1 Barnsbury Square Islington N1 1JL
The construction of a rear dormer window extension at roof level and roof terrace to provide an additional bedroom, en-suite and storage; three velux windows to the front roof slope.
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Progress
Application details
- Reference
- P121168
- Local authority
- Islington
- Postcode
- N1 1JL
- Ward
- Bow East
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 10 Jul 2012
- Validated
- 10 Jul 2012
- Comments close
- 27 Sept 2012
- Target decision
- 4 Sept 2012
- Decided
- 23 Oct 2012
Estimated project value
£37k–£100k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
New owners, recently moved in. First work on a house usually follows within months of completing. 4 recent sales are listed below.
- APARTMENT 2, 16 BARNSBURY SQUARE, LONDON, N1 1JLFlat or maisonette · Leasehold · £762,0002 months ago7 Aug 2026
- APARTMENT 6, 3 BARNSBURY SQUARE, LONDON, N1 1JLFlat or maisonette · Leasehold · £1,650,00011 months ago31 Oct 2025
- 17C BARNSBURY SQUARE, LONDON, N1 1JLFlat or maisonette · Leasehold · £482,50012 months ago16 Oct 2025
- APARTMENT 7, 3 BARNSBURY SQUARE, LONDON, N1 1JLFlat or maisonette · Leasehold · £690,00019 months ago6 Mar 2025
- 4 BARNSBURY SQUARE, LONDON, N1 1JLOther · Not a standard market sale · £2,100,0002 years ago30 Sept 2024
- APARTMENT 5, 3 BARNSBURY SQUARE, LONDON, N1 1JLFlat or maisonette · Leasehold · £680,0002 years ago9 Sept 2024
- APARTMENT 8, 16 BARNSBURY SQUARE, LONDON, N1 1JLFlat or maisonette · Leasehold · £3,300,0002 years ago17 Jun 2024
- FLAT 5, MOUNTFORT HOUSE, 15 BARNSBURY SQUARE, LONDON, N1 1JLFlat or maisonette · Leasehold · £1,230,0003 years ago11 Oct 2023
Homes here go for about £762,000 — the median of the last 7 market sales in N1 1JL, £482,500 to £3,300,000.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
Nearby applications
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