Class A Atlas relies on 16 dated primary sources spanning brokerage research, official statistics, rating bodies, and industry-body cost data — every source is mapped to the specific metrics it feeds.

16 primary sources are listed and dated.
Brokerage research, official statistics, rating bodies, and industry-body cost data.
Every source has a 'last checked' date and a list of metrics it feeds.

Sources

The full list of primary sources Class A Atlas relies on, organised by category. Each entry shows what we use it for and when we last checked it.

TL;DR

16 primary sources are listed and dated.
Brokerage research, official statistics, rating bodies, and industry-body cost data.
Every source has a 'last checked' date and a list of metrics it feeds.

brokerage

CBRE Marketview reports — CBRE.
Used for: Class A asking rent, vacancy rate, net absorption, submarket tiering. Last checked: 2026-04-01.
JLL Office Insight — JLL.
Used for: Class A asking rent, rent-free incentive levels, fit-out">fit-out cost ranges. Last checked: 2026-04-01.
Cushman & Wakefield Marketbeat — Cushman & Wakefield.
Used for: Vacancy rate, lease length, concession packages. Last checked: 2026-04-01.
Savills World Research — Savills.
Used for: EMEA Class A asking rent, prime yield, trophy-asset comparables. Last checked: 2026-04-01.
Knight Frank Global Cities and Skyscraper Index — Knight Frank.
Used for: Trophy asset benchmarking, global rent comparison. Last checked: 2026-04-01.
Colliers Global Office Outlook — Colliers.
Used for: APAC Class A asking rent, vacancy and absorption. Last checked: 2026-04-01.

official

UK business-rates valuation lists — Valuation Office Agency (UK).
Used for: UK business rates input to occupancy cost. Last checked: 2026-03-15.
US Bureau of Labor Statistics — Quarterly Census of Employment and Wages — US BLS.
Used for: Talent index labor pool input. Last checked: 2026-03-20.
OECD corporate tax statistics — OECD.
Used for: Corporate tax rate per market. Last checked: 2026-03-30.
Corporate occupier disclosures (10-K, 20-F, annual reports) — Various issuers.
Used for: Tenant identity and floorplate occupancy at named buildings. Last checked: 2026-04-10.

rating-body

USGBC LEED project directory — US Green Building Council.
Used for: LEED certification status of notable buildings. Last checked: 2026-04-05.
BREEAM certified building register — BRE Group.
Used for: BREEAM certