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ZH Construction (425) 555-0164 Check My Lot

Feasibility, Design and Permitting for Middle Housing

Most middle housing projects that fail, fail before construction: the lot cannot take the units, the sewer is too shallow, the city requires frontage improvements nobody budgeted. Our pre-construction service exists to find those problems first. You can hire it on its own; if you build with us, the fee is credited against the construction contract.

UNIT A
UNIT B
DRIVE
STREET
Option A
TH 1
TH 2
TH 3
TH 4
SHARED DRIVE
STREET
Option B
GREEN
C1
C2
C3
C4
C5
SHARED PARKING
STREET
Option C
Architectural plans and a laptop on a deskPlans
Hand measuring a floor plan drawing with a scale rulerFloor plan
Man holding up building plans in a room under constructionPlan check
Stage 1

Feasibility Package

  • Zoning and middle housing rules for the parcel, including transit distance and any city-specific bonuses
  • Critical areas screening: steep slopes, wetlands, streams, landslide hazard
  • Utility check: sewer availability and depth, water main size, power service
  • Tree inventory against the city's retention rules
  • Two to three site plan options with unit counts
  • Cost range and a simple pro forma for each option
Stage 2

Design and Engineering

We coordinate a licensed architect or residential designer, a civil engineer for stormwater and utilities, a structural engineer and, where needed, a geotechnical engineer and arborist. We review every drawing set for buildability and cost before it goes to the city.

Black-and-white floor plan of a houseFloor plan
Concrete wall with rebar and timber forms on a building siteStructure
White architectural model in front of drawings on the wallModel
Stage 3

Permits

  • Pre-application meeting with planning, building, engineering and fire
  • Building, site development, right-of-way and demolition permits
  • Unit lot subdivision application
  • Correction responses and resubmittals
  • Utility applications with the city or the local water and sewer district

Under state law, design review for middle housing must be administrative — handled by staff, without a public hearing — which keeps the timeline more predictable than older processes.

04

Deliverables You Keep

Even if you stop after feasibility, you keep the zoning memo, site plans and cost model. They are yours to take to any lender, partner or builder.

05

Feasibility FAQ

QHow long does the feasibility package take?

Two to four weeks, depending on how quickly utility districts respond.

QCan you take over a project another designer started?

Yes. We review the existing drawings, flag issues and carry the permit through.

Free lot review

Start With a Feasibility Package

Send us the address. Within two business days you get a written lot review: how many units the city allows, what the site will cost to prepare, and which housing type makes the most sense for your goals.

Get a Lot Review Call (425) 555-0164