Builder in Luton, Bedfordshire

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5.0 · MCIOB and AssocRICS

Luton is a semi-detached town, and that single fact shapes most of the work we do here. The 2021 Census puts the borough at 40.3 per cent semi-detached, 22.0 per cent terraced and only 12.9 per cent detached, against an England average of 31.5 per cent detached. A builder who spends his week on detached houses in the shires is not doing the same job as one who spends it squeezing a rear extension between two party walls on Montrose Avenue.

The age profile is just as lopsided. The Valuation Office build-period data puts the two biggest cohorts in the borough at 1955 to 1964 and 1930 to 1939, and those two eras dominate whole neighbourhoods. Lewsey North is 52 per cent built in that 1955 to 1964 window. Montrose Avenue is 45 per cent interwar. Bury Park and Dallow Road are over 40 per cent built between 1900 and 1918. Marsh Farm is 77 per cent built between 1965 and 1982. Tell us the street and we can usually tell you what is holding your roof up before we get there.

There is also a reason so many Luton families extend rather than move. The Census recorded 12.2 per cent of Luton households as overcrowded, against 4.3 per cent for England and 2.4 per cent in Central Bedfordshire. That is the highest concentration in the county by a distance, and it is why the loft and the back of the house are where most of our work happens.

What being a Luton builder actually means

It means knowing that Luton Borough Council is its own planning authority and has been a unitary since 1997, so a Luton job is decided under the Luton Local Plan 2011 to 2031 rather than by Central Bedfordshire. It means knowing there is no Green Belt inside the borough at all and no AONB either, both of which sit in the authorities around us. And it means knowing that a Luton postcode does not mean Luton council: LU1 runs out to Caddington and Slip End, which are Central Bedfordshire, and LU2 reaches Lilley and Cockernhoe, which are North Hertfordshire.

Bes Cuni MCIOB, Chartered Member of the CIOB
AssocRICS, Associate of RICS
NVQ Level 7 in construction management
Free site visits and written, itemised quotes
Company 12091124, checkable on Companies House

We also cover nearby

Bury Park
High Town
Round Green
Stopsley
Leagrave
Limbury
Sundon Park
Farley Hill
Stockwood Park
Lewsey
Challney
Bramingham
Warden Hill
Barnfield
Crawley Green
Putteridge
Wigmore
Marsh Farm

What we do here

Everything below we do across LU1 to LU4. Extensions and loft conversions are the bulk of it, because in a town of interwar and post-war semis those are the two ways of getting another room without leaving the street.

House extensionsSingle storey, double storey and wrap-around, with the structural design done properly.
Loft conversionsDormer, hip-to-gable and rooflight, with the fire and staircase work included.
RoofingSlate and tile re-roofs, flat roofs, lead work and chimney repairs.
BrickworkNew walls, structural openings, repointing and brick matching.
BricklayerSub-contract bricklaying for builders, self-builders and architects.
Home renovationsWhole house refurbishments run by one contractor.
Fire and flood refurbishmentInsurance reinstatement, working with your loss adjuster.

Questions from Luton homeowners

Do I need planning permission to extend my house in Luton?

Many single storey rear extensions in Luton are permitted development, and none of Luton Borough Council's six Article 4 directions removes householder permitted development rights. All three of the recent ones, covering the town centre from 6 October 2023 and Butterfield Green and Capability Green from 1 August 2022, remove commercial to residential conversion rights under Class MA, which is a different thing entirely. The exceptions to watch are the borough's five conservation areas, of which only Rothesay and Luton South are largely residential.

What is the ground like under Luton, and how deep do foundations go?

Luton sits on chalk, in three different formations depending on where you are. The Lea corridor, High Town and Round Green sit on Holywell Nodular and New Pit Chalk. Farley Hill, Stockwood Park and Stopsley sit on Lewes Nodular and Seaford Chalk. Limbury and north Leagrave sit on Zig Zag Chalk. On chalk you are usually not digging to the depths a London clay town needs for shrink and swell, and the NHBC minimum against frost is 450mm to the underside of the foundation. What does have to be checked is clay-with-flints capping, which is a genuine cohesive clay and does move, and which sits over Farley Hill, Stockwood Park, north and east of High Town and the south of New Town.

Are sinkholes really a risk in Luton?

Chalk is soluble, and the NHBC treats dissolution as a real hazard because it produces voids, variable ground and excessive settlement. There is a very local piece of evidence for it: the Bedfordshire Geology Group records that the Luton brickearth, the raw material for Luton Grey bricks, is associated with hollows created by water dissolving the chalk. So the ground that made the town's bricks is the same ground that argues for taking a proper site investigation seriously on anything structural. It is not a reason to panic, it is a reason to dig trial holes rather than assume.

Can you match the brick on a Victorian house in Luton?

Usually, and it is worth doing properly, because the local vernacular is distinctive. Luton Grey is a plum to purple brick with a white speckle through it, made from flinty brickearth dug at Kensworth, Caddington and Stopsley, and it was a significant local industry from the mid-1800s to the 1930s. The High Town terraces are traditionally built in it. A modern red multi against a Luton Grey elevation looks wrong from the pavement, and the answer is generally a reclaimed brick rather than a new one.

Which Luton houses are easiest to extend?

The Victorian and Edwardian terraces around High Town are better candidates than people expect, because those streets were laid out from 1841 by Frederick Burr with very substantial back gardens, so there is real depth to build into. The interwar semis in Montrose Avenue, Challney and Kingsway usually take a straightforward single storey rear or a side return. The 1930s and 1950s hipped roofs across Sundon Park, Lewsey and Warden Hill are the classic hip-to-gable loft candidates.

Does the airport affect building work in Luton?

For a domestic extension, no. It matters if you need a crane: London Luton Airport requires a crane permit for anything above 10 metres within 6 kilometres of the airport, and the wider safeguarding zone runs to 15 kilometres, which covers the whole borough. On a normal house job it never comes up, and where it might we deal with it before the plant is booked.

Do you work on the post-war steel-framed houses?

The BISF steel-framed houses at Round Green, known locally as Tin Town, are a specific construction type and they need to be treated as one rather than as a normal masonry house. Most have been clad since. If yours is one, say so when you call, because the survey is different and so is the structural approach.