Planning
Permits: Which Office Actually Governs Your Project
Waukesha County contains dozens of separate municipalities, each writing its own rules. The useful question is never "what does the county require" - it is which office governs your address.
People ask what the permit rules are for hardscaping here, and there is no single answer, because "here" is not one jurisdiction. The county contains a large number of cities, villages and towns, each setting its own zoning and building requirements. Brookfield does not have to match New Berlin, and neither has to match Pewaukee.
So the first job is not reading a rule. It is establishing whose rule applies.
There are up to three layers
| Layer | Applies to | Concerned with |
|---|---|---|
| City, village or town | Every property | Zoning, setbacks, building permits, sometimes impervious surface limits |
| Waukesha County | Parcels in the shoreland band | Shore setback, land disturbance near navigable water |
| Subdivision or HOA | Where covenants exist | Materials, colours, structures - private, not public, but binding on you |
That third one is not a permit and gets forgotten. Covenants are enforceable by your association regardless of what the municipality allows, and approval is worth obtaining in writing before work rather than after.
Working out which apply, in about fifteen minutes
- Establish which municipality your address is actually in. Postal addresses mislead - a Brookfield mailing address does not guarantee you are in the City of Brookfield.
- Call that municipality's building or zoning office and describe the project in plain terms: a patio at grade, a wall of about this height, a built-in feature.
- Ask specifically whether a patio at grade requires a permit, whether it counts toward any impervious surface limit, and what the rear and side setbacks are for it.
- If you are anywhere near a lake, river or stream, ask the county whether the parcel is in the shoreland band - see Waukesha County shoreland rules.
- Check whether your subdivision has covenants and, if so, what the approval process is.
The two questions people forget to ask
Impervious surface. Some municipalities cap the proportion of a lot that may be covered by hard surface. A large patio added to an existing drive, walk and house footprint can approach or exceed that, and it is far better discovered at the design stage.
Wall height thresholds. Retaining walls typically become a permitted structure - sometimes requiring engineering - above a certain height, and the threshold varies. Two walls of moderate height can also be treated as one taller wall depending on their spacing, which catches people trying to design around the limit.
Who normally does this
Establishing all of this for your address is something we handle while the design is still on paper. Plenty of owners would rather make the calls themselves, which is fine. Either way it should happen before drawings, not after, because a layout that has to be redrawn to satisfy a setback is wasted work.