a zoning check and a budget your lender can underwrite.
Step 2 · 3-5 months
Design and permits
Our architect and engineers draw it while estimators price it, so the design never outgrows the budget.
Step 3 · per schedule
Build
Our own superintendent on site every day, open-book costs and a photo report every Friday.
Step 4 · keys
Handover and warranty
Punch list done before keys, manuals in one binder, and a 2-year warranty with a direct line.
Recent work
Case studies
Three recent jobs. Sample projects: your own go here at launch.
-
2025Design-build
Mullan Road Medical Pavilion
-
2024Ground-up
Trent Avenue Flex Warehouse
-
2024Tenant improvement
Riverside Engineering Offices
About the project
Mullan Road Medical Pavilion
A family practice outgrew two leased suites. We found the lot, priced it before they bought it, and designed a two-storey clinic around their patient flow: 24 exam rooms, imaging and a drive-up lab.
- Year
- 2025
- Location
- Spokane Valley, WA
- Size
- 18,400 sq ft
- Schedule
- 11 months
9days
opened ahead of the contract date
1.8%
under the price approved before drawings
0
change orders from design gaps
Result
Seen by patients nine days early
Sample project. On your site this is one of your own jobs, with the numbers you can stand behind.
What is Haldane?
Started as a drafting room. Still draws every job.
Mara Haldane opened a two-desk design office in 1998 and hired her first superintendent two years later. Today 38 people design and build from one office on Trent Avenue, and whoever drew your building is at the walkthrough.
- Founded
- 1998, Spokane
- License
- WA GC # HALDADB874JQ
- Insurance
- Bonded, $5M liability
- Warranty
- 2 years on workmanship
- Safety
- OSHA 30 site leads
- Rating
- 4.9 from 60+ owners (sample)
Team
The people on your job
Six leads you will actually meet. Every project gets one of each.
Mara Haldane
Founder, principal architect
Dev Okafor
Director of preconstruction
Ruth Lindqvist
Structural engineer, PE
Cal Brennan
Senior superintendent
Ana Ruiz
Project manager
Tom Iverson
Estimating lead
Values
What you can hold us to
One number, early
A guaranteed maximum price before construction drawings. If we come in under it, the savings are yours.
Our own superintendents
The person running your site works for us, not a staffing agency, and stays from footings to keys.
Clean, safe sites
Fenced, swept daily and run by OSHA 30 superintendents. Neighbors get our cell number on day one.
A warranty we answer
Two years on workmanship, a direct line to your project manager, and a one-year walkthrough on the calendar.
Contact
Tell us about the site, the lease or the sketch. We call back within one business day.
Where we work
Spokane and North Idaho
Within 90 minutes of the yard: Spokane, Spokane Valley, Liberty Lake, Cheney, Airway Heights, Coeur d'Alene, Post Falls and Sandpoint.
Office and yard
Spokane office
3815 E Trent Ave, Spokane, WA 99202
Mon-Fri 7-4:30, site visits by appointment
Service area
Within 90 minutes of the yard
Spokane, Spokane Valley, Liberty Lake, Cheney, Airway Heights, Coeur d'Alene, Post Falls and Sandpoint.