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Covington Remodeling Guide

City planning guide · Local planning for Covington. Confirm the jurisdiction serving your address.

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Covington is a city of detached family houses, most of them built from the 1960s through the 2000s. Two local rules surprise people who have remodeled elsewhere. Every deck needs a building permit here, however low it sits, and a conifer only 6 inches across already counts as a protected tree. Along Jenkins, Little Soos and Covington creeks, new flood maps are on their way to FEMA as well.

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A 1990s family house in Covington, Washington with a new low backyard deck

What changes a remodel in Covington.

42 percent of Covington homes were built in the 1990s and 2000s

Covington's 7,622 housing units, as the 2020 to 2024 Census survey counts them, include 3,237 built between 1990 and 2009. There is an older layer too: 1,133 homes date from the 1960s, and the median year built is 1994. Almost 87 percent of the city's housing is single-family detached. A house from the 1960s and one from the 2000s need different remodels, so start by checking what the original builder used for wiring, plumbing and framing before you price anything.

Source: Census ACS 2020-2024, Year Structure Built, Covington

King County has sent new flood maps for Covington's creeks to FEMA

The King County Flood Control District and King County prepared updated flood maps for Jenkins, Little Soos and Covington creeks and submitted the studies and draft maps to FEMA for review in summer 2025. The county says flood risks change over time and the new maps better show the hazard to people along the creeks. Public comment closed April 12, 2025, and printed copies of the draft report and maps sit at the Covington library. Flood maps decide whether a federally backed mortgage needs flood insurance, so owners near these creeks should see where their lot falls before planning an addition.

Source: King County, Jenkins, Little Soos and Covington Creeks Flood Studies

In Covington a conifer 6 inches across is a protected tree

Covington requires a permit to remove a significant tree unless an exemption in its code applies, such as an emergency or a hazard tree. A significant tree is a healthy, non-invasive deciduous tree 12 inches or more in diameter at 4.5 feet above grade, any conifer 6 inches or more, or a replacement tree of any size. Every significant tree removed must be replaced: one for one for ordinary trees, two for a landmark tree of 22 inches or more, and three for a heritage tree of 32 inches or more. Lots under an acre use the Minor Tree Removal Permit application, and tree topping is not allowed.

Source: City of Covington, Tree Management

What a remodel costs in Covington in 2026.

$637,300

Median home valueOwner-occupied homes in Covington, Census ACS 2020-2024

Without Covington permit valuation data to work from, we used Census figures for the city. Owner-occupied homes here had a median value of $637,300 over 2020 to 2024, the median household earned $134,502, and owners with a mortgage paid a median $2,668 a month for housing. Nearly 79 percent of occupied homes are lived in by their owners, and the median home has 6.6 rooms.

For a deck, Seattle's 2025 Cost vs Value figures show a 16 by 20 foot pressure-treated wood deck with stairs, a built-in bench and a railing costing $20,294 on average, with 83.1 percent recovered at resale. Carpenters build it, and they are paid well here: the median carpenter in the Seattle-Tacoma-Bellevue metro earned $76,410 a year in May 2025, compared with $60,580 for carpenters nationally.

The numbers behind this section
Median home value$637,300Owner-occupied homes in Covington, Census ACS 2020-2024 (Census ACS 2020-2024, Median Value, Covington)
Median household income$134,502All Covington households, Census ACS 2020-2024 (Census ACS 2020-2024, Median Household Income, Covington)
Median monthly owner costs with a mortgage$2,668Covington owners with a mortgage, Census ACS 2020-2024 (Census ACS 2020-2024, Monthly Owner Costs, Covington)
Single-family detached homes86.8%Share of Covington housing units that are one-unit detached houses, Census ACS 2020-2024 (Census ACS 2020-2024, Units in Structure, Covington)
Wood deck addition, Seattle$20,294Pressure-treated 16 by 20 foot deck, Seattle results in Cost vs Value 2025; 83.1 percent recovered on sale (Cost vs Value 2025, Seattle)
Median carpenter pay$76,410 a yearYearly median for carpenters around Seattle, Tacoma and Bellevue in May 2025; U.S. carpenters $60,580 (BLS OEWS May 2025, Seattle-Tacoma-Bellevue carpenters, annual median)

Who issues permits in Covington.

Inside city limits, City of Covington Permit Services in the Community Development department issues building, mechanical and plumbing permits. Many permit types, including simple residential ePermits, are filed through the city's Citizens Connect portal and paid by MasterCard or Visa. Covington does not issue electrical permits; the Washington State Department of Labor and Industries does.

  • Every deck and similar platform needs a building permit in Covington, with no exemption for low decks.
  • A one-story detached shed up to 200 square feet on a residential lot needs no building permit, but it must still meet zoning setbacks and impervious surface limits.
  • A reroof needs no permit when the new roofing matches the old in material and weight and no sheathing is replaced. Switching materials, such as cedar shake to composition, or replacing sheathing requires one, issued over the counter.
  • Simple residential ePermits for a gas water heater, furnace, air conditioner or heat pump, or for an electric water heater and plumbing fixtures, are filed in Citizens Connect and emailed within three business days once approved.
  • Owners may do their own work, including electrical, as long as it is not done to sell the improved property, and must complete the city's Contractor License Requirements form.
  • Construction may run from 7 a.m. to 8 p.m. on weekdays and from 9 a.m. to 6 p.m. on weekends and federal holidays.
  • The permit counter is open Monday through Thursday, 8 a.m. to 4 p.m., and an appointment is recommended.

What Covington homeowners plan most.

Heating and cooling

A furnace, air conditioner or heat pump swap in Covington is a simple residential ePermit, filed online and emailed within three business days once approved.

Deck building

Covington requires a permit for every deck, whatever its height, with no low-deck exemption. The deck guide we link is Seattle's; the permit here comes from Covington Permit Services.

Read our Seattle deck building guide

Roofing

A like-for-like reroof with no new sheathing needs no permit in Covington, but going from cedar shake to composition does.

Kitchen remodel

Covington has 1,133 homes from the 1960s, and in those a kitchen remodel means opening walls around wiring and plumbing more than 55 years old.

Tree removal and yard work

Clearing space for an addition or deck can mean removing conifers of 6 inches or more, which needs a Covington tree permit and replanting.

Before you start.

How much does it cost to build a deck in Covington?

A 16 by 20 foot pressure-treated deck with stairs, bench and railing averaged $20,294 in the Seattle numbers from Cost vs Value 2025, and 83.1 percent of that came back at resale. In Covington, add the building permit, which every deck needs here regardless of height, and any tree permit if conifers of 6 inches or more have to go.

Do I need a permit to build a deck in Covington?

Yes. Covington's permit FAQ says decks and similar platforms are required to have building permits, with no exemption for low or freestanding decks. A one-story shed up to 200 square feet is different: it needs no building permit on a residential lot, as long as it meets zoning setbacks and impervious surface standards.

Do I need a permit to remove a tree in Covington?

Often, yes. Covington protects healthy deciduous trees 12 inches or more across and conifers 6 inches or more, measured at 4.5 feet above grade. Removing one takes a tree removal permit unless an exemption such as an emergency or hazard tree applies, and each tree removed must be replaced, up to three for one for heritage trees.

Do I need a permit to reroof my house in Covington?

Not if you replace the roofing with the same material at the same weight and no sheathing is replaced. Changing materials, such as going from cedar shake to composition shingles, or replacing any sheathing requires a reroof permit. It is issued over the counter, and the city inspects the sheathing and the finished roof.

Is Covington getting new flood maps?

Yes, for Jenkins, Little Soos and Covington creeks. King County and its Flood Control District prepared updated flood studies and draft maps and submitted them to FEMA for review in summer 2025. Printed copies are at the Covington library. Check where your lot falls before an addition, since flood maps affect insurance requirements for federally backed mortgages.

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