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The conversion borough, and why that decides almost every job here

Census 2021 counted 105,092 households in Haringey. 22.8% of them are part of a converted or shared house including bedsits, the fourth highest share of the thirty-three London local authorities and more than double the London figure of 11.1%. Another 35.4% are in a purpose-built block and 25.6% are terraced. Only 9.4% are semi-detached, twenty-second in London, and 3.9% are detached.

That single number explains the shape of our call log here. A conversion is not a house and it is not a purpose-built flat. It is a house that was cut up, usually decades ago, often without drawings, and the plumbing was fitted around whatever was already in the walls. The cold feed frequently serves more than one flat. The soil stack is shared and the branch connections were added at whatever height was convenient. The stopcock that isolates your flat may be in the communal hall, in the basement, or in the flat below. In an emergency the first job is finding the right isolation point, and in a conversion that is a search rather than a reflex.

The bedroom mix reinforces it. 26.2% of Haringey homes have one bedroom and only 23.6% have three, twenty-second in London. 30.7% of households contain one person. So the typical Haringey property is a small unit inside a building that used to be one house, sharing services with people the occupant may never have met.

Tenure decides who can authorise the repair. 35.6% of Haringey households rent privately, ninth highest in London, and only 37.2% own, twenty-second of thirty-three. A further 25.2% rent socially. The person standing next to the leak at two in the morning is very often a tenant who has never seen the stopcock, does not have the freeholder's number and cannot commit to spend. We are set up for that: isolate first, stabilise the property, then quote the repair to whoever is actually paying.

The east and the west of this borough are different countries

Haringey does not treat its internal split as a delicate subject. Its own Local Plan states that 'Deprivation, like many other characteristics, follows clear geographical lines - broadly, the east and the west of the borough', and that 'Owner occupation is greater in the west of the borough, with concentrations of social rented housing in the east'. Median hourly pay runs £20.71 in the west against £16.77 in the east. The Universal Credit claim rate ranges from 8.7% in Muswell Hill to 50.1% in Northumberland Park.

For a repair firm that is not a social observation, it is an operational one. In the west, in Muswell Hill, Highgate, Crouch End and Fortis Green, the work skews to owner-occupied Victorian and Edwardian houses and the better class of conversion: leak tracing in period fabric, boiler and cylinder work, rainwater goods, and repairs where the person on the phone owns the whole building and can make a decision.

In the east, in Tottenham, Northumberland Park, Bruce Grove and Seven Sisters, the work skews to licensed private lettings, large estates and social housing. More of the jobs involve a managing agent or a landlord who is not on site, more involve shared services, and far more involve producing paperwork afterwards that somebody has to file.

Haringey manages 20,455 dwellings of its own, comprising 16,037 tenanted and 4,418 leasehold. Census 2021 puts 2.1% of borough households on a district or communal heat network only, below the London figure of 3.4%, so communal heating is a minority here but a real one, and it clusters on the estates rather than being spread evenly.

Licensed borough-wide for HMOs, and in fourteen wards for everything else

Haringey operates two licensing schemes at once and they cover different things, which trips landlords up constantly.

Additional HMO licensing is borough-wide. The public notice states that 'The designation shall come into force on 17th June 2024 and shall cease to have effect on 16th June 2029' and that it 'applies to the whole area of the district of the London Borough of Haringey'. The council's guidance is explicit that Section 257 buildings are caught too: 'This means any HMO, including Section 257 HMOs, will require licensing under the additional HMO licensing scheme'. So a converted building of self-contained flats needs a licence here, which is the opposite of the position in Croydon or Wandsworth.

Selective licensing is not borough-wide. It came into force on 17 November 2022 and 'shall cease to have effect on 17 November 2027', and it covers fourteen named wards: Bounds Green, Bruce Castle, Harringay, Hermitage and Gardens, Noel Park, Northumberland Park, Seven Sisters, South Tottenham, St Ann's, Tottenham Central, Tottenham Hale, West Green, White Hart Lane and Woodside. Seven wards are outside it: Muswell Hill, Fortis Green, Alexandra Park, Crouch End, Hornsey, Highgate and Stroud Green.

The point people miss is that being outside the selective map does not mean being outside licensing. The additional HMO scheme is borough-wide, so a shared house in Muswell Hill or Crouch End still needs a licence even though a single-household letting on the same street does not.

Haringey publishes a selective fee of £705.84 for the five-year duration of the scheme, split into Part A of £411.57 and Part B of £294.27, with £50 discounts for accredited landlords and for an EPC of C or above. The full HMO licensing fee is published at £1,360.00, made up of Part A of £618 and Part B of £742. On penalties, the council states that 'The council can also issue a civil penalty up to a maximum of £30,000'. That is Haringey's own published figure. The statutory ceiling under section 249A(4) of the Housing Act 2004 as currently in force is £40,000, having been raised from £30,000 on 1 May 2026. We give you both, attributed, rather than normalising them.

What this means for us in practice is that a repair in a licensed property is also a documentation job. Where we do gas work we leave the Gas Safe certificate and a dated record of the fault, the fix and anything left outstanding, in a form the licensing team will accept without a follow-up email.

Twenty-nine conservation areas, 471 listed buildings and a local list of 1,177

Haringey states that it has twenty-nine conservation areas 'designated over 41 years', that 'There are currently 471 statutory listed buildings in Haringey', and that 'There are currently 1,177 buildings and structures included on Haringey's local list'. That local list is unusually long and it catches a great deal of ordinary Victorian and Edwardian housing, particularly in the west of the borough.

For emergency work the rule is simple and it does not change: stopping water and making a property safe goes ahead. What needs care is the permanent reinstatement. A soil or vent pipe in a new position on a visible elevation, a boiler flue through a protected facade, an external condensate run, replacement rainwater goods in a material that does not match, or a new external tap through decorative brickwork are all decisions rather than defaults in a conservation area.

We handle it by separating the two stages explicitly. The out-of-hours visit makes the building watertight using reversible methods wherever we can. The permanent specification is written up afterwards, with the consent question raised before you commit rather than after a planning enforcement letter lands. In a borough with 471 statutory listings and a local list nearly three times that size, this comes up more than most people expect.

The conversion stock complicates it further. Converted Victorian houses in Crouch End, Harringay and Hornsey frequently carry original or early pipework buried in walls, waste runs re-routed during the conversion and shared stacks that were never properly documented. Opening the wrong wall in a period property is the expensive mistake, so we lead with acoustic and thermal tracing and make the first hole the right one.