A floodplain address does not make a home a bad buy. It changes three things: what you can build, what your insurance pays, and what the province will help with afterward. Each one is checkable before you remove subjects, and a listing rarely mentions any of them.
This covers Crescent Beach and the Nicomekl lowlands in South Surrey, and Fort Langley, Glen Valley and the river edges of the Township of Langley. The City of Langley and White Rock make their own rules, and I have not covered them here.
What a flood construction level is
Under section 524 of the Local Government Act, a local government can designate a flood plain and set a flood level by bylaw. Where it does, the underside of any floor system, or the top of any pad, used for dwelling, business or storing goods that floodwater can damage must sit above that level.
That number is the flood construction level, or FCL. It governs new construction. It does not lift the house already on the lot. So the question is how far this house sits below the line, and what happens the day you want to rebuild.
Crescent Beach: 3.3 metres, and an average house below it
Crescent Beach has about 350 single family lots, and the City of Surrey says the neighbourhood is entirely within the 200 year floodplain. Ground elevations run from 0 to 3 metres above sea level, inside a dyke system. In 1982 a storm surge heavily damaged frontage properties.
The FCL is 3.30 metres, measured to the top of the slab or the underside of the floor joists. Garages and sheds can go below it. Living space cannot, without a development variance permit from Council.
For decades, that variance was how most houses got built. A 2020 City report counted about 83 since 1992, reducing the level to 0.3 metres above the centre line of the fronting road. Each required an indemnification covenant in favour of the City on title. Surrey's 2017 planning boards put the average house about 0.7 metres below the FCL and about 2.2 metres below the level projected for 2100.
Three things follow.
- Do not price a rebuild on what the neighbour got. The 2020 report recommended phasing out the variance route in favour of new zoning. The City's permit page still describes the variance option. I could not confirm where the zoning work landed, so call Surrey Planning at 604-591-4448 and name the address.
- A taller house is possible but not simple. Surrey's pilot at 2954 O'Hara Lane put all living space above current and future levels, with flood tolerant space at grade. It took a rezoning. Surrey has noted that building to the FCL affects height and floor area ratio, so a lot may yield a different house than you are picturing.
- Budget for the soil and the water. A geotechnical engineer is required for all floodplain construction in Surrey. The City says connecting to its storm sewer is not feasible for most Crescent Beach properties, so drainage has to be solved at the permit stage.
The rest of South Surrey's low ground
Surrey's coastal floodplain covers 20 per cent of the city's land, and its strategy names residential areas in and around Crescent Beach, Mud Bay, Colebrook and Nico-Wynd/Crescent Road. The City's working assumption is sea level rise of 1 metre by 2100 and 2 metres by 2200.
Surrey reports over $76 million in federal funding toward 13 projects valued at over $187 million. The status of each matters more than the total. Dyke upgrades at Colebrook and on the lower Nicomekl and Serpentine are in progress, including the Nicomekl between Elgin Road and the 40 Avenue pump station. The Serpentine and Nicomekl sea dam replacements are still at the planning stage.
The Little Campbell River is different. The City says no dykes have been built on it. Its floodplain is narrow and follows the channel, so on an acreage nearby, the question is where the house sits on the lot.
Fort Langley and the Township: read section 105
Township of Langley Zoning Bylaw 2500 works from a 200 year flood on the Fraser: 5.83 metres at the Surrey border, 6.94 metres where the Jacob Haldi Bridge meets the south bank of the Bedford Channel, and 7.66 metres at the Abbotsford border. Add 0.6 metres of freeboard, adjusted for distance along the river, and you have the FCL. At the bridge, that works out to 7.54 metres.
Smaller waterways are measured from the natural boundary of the water. New floors must be at least 4 metres above Murray Creek and the Nicomekl within its floodplain, 3 metres above the Salmon River and Bertrand Creek, and 2.5 metres above the Campbell River. Buildings are set back 30 metres from the Fraser, Nicomekl, Salmon and Campbell, and 20 metres from Murray Creek.
Read the exemptions twice. A renovation with no addition is exempt from the elevation rule, and so is an addition of less than 25 per cent of the floor area that existed when the bylaw was adopted. A larger addition or a rebuild is not. So a low house can be improved, but only so far. In the rural floodplain zones, the zone itself can rule out building, which I covered in Fort Langley acreage and the ALR.
Ask which side of the dyke a property is on. In May 2023 the Mission gauge reached 5.50 metres and the Township issued a flood advisory for the unprotected flood plain areas of Northwest Langley, Glen Valley and Fort Langley. It was not an evacuation order, and it ended three days later.
Insurance is the check to run first
Insurance Bureau of Canada says flood coverage is optional, sewer backup is a separate option, and groundwater and seepage coverage is typically not standard. That last one matters in Crescent Beach, where the City lists seasonal groundwater fluctuation among the area's drainage problems.
FloodWise says at least one company offered coastal storm surge coverage in the Lower Mainland as of late 2019, against 15 or more for river flooding. The figure is dated, but river and storm surge coverage are different questions. It also says some properties are considered too high risk to insure against overland flood.
Get a written quote on the actual address before subject removal. Ask whether it covers overland flood, storm surge, sewer backup, and groundwater and seepage, with the limit and deductible for each. Then run the premium through the affordability calculator and get pre-approved on the full number.
Do not count on disaster assistance
BC's Disaster Financial Assistance pays only for an event the province has authorized, and its page currently lists none. Surrey was added for the October 2024 atmospheric river. Neither Langley nor Surrey is named for the December 2025 flooding.
When it applies, it pays 80 per cent of eligible damage less $1,000, to a maximum of $400,000. The limits are where buyers get caught:
- The province cannot compensate where insurance was reasonably and readily available, so keep your broker's answer in writing.
- The home has to be your principal residence. Seasonal properties are out, and a rented suite does not count as part of your home.
- Landscaping, land lost to erosion and detached garages are not covered. Belongings in a basement or crawl space are out unless it was an essential living area.
Surrey's 2020 report also said the emergency legislation of the day denied assistance to homeowners who built below the FCL in a designated flood plain, though older homes might qualify. I could not confirm the current wording. The program's line is 1-888-257-4777.
What to check before you remove subjects
- Pull the title and read every covenant. A flood rule exemption can require a section 219 covenant. A title search is $11.06 at the LTSA and a document copy is $17.78.
- If you plan to rebuild or add on, get a land surveyor's floor elevation against the FCL, and confirm the plan with the municipality.
- Get the written insurance quote.
- Ask about water history. The Property Disclosure Statement covers what the seller knows, not what the land does.
- Have your home inspector look hard at the crawl space, the sump and the drainage.
If you are looking at homes in Crescent Beach, Fort Langley, or low ground elsewhere in South Surrey or Langley, send me the address. I will pull the title and tell you which of these questions matter for that lot.
Sources, checked November 6, 2026. City of Surrey: Crescent Beach floodplain permit page, floodplain pages, Coastal Flood Adaptation Strategy and Projects, Corporate Report R060 (2020), Crescent Beach plan boards (November 2017). Township of Langley: Zoning Bylaw 2500, section 105, Freshet 2023 notices. Local Government Act, section 524. Province of BC: Financial Assistance in a Disaster, bulletins of December 13, 2024 and January 14, 2026. Insurance Bureau of Canada. FloodWise. LTSA fee schedule. Not legal or insurance advice.