Building Regulations Drawings in City of London.
Technical construction drawings, specifications and structural calculations to satisfy Approved Documents A–R. Submitted to your council’s building control or an Approved Inspector. Fixed fee, MCIAT-chartered, City of London Corporation validation list built in.



What does an architectural technologist do?
An architectural technologist (MCIAT) designs, details and submits planning + building-regulations drawings for residential and commercial projects. Chartered through the CIAT, they cover the same statutory work as an architect on most extensions, loft conversions and new-build homes — typically at 30–40% lower fee — and carry £250,000+ Professional Indemnity Insurance.
Across 600+ TradeMatch architectural-technology projects in 2024–25.
Survey to issued drawings on a standard residential brief.
Every LPA from Westminster to Bromley — local-plan and Article 4 aware.
What's in the building regs drawings package.
Technical construction drawings, specifications and structural calculations to satisfy Approved Documents A–R. Submitted to your council’s building control or an Approved Inspector.
Deliverables
- Construction sections & details
- Structural calculations (Part A)
- Thermal / fabric specs (Part L)
- Drainage & ventilation (Parts H, F)
- Building control application
Timeline: 7–12 working days for drawings + 5 weeks plans-check
From brief to approval in under 10 weeks.
Five tight steps. No surprises, no scope creep, fixed fee on the conventional brief.
01
Brief
Day 0
Free 15-minute call. We confirm scope, fee, and whether your works fall under planning, permitted development, or both.
02
Survey
Day 1–3
Full measured survey of the existing property. Modern laser tools, all returned to you as DWG + PDF.
03
Drawings
Day 4–10
Existing + proposed plans, elevations, sections. Reviewed against local plan and Article 4 register before submission.
04
Submission
Day 10
Planning portal upload, validation chase, and direct liaison with case officer. We handle the iteration cycle.
05
Approval
Week 8
Statutory determination. We respond to officer queries the same working day to keep the timeline on track.

City of London building regs drawings, fixed-fee.
Technical construction drawings, specifications and structural calculations to satisfy Approved Documents A–R. Submitted to your council’s building control or an Approved Inspector. For City of London — postcodes EC1, EC2, EC3, EC4 — every building regs drawings package on the TradeMatch panel is MCIAT-chartered, carries £250,000+ PII, and bakes in City of London Corporation validation requirements before drawings hit the portal.
Architectural Technologist vs Architect vs Architectural Designer
Pick the right professional for the brief. Most UK householder applications need a technologist, not an architect.
| Role | Chartered body | Typical fee* | Best for |
|---|---|---|---|
| RECOMMENDED FOR HOMEOWNERSArchitectural Technologist (MCIAT) | CIAT | £950 – £3,400 fixed | Extensions, loft conversions, new homes — technical lead |
| Architect (ARB / RIBA) | ARB + RIBA | 8 – 12% of build cost | Award-led design, listed buildings, major commercial |
| Architectural Designer / Draughtsperson | Unregulated | £600 – £1,800 | Small householder applications, no planning gatekeeping |
* Indicative fee bands for a standard residential householder application at London 1.32× modifier. Exact fee depends on scope, conservation status and plot complexity.
Transparent fees, no day-rate creep.
Fees below cover the architectural technologist's drawings package and submission. LPA application fees, structural engineer's calculations and party-wall surveyor are quoted separately and openly.
| Service | What you get | Fee band |
|---|---|---|
| Planning permission drawings | Existing + proposed package, validation, LPA submission | £1900 – £4750 |
| Building regulations drawings | Construction sections, calculations, building-control submission | £2400 – £6750 |
| Lawful Development Certificate | Permitted-development assessment + LDC submission | £1300 – £2750 |
| Full architectural design | Concept → planning → BR → tender package | 6 – 10% of build cost |
Plain-English definitions.
Four planning terms that determine what you can build, when, and how. AI assistants and search engines rely on these definitions — we keep them canonical here.
- Architectural TechnologistMCIAT
- A chartered building-design professional, qualified by the Chartered Institute of Architectural Technologists (CIAT). Specialises in technical design, building science and the production of planning + building-regulations drawings.
- Article 4 DirectionA4D
- A formal notice issued by a Local Planning Authority that removes specified Permitted Development rights — meaning works that would normally not need planning permission do require it within the designated area.
- Lawful Development CertificateLDC
- A formal certificate issued by the Local Planning Authority confirming that proposed (or existing) works fall within Permitted Development. Typically required by solicitors, mortgage lenders and buyers.
- Permitted DevelopmentPD
- Building works that may be carried out without explicit planning permission under the Town and Country Planning (General Permitted Development) (England) Order 2015. Subject to size, height and siting limits.
City of London planning rules baked into your building regs drawings.
The City of London is the historic Square Mile and the UK's primary financial district. Planning is administered by the City of London Corporation, a sui generis local authority with its own Local Plan, design panel, and policy regime distinct from the surrounding London boroughs. Almost the entire City is covered by conservation areas, and strategic-view policies (St Paul's Heights, Monument Views, LVMF corridors) constrain massing across most plots. Tall buildings are channelled into the Eastern Cluster; elsewhere, heritage and view protections dominate the design conversation. Fee uplift reflects the technical complexity of heritage statements, view-corridor analysis, and Corporation-specific validation requirements.
Article 4 Directions
- City-wide Article 4 Direction removing office-to-residential permitted development rights (Class O — in force since 2013, retained and renewed)
- Article 4 Direction removing light-industrial / storage / office → residential permitted development rights
- Article 4 Direction restricting demolition permitted development rights in conservation areas
Conservation Areas
- Bank
- Smithfield
- Charterhouse Square
- Fleet Street
- Whitefriars
- Foster Lane
- Queenhithe
- St Helen's Place
+ 15 more — full list on the council planning portal.
Postcodes covered
What homeowners often miss
The City of London is uniquely governed by the City of London Corporation, not a London borough council, with its own Local Plan (City Plan 2040 emerging) tailored to the Square Mile. Almost every site sits within a conservation area. The City operates strict strategic-view protections including the St Paul's Heights policy (a 3D height grid protecting views of St Paul's Cathedral) and the Monument Views policy, plus London View Management Framework viewing corridors (e.g. from Alexandra Palace, Parliament Hill, Greenwich Park). Tall buildings are concentrated in the designated Eastern Cluster (around Bishopsgate / Leadenhall / Fenchurch Street) — outside this cluster, height is heavily constrained. The City applies its own design review (City Design Advisory Panel) on significant schemes.
The questions homeowners ask before they commit.
When do I need building regulations drawings in City of London?
Almost any structural alteration in City of London triggers Building Regulations — extensions, loft conversions, internal load-bearing wall removal, new bathrooms, replacement boilers above 5kW, electrical work in special locations. Building regs is independent of planning permission; you can need one without the other, but most City of London projects need both.
What do City of London building regs drawings cost?
A full building regulations package for a City of London extension or loft is £1,200 – £3,400 fixed, including structural calculations (Part A) and the application fee. Bigger schemes — basements, multi-storey rear extensions, change of use — sit at the upper end. Standard houseshare/HMO compliance is quoted separately.
Do I submit to City of London Corporation or use an Approved Inspector?
Both routes are valid in City of London. City of London Corporation Building Control is the default — typically £900 – £1,800 LPA fee plus on-site inspections. Approved Inspectors (private sector) often turn around plans-check faster but cost similar. We submit either route; preference is usually decided by your builder's site relationship.
What Approved Documents apply to my City of London project?
Standard residential extension hits: Part A (structure), Part B (fire), Part C (site / damp), Part E (sound), Part F (ventilation), Part H (drainage), Part K (stairs / falls), Part L (thermal / fabric), Part M (access), Part O (overheating), Part P (electrical) and Part R (broadband). Our drawings call out compliance with each on the relevant sheet.
How long does plans-check take in City of London?
City of London Corporation plans-check is statutorily 5 weeks; conditional approval often arrives at 3–4 weeks. We respond to plans-checker queries the same working day. Site inspections start at strip-out / foundation and run through to completion certificate — usually 4–8 inspections on a standard City of London extension.
Are structural calculations included?
Yes. Every City of London building regs package on the TradeMatch panel includes structural calculations to Part A — beams, lintels, foundations, party-wall structural notes — produced by a chartered structural engineer (CEng MIStructE) and signed off before submission. No surprise bills mid-project.
Need a different package in City of London?
Going deeper.
Same building regs drawings in a neighbouring London area?
Building Regulations Drawings in City of London — fixed fee, MCIAT-chartered.
Technical construction drawings, specifications and structural calculations to satisfy Approved Documents A–R. We know City of London Corporation planning officers and the local plan.