House Extensions in Islington, N1
Rear, side-return, wraparound and double-storey extensions for houses in Islington, designed, approved and built by one team.
Covered under one contract
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
House Extensions in Islington.
An extension is the surest way to get the open-plan kitchen and dining room most families want, and the houses in Islington generally lend themselves to it: a side return to fill, a rear garden to build into, or on larger plots room for a full-width or double-storey addition.
We design the extension around how you will use it, not around the maximum footprint the rules allow. That means thinking about light, the level change to the garden, where the kitchen sits, how the old and new parts of the house meet and what happens to the rooms you already have. The structural engineering, party wall matters and building control inspections are all handled by us.
Approvals are checked on the first visit. Many single-storey rear extensions fall within permitted development, but the London Borough of Islington applies tighter rules in conservation areas and to flats and listed buildings, so we confirm the route before any drawings are produced and then manage the application if one is needed.
- Area
- Islington, N1
- Council
- London Borough of Islington
- Housing
- Georgian and early Victorian terraces and squares in Barnsbury and Canonbury, Highbury villas, converted warehouses and new apartments near the canal
- Transport
- Angel, Highbury & Islington, Essex Road
- Rear or side return, on site
- 10 to 16 weeks
- Design and approvals
- 8 to 14 weeks before start
- Glazing lead time
- 6 to 10 weeks, ordered early
- Consent
- Permitted development or householder application
- Party wall
- Notices served by us
Islington: the houses and the planning rules.
Islington is Georgian and early Victorian London north of the Angel: flat-fronted brick terraces around the squares of Barnsbury and Canonbury, the grander villas of Highbury Fields, and the canal-side warehouses now converted to apartments. The conservation areas are extensive and many houses are listed.
We have refurbished houses in Highbury and the surrounding streets, and the pattern here is consistent: opening up a narrow terraced plan, adding a side or rear extension at lower ground level, converting the loft and restoring the front elevation. Islington's conservation team expects rear extensions to be subordinate and well detailed.
The Barnsbury, Canonbury, Highbury Fields and Duncan Terrace/Colebrooke Row conservation areas cover most of the district.
London Borough of Islington
Islington decides applications and applies Article 4 directions in most conservation areas, so rear extensions and roof changes generally need a full application.
Basements
The borough's basement policy limits depth and footprint and requires a structural method statement and impact assessment.
Listed terraces
Many terraces are Grade II listed; internal alterations, including removing walls, need listed building consent.
Approvals for house extensions in Islington.
Many single-storey rear extensions are permitted development within the 3 or 4 metre limits, or 6 and 8 metres under prior approval. Conservation areas, flats, listed buildings and larger schemes need a householder application, and every extension needs building regulations approval.
Islington decides applications and applies Article 4 directions in most conservation areas, so rear extensions and roof changes generally need a full application.
What house extensions in Islington includes.
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
From site visit to handover.
- 01
Site visit & consultation
We visit, listen and measure. Brief, budget and constraints understood before any advice is given.
- 02
Design & itemised quote
Our architects and engineers draw the scheme, and from that we provide a transparent, itemised quotation for your approval.
- 03
Planning & approvals
Planning applications, building control and party wall matters handled for you.
- 04
Build, managed weekly
Our own trades, sequenced by a site manager. Progress reported every week.
- 05
Handover & aftercare
Joint snagging walk-through, documentation, and a guarantee on our workmanship.
House Extensions in Islington: your questions.
Do I need planning permission for an extension in Islington?
Not always. Permitted development covers many single-storey rear extensions on houses, but the London Borough of Islington removes those rights in some conservation areas, and flats and listed buildings always need an application. We confirm the route at the site visit.
How long does an extension take to build?
Ten to sixteen weeks on site for a single-storey extension once approvals are in place, plus the design and approval period beforehand. Glazing has the longest lead time, so we order it early.
Which parts of Islington do you cover?
All of Islington and N1, including Gibson Square, Canonbury Square, Highbury Fields, Thornhill Road, Colebrooke Row, Liverpool Road, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Our work near Islington.
Other services in Islington.
House Refurbishment in Islington
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Flat Refurbishment in Islington
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Structural Alterations in Islington
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Loft Conversions in Islington
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Basement Conversions in Islington
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Kitchen Renovation in Islington
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Bathroom Renovation in Islington
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Bespoke Joinery & Fitted Furniture in Islington
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Architectural & Interior Design in Islington
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Planning Permission & Building Regulations in Islington
Read moreHouse Extensions across London.
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We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.