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What it costs to run a house in the Outer Hebrides

Buyers ask what a house costs to buy. Fewer ask what it costs to keep warm, connected and reachable on an island with no gas main, where every journey off it is a crossing.

In brief

Council tax and water, 2026/27

The Comhairle sets the council tax and collects Scottish Water's charges with it. Below are its published 2026/27 charges as they stood on 15 September 2026. Bands are set on 1991 values, so a house worth far more today can sit in Band C.

Band1991 valueCouncil taxWater and wastewaterTotal
Aup to £27,000£1,003.67£434.88£1,438.55
B£27,001 to £35,000£1,170.94£507.36£1,678.30
C£35,001 to £45,000£1,338.22£579.84£1,918.06
D£45,001 to £58,000£1,505.50£652.32£2,157.82
E£58,001 to £80,000£1,978.06£797.28£2,775.34
F£80,001 to £106,000£2,446.44£942.24£3,388.68
G£106,001 to £212,000£2,948.27£1,087.20£4,035.47
Hover £212,000£3,688.48£1,304.64£4,993.12

The Band D council tax rose 8.5% on the year. Two multipliers matter to a buyer whose main home is elsewhere. A second home, meaning a furnished property that is nobody's main residence and is occupied at least 25 days a year, has been charged 200% council tax since 1 April 2024, and the Comhairle budgeted in February 2026 to raise that levy to 225% for 2026/27. A long-term empty property is charged double under the empty homes policy, which council tax on a second home covers. The council tax team will confirm the rate for the current year. Your only residence pays the single charge, and a single adult gets the 25% discount.

A house not on the public sewer pays no wastewater charge and runs a septic tank instead, which has to be emptied. Ask the selling agent whether the water is public or private and the drainage a tank or a sewer.

Heating a house with no gas main

Almost no island house is on a gas main. Nationally, the Scottish Government's islands data overview says 55% of rural dwellings in Scotland are off the gas grid and rely on more expensive fuel such as electricity and oil. A survey by the islands' housing agency, reported in 2024, found the largest group heating with oil and about a third with electricity, in a stock largely detached and largely pre-1975.

The consequence is in the fuel poverty figures. The Scottish House Condition Survey's tables for 2022 to 2024 put fuel poverty in Na h-Eileanan Siar at 40% of households against 31% for Scotland, with 13% of dwellings in the two lowest energy bands, and only Orkney higher. For a buyer the useful reading is the Energy Report inside the Home Report, which gives the EPC band and an estimate of heating, lighting and hot water costs; on an island house it deserves as much attention as the valuation.

Ofgem's price cap for 1 October to 31 December 2026 is £1,723 a year for a typical household that uses gas and electricity and pays by direct debit, and Ofgem's note says gas is rising 8% while households without gas see an increase of less than 1%. Island homes are in the second group, so the headline overstates the change and understates the level: an all-electric house uses far more units than the typical home the cap describes, and heating oil is outside the cap altogether.

Unit rates and standing charges vary by region too, so check the north of Scotland figure for the current quarter.

Public money for making it warmer

The Home Energy Scotland Grant and Loan gives an owner-occupier up to £7,500 of grant for a heat pump, with a further £7,500 as an interest-free loan, and up to 75% of the cost of insulation capped at £7,500. Island homes get an uplift of £1,500 on both, taking the combined maximum to £18,000. You need not be on benefits, but must own the house and live in it. Warmer Homes Scotland is the other scheme, on circumstance-based criteria.

Broadband

The Scottish Government's Reaching 100% programme is the public contract to bring 30Mbps or better to the hardest premises in the country, and a response reported in December 2022 said some Highlands and Islands exchange areas would not be reached until March 2028. Since then, Openreach announced on 2 February 2026 that more than 2,300 properties across Na h-Eileanan Siar could order full fibre, with more than ten thousand to follow under that programme and Project Gigabit.

For a particular house the only reliable check is a provider's availability checker by address; without full fibre the options are copper, mobile broadband where there is signal, and satellite.

Getting on and off

Leaving the island costs a ferry or a flight every time. CalMac's Ullapool to Stornoway fares from 27 March 2026 are £12.75 for an adult single and £69.05 for a car single, and the car fare does not include the driver, so one adult with a car, there and back, is £163.60. The southern isles have their own routes: getting here for a viewing covers the crossings and the flights.

Mainland retailers often price or exclude deliveries to HS postcodes, so check before ordering.

An illustration, not a quote

A Band D house that is its owner's only home, on public water and sewer, heated by electricity:

Line2026/27Source
Council tax, water and wastewater£2,157.82The Comhairle's band table
Energy, at the typical dual-fuel figure£1,723.00Ofgem's cap, October to December 2026
Two return crossings with a car£327.20CalMac fares from 27 March 2026

Those three lines come to £4,208, and the energy one is a national average an all-electric or oil-heated island house will usually exceed. Broadband, insurance and whatever fuel the house burns sit on top. Treat the table as a floor and the Energy Report as the number for the house itself. What is advertised today is on the full list, the long lets on the rentals page.

Sources

Last checked 15 September 2026. Every source named above was read on that date, and rules, rates and timetables all move, so check the current position before you rely on a figure here. Corrections to hello@outerhebridesproperty.co.uk.

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