Roof repair
Roof Repair in South Lyon, Michigan
A South Lyon mailing address tells you almost nothing about who governs your roof. Only about eight percent of ZIP 48178 is actually inside the city — the rest spreads across four townships in three different counties, and each one answers the permit question differently.
A South Lyon address can sit in any of five municipalities across three counties — and all three permit rules are different.
Do I need a permit to re-roof in South Lyon?
There are three different answers depending on which line your house sits on. Inside the City of South Lyon, yes — and the fee is calculated from the value of the job rather than charged flat. In Lyon Township, no: the township stopped requiring roofing permits in May 2025, unless the work involves framing or structural repair. In Green Oak Township, only if you are tearing off — a layover over the existing shingles needs no permit there. Same ZIP code, three answers.
7.8%
Share of ZIP 48178 that is actually in the city
81 mph
Gust recorded at South Lyon, August 24, 2023
3
Different permit rules inside one mailing address
One ZIP code, three counties, five municipalities
This is the thing to understand before anyone quotes you a permit, and it is unusual even by Michigan standards.
ZIP 48178 covers about 47.5 square miles. The City of South Lyon accounts for 3.7 of them — 7.8 percent. The largest single piece is Green Oak Township, at 29 percent, and Green Oak is in Livingston County, not Oakland. Lyon Township holds another 29 percent, Northfield Township 20 percent and Salem Township 14 percent, both of those in Washtenaw County. Roughly two-thirds of the land in the South Lyon ZIP is outside Oakland County entirely.
The population follows the same shape. The ZIP holds about 36,900 people; the city holds about 11,700 of them.
Both local governments say this out loud. The City of South Lyon's building department tells applicants to call and verify the job address is inside city limits, because the South Lyon mailing address covers the city and four surrounding townships. Lyon Township is blunter still, noting that it is served by five post offices and that residents' mailing addresses do not reflect where they are actually located.
Why it matters more here than anywhere else we work
Elsewhere in our area, getting the jurisdiction wrong changes a fee. Here it changes whether a permit exists at all. A contractor who states one rule for “South Lyon” is wrong about two-thirds of the addresses they say it to.
We confirm which municipality your parcel is in before we write the estimate, and we pull whatever is actually required.
Three jurisdictions, three completely different answers
Here is the whole permit picture for a South Lyon address in one place. Find your municipality first, then read across — the requirement changes, not just the price.
| Jurisdiction | County | Permit required? | Fee |
|---|---|---|---|
| City of South Lyon | Oakland | Yes, for any re-roof | A value-based fee, calculated per increment of construction value on the ICC valuation chart |
| Lyon Township | Oakland | No, since May 2025 | None, unless framing work is involved |
| Green Oak Township | Livingston | Only for a tear-off | A flat fee is published — confirm, fees were due to change |
Northfield and Salem Townships in Washtenaw County also carry South Lyon addresses and run their own processes. We check your parcel rather than your postmark.
City of South Lyon — contracted out, and priced by job value
The city does not run its building department in-house. It is contracted to SAFEbuilt, and the whole department works from 335 S. Warren Street on 248-437-5255. There is no flat re-roof fee: it is calculated per increment of construction value, using the ICC valuation chart, with one inspection included.
A few things that catch people out. The permit counter is open only 9 a.m. to 2 p.m., Monday through Friday — a five-hour window. Inspections run Monday through Thursday only. There is no online submission, so applications go in on paper. Card payments carry a 3 percent surcharge. Contractors must register with the city, which charges a flat fee for the building registration. And starting work without a permit doubles the fee.
Lyon Township — no roofing permit at all since May 2025
This is the finding that surprises everyone, and it comes straight from the township. As of May 8, 2025, the Lyon Township Building Department no longer requires permits for roofing.
Three things worth being clear about, because “no permit” gets misread. First, the exemption does not cover framing or structural work — and framing repair is exactly what turns up once the old covering is off, so a job can start exempt and end up needing a permit. Second, no permit does not mean no code: the township is explicit that roofing work must still meet applicable code requirements and manufacturer specifications. Third, the township still offers permits and inspections to anyone who wants them, by site visit or photo evidence.
