21 Mildmay Grove North Islington N1 4RH
Demolition of existing single storey rear extension and construction of full width rear extension at lower ground and half width rear extension at upper ground, with associated landscaping and internal alterations. Addition of roof terrace at first floor level and rooflight to existing second floor roof.
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Progress
Application details
- Reference
- P2026/1429/FUL
- Local authority
- Islington
- Postcode
- N1 4RH
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 3 Jun 2026
- Validated
- 3 Jun 2026
- Comments close
- 18 Jul 2026
- Target decision
- 28 Jul 2026
Estimated project value
£34k–£57k
Based on the 14.0m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 14m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 4 recent sales are listed below.
- 13A MILDMAY GROVE NORTH, LONDON, N1 4RHFlat or maisonette · Leasehold · £900,0009 months ago24 Nov 2025
- FLAT 2, 37F MILDMAY GROVE NORTH, LONDON, N1 4RHFlat or maisonette · Leasehold · £930,0009 months ago14 Nov 2025
- 15B MILDMAY GROVE NORTH, LONDON, N1 4RHFlat or maisonette · Leasehold · £950,00014 months ago16 Jun 2025
- 37J MILDMAY GROVE NORTH, LONDON, N1 4RHDetached · £1,350,00017 months ago28 Mar 2025
- FLAT 1, 37 MILDMAY GROVE NORTH, LONDON, N1 4RHFlat or maisonette · Leasehold · £769,9002 years ago12 Aug 2024
- 9B MILDMAY GROVE NORTH, LONDON, N1 4RHFlat or maisonette · Leasehold · £361,2502 years ago29 Sept 2023
- FLAT 4, 37F MILDMAY GROVE NORTH, LONDON, N1 4RHFlat or maisonette · Leasehold · £650,0003 years ago1 Sept 2023
- 15B MILDMAY GROVE NORTH, LONDON, N1 4RHFlat or maisonette · Leasehold · £670,0003 years ago20 Mar 2023
Homes here go for about £834,950 — the median of the last 8 market sales in N1 4RH, £361,250 to £1,350,000.
Contains HM Land Registry data © Crown copyright and database right 2025. 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
- 19 Mildmay Grove North IslingtonPermittedNext door
- Mildmay Grove North Islington N1 4RHPermittedNext door
- 23 Mildmay Grove North IslingtonPermittedNext door
- 25 Mildmay Grove North Islington N1 4RHUnknownNext door
- 13 Mildmay Grove North IslingtonPermittedAdjoining
- 5 Colony Mews Islington N1 4RBPermittedAdjoining