Single storey rear extension and first floor front extension. Conversion of garage into habitable room and replacement of garage door with fenestration. Alterations to existing rear patio area.
Demolition of existing garage to provide part single, part two-storey side extension. Single storey rear extension. Alterations to roof including rear dormer window and roof lights to front, side and rear elevations to facilitate a loft conversion. New roof to front elevation over front entrance and side extension. New rear steps.
Single storey rear extension and first floor front extension. Conversion of garage into habitable room and replacement of garage door with fenestration. Alterations to existing rear patio area.
Demolition of existing garage to provide part single, part two-storey side extension. Single storey rear extension. Alterations to roof including rear dormer window and roof lights to front, side and rear elevations to facilitate a loft conversion. New roof to front elevation over front entrance and side extension. New rear steps.
Building-control records are not yet collected for Barnet — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 9 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 9 of 9 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 9 of 9 premises. Some normally permitted changes may require planning permission.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
Planning precedent7 applications and 8 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy5 EPC records; ratings C: 1, D: 2, E: 2.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
Planning Atlas Pro
Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
No intent signal is currently recorded in this postcode.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
N12 9PH, Barnet: planning and property history | Planning Atlas