We are happy to pull one voluntarily if you would rather have the third-party inspection on record. Some homeowners want it for resale; most do not. Either way you should know the option exists.
The township building department is at 58000 Grand River Avenue in New Hudson — note that is a New Hudson address in 48165, not South Lyon — on 248-437-2252, open Monday through Thursday and closed Fridays.
Green Oak Township — its own department, and the tear-off line
Green Oak is one of only two places in Livingston County that the county building department does not serve. The county says so plainly on its own site: Green Oak Township and the City of Howell fall outside its building and trade permitting. Green Oak issues its own.
And Green Oak draws the tear-off line explicitly. Its published guidance: a building permit is needed for tear off and re-shingle, and if re-shingling over existing shingles, no permit is necessary.
The township publishes a flat tear-off fee, and re-roofs are exempt from the site-inspection and plan-review fee that other permits carry. Confirm the current figure before you budget — the department posted that permit and inspection fees were changing, and the schedule we can see has not been visibly replaced. The number to call is 810-231-1333, extension 111.
The office is at 10001 Silver Lake Road with a Brighton mailing address, which is its own small irony in a township full of South Lyon addresses. Hours are 7:30 to 4:00, Monday through Thursday. Payment is cash or check only, inspections have to be booked by 3:30 the previous business day, and work done without a permit doubles the fee.
One honest note about that Green Oak split. A permit costs money and a layover does not, which is a real financial nudge toward putting a second layer on. We will still recommend a tear-off in most cases, and not because of the permit — it is the only way anyone sees the deck, it is the only way you get ice and water protection at the eaves, and layering over a failing roof buries the problem rather than fixing it. We will tell you when a layover is genuinely reasonable, and we will tell you when it is not.
Permit rules, fees and office hours here were accurate when this page was written and change more often than most. We confirm the current requirements with the relevant municipality on every job.
The August 2023 storm hit South Lyon harder than anywhere else in the region
Just after midnight on August 24, 2023, a squall line came through and NOAA logged an estimated 81 mph gust at South Lyon. The property damage recorded against that one report was the largest thunderstorm wind damage figure in either Oakland or Livingston County across the entire 2020 to 2026 record.
The National Weather Service narrative is worth reading in full, because it is unusually specific: widespread trees blown down, the South Lyon DPW main building severely damaged with its roof torn off, all its overhead doors blown in and walls bowing out, a police vehicle severely damaged on a flooded road during a rescue, homes with major damage or destroyed outright, and the City of South Lyon offices without power for two days.
The same evening pushed 70 mph across Green Oak Township and 68 mph at Brighton. Regionally, gusts of 60 to 80 mph took out power for close to 500,000 customers across southern lower Michigan.
If your roof went through that and nobody has been up on it since, it is worth an hour of somebody's time. Wind at that speed routinely breaks the bond between shingle courses without taking a single shingle off the roof.
| Date | Location | Magnitude | What was reported |
|---|---|---|---|
| May 19, 2026 | New Hudson | 64 mph | Snapped trees at Kensington Metropark |
| July 12, 2025 | New Hudson | 64 mph | Large trees uprooted and snapped |
| July 12, 2025 | South Lyon | 58 mph | Large tree limb down on the road |
| June 24, 2025 | Wixom | 1.00 inch hail | One of only three hail reports in the area |
| August 27, 2024 | New Hudson | 64 mph | Large trees down at Kensington Park |
| June 17, 2024 | Green Oak | 63 mph | Trees and power lines down |
| August 24, 2023 | South Lyon | 81 mph | Widespread property damage logged — DPW roof torn off, homes destroyed |
| August 24, 2023 | Green Oak | 70 mph | Trees down across the township |
| June 16, 2022 | South Lyon | 63 mph | Multiple trees down at Walnut Creek Country Club |
| September 14, 2021 | New Hudson | 0.88 inch hail | Below the size that damages shingles |
Source: NOAA National Centers for Environmental Information, Storm Events Database.
This is a wind market, not a hail market
Across Oakland and Livingston Counties between 2020 and 2026, NOAA logged 182 thunderstorm wind events and 26 hail events — wind outnumbers hail seven to one. More to the point, not one of those 26 hail reports reached 1.75 inches, and the largest anywhere in either county was 1.50 inches at Pinckney. In the immediate South Lyon area there have been three hail reports in six and a half years, the biggest of them an inch.
We say that plainly because a lot of roofing marketing in this state leads with hail, and here that reads as out-of-town copy to anyone who actually lives here.
The costliest event of all was ice
On February 22, 2023 an ice storm put a quarter to half an inch of accretion across the region. NOAA logged more property damage in Oakland and Livingston Counties combined than any wind event in the period. DTE reported nearly 3,000 downed wires and over 500,000 customers without power, and the Weather Service noted that for many metro Detroit communities an ice storm with that footprint had not been seen since April 2003.
Every damage report in this market, in every season, comes back to trees. Read the storm table above and it is limbs and trunks the whole way down. That is the local mechanism — impact, abrasion from overhanging branches, debris packing into valleys and gutters, and moss on shaded north slopes.
Three different housing stocks, and one of them is about to come due
The usual assumption about a town like this is that the city is old and the townships are new. Half right.
The City of South Lyon and Green Oak Township have exactly the same median year built — 1991 — and nearly the same share of homes built before 1980, 36 percent against 35. Only Lyon Township is genuinely young, at a median of 2003.
What sets the city apart is its shape rather than its age. It has the deepest pre-war stock of the three, and it also had the single largest building decade of any of them — a third of all city housing went up in the 1990s. An old core with a big 1990s ring around it, rather than uniformly old.
| City of South Lyon | Lyon Township | Green Oak Township | |
|---|---|---|---|
| Total housing units | 5,155 | 8,797 | 8,043 |
| Median year built | 1991 | 2003 | 1991 |
| Built 2010 or later | 4.9% | 39.0% | 12.9% |
| Built before 1980 | 36.2% | 19.7% | 35.1% |
| Median home value | Lowest of the three | Highest of the three | Middle of the three |
| Owner-occupied | 81.2% | 88.6% | 91.5% |
| Single-family detached | 57.5% | 80.5% | 82.4% |
Source: U.S. Census Bureau, American Community Survey 2020–2024 five-year estimates. Treat each figure as an approximation with a real range around it; what matters here is the gap between the three columns, not any single number.
Lyon Township's build wave is arriving
Nearly four in ten Lyon Township homes were built in 2010 or later — 2,875 of them in the 2010s alone, and the township led all of Southeast Michigan in single-family permits in 2023.
The 2010 to 2014 cohort is now twelve to sixteen years old. That is not replacement age, but it is exactly when builder-grade architectural shingles start dropping granules and when the parts nobody thinks about begin to fail — pipe boots, step flashing, ridge vent, sealant at the penetrations. A pipe boot replaced on time is a leak that never happens.
Because Lyon Township no longer requires a roofing permit, that work is unusually frictionless here. We would rather do it than replace your ceiling in four years.
The lake neighborhoods in Green Oak are a different job entirely
Green Oak's master plan describes the Briggs, Fonda and Island Lake neighborhoods as having been developed as summer resort and second-home communities, with road rights-of-way that are very narrow and winding, and notes that as those neighborhoods converted to year-round residences their utility infrastructure became insufficient.
For a roofer that means two things. The buildings started life as seasonal structures and have been added to for decades. And the streets will not take a full-size dump trailer, so staging and haul-off have to be planned rather than improvised. We look at the access before we quote, not on the morning of.
It also means well and septic. Green Oak's own permit process routes homeowners to Livingston County for well and septic waivers, and its master plan deals repeatedly with failing drain fields and septic-unsuitable soils. A loaded trailer parked over a drain field is a five-figure mistake, so we ask where yours is before anything moves.
Where the subdivisions actually are
Lyon Township publishes an official index of its neighborhoods — roughly 105 of them, with names, types and cross streets. That is unusual and it is the best subdivision record in this market. The largest clusters are the Tanglewood developments, eight named phases with golf-course street names, and the Mill River group of six along Milford Road.
About half of the township's developments are planned developments rather than plain subdivisions, which is the type most likely to carry an architectural review board with rules about shingle color and profile. Green Oak is explicit that its permit and your association's approval are separate tracks, and that the township will not enforce your HOA's requirements. So we check the association's rules before ordering material rather than after.
Green Oak and the City of South Lyon do not publish subdivision lists, and we are not going to invent names for them. In Green Oak the landmark everyone knows is Hidden Lake — gated, built around a 110-acre all-sports lake, with South Lyon mailing addresses and Brighton schools, sitting entirely in Livingston County. It is the single best illustration of everything on this page.
One thing you do not have to worry about
There is no historic district in South Lyon, in Lyon Township or in New Hudson. Not one National Register listing among them — not even the Witch's Hat Depot. The city has a Historical Commission and a genuinely lovely historic village at McHattie Park, but no historic district with design review over your house. If somebody tells you a downtown re-roof needs historic approval here, they are thinking of Milford.
Permit offices keep short hours here
Worth knowing whichever side of the line you are on, because between the three of them there is not much overlap.
- City of South Lyon: permit counter 9 a.m. to 2 p.m. only, inspections Monday through Thursday, paper applications, 3% card surcharge
- Lyon Township: Monday through Thursday 7:30 to 5:30, closed Fridays — no roofing permit needed, but allow about three weeks if you ask for the voluntary one
- Green Oak Township: Monday through Thursday 7:30 to 4:00, closed Fridays, cash or check only
- Green Oak inspections must be booked by 3:30 p.m. the previous business day
- Working without a permit doubles the fee in both the city and Green Oak
- Contractors must register with the City of South Lyon and with Green Oak Township separately
We handle all of it. It is the least interesting part of a roof and the easiest part to get wrong.
Where we work around South Lyon
We run out of Howell, about twenty minutes northwest up I-96 and US-23. South Lyon sits at the corner where Livingston, Oakland and Washtenaw meet, so a normal week here takes us through the city grid, the Lyon Township subdivisions along Ten Mile and Milford Road, New Hudson, and the lake neighborhoods on the Green Oak side. South Lyon Community Schools runs two high schools — the Lions and the Cougars — across roughly the same footprint we cover.
- Downtown South Lyon
- Pontiac Trail
- Ten Mile Road
- McHattie Park
- Witch's Hat Depot
- Huron Valley Rail Trail
- New Hudson
- Lyon Township
- Tanglewood
- Mill River
- Stoneleigh
- Crystal Creek
- Rathmor Park
- Orchards of Lyon
- Kensington Place
- Country Estates
- Green Oak Township
- Hidden Lake
- Silver Lake
- Briggs Lake
- Fonda Lake
- Island Lake
- Winans Lake
- Rushton
- Whitmore Lake
- Island Lake Recreation Area
- Kensington Metropark
- Lyon Oaks
Frequently asked questions
Which office issues my roof permit if I have a South Lyon address?
Lyon Township really does not require a roofing permit?
Green Oak charges for a tear-off but not a layover. Should I just do a layover?
Is South Lyon a hail damage area?
My roof came through the 2023 storm fine. Did it?
We are in Hidden Lake. Are we in South Lyon?
My house was built in 2013. Is it too new to need anything?
Do you need HOA approval before you start?
Nearby towns we serve
Related services
More on this from our roofing blog
- 10 Signs Your Roof Needs Repair
- 7 Reasons Why Your Roof Is Leaking
- How to Prevent Ice Dams on Your Roof
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