Blackfriars — covered by City of London Corporation.
Planning permission drawings delivered by an MCIAT chartered team.
Building regulations drawings delivered by an MCIAT chartered team.
Loft conversion drawings delivered by an MCIAT chartered team.
House extension drawings delivered by an MCIAT chartered team.
Mansard roof extensions delivered by an MCIAT chartered team.
Garage conversion drawings delivered by an MCIAT chartered team.
Basement conversion drawings delivered by an MCIAT chartered team.
Structural calculations delivered by an MCIAT chartered team.
Measured building survey delivered by an MCIAT chartered team.
Party wall services delivered by an MCIAT chartered team.
Rear dormer drawings delivered by an MCIAT chartered team.


EC4V primarily covers Blackfriars in City of London.
Decisions for EC4V are made by City of London Corporation. Standard Permitted Development rules apply for most rear extensions and loft conversions on terraced and semi-detached houses, unless the property is in a conservation area, is listed, or sits under an Article 4 Direction. Article 4 in City of London: Yes.
Building regs from £950. We do not charge hourly. Free site survey across all EC4V addresses.
From first call to planning decision: typically 12–14 weeks. Site survey week 1, design weeks 2–3, validation 1–2 weeks, statutory 8-week determination. City of London Corporation timelines align with the national norm.
Blackfriars in EC4V is characterised by the housing stock of City of London — broadly very limited residential — barbican estate (listed post-war).

Pick a slot that suits you. No obligation and no sales pressure, just straight answers on your planning route.
Every EC4V postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. EC4V fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| EC4V | Blackfriars | mixed Victorian and inter-war stock | A drawing package at an EC4V address in Blackfriars is determined by City of London Corporation under its own Local Plan policies for Blackfriars. |
| EC1A | Smithfield | Mostly commercial, residential lofts | Adjoining district to EC4V, also inside City of London for drawing package purposes. |
| EC2Y | Barbican | Listed Brutalist apartments (Barbican Estate) | Adjoining district to EC4V, also inside City of London for drawing package purposes. |
| EC3N | Tower Hill / Aldgate | mixed stock | Adjoining district to EC4V, also inside City of London for drawing package purposes. |
| EC4M | St Paul's | Mostly commercial, listed residential | Adjoining district to EC4V, also inside City of London for drawing package purposes. |
Roof pitch, wall build-up and plot depth change every few EC4V streets, and each one changes what a drawing package can achieve at that address.
Conservation areas covering EC4V (Blackfriars): City of London Corporation runs 27, and Fleet Street, Whitefriars, St Paul's are the ones EC4V (Blackfriars) owners meet most. A drawing package inside a EC4V (Blackfriars) conservation area loses permitted development, so the EC4V (Blackfriars) submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In St Paul's a drawing package is judged on the street elevation first.
EC4V (Blackfriars) and Article 4: Multiple Article 4 Directions around office-to-residential, demolition, and shopfront changes. A drawing package planned at a EC4V address is checked against that direction first; City of London Corporation publishes the EC4V (Blackfriars) extent, and the EC4V line rarely follows the EC4V (Blackfriars) boundary you would expect.
EC4V (Blackfriars) housing stock: Very limited residential — Barbican Estate (listed post-war), Golden Lane Estate, modern luxury flats; overwhelmingly commercial. Overwhelmingly commercial; residential planning extremely constrained; one of the two highest listed-building densities in London. Read that before choosing a drawing package route in EC4V (Blackfriars) — construction, not postcode, sets what is achievable. City of London Corporation charges £548 for a householder application and has 8 weeks to determine it.
Sources for this EC4V drawing package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
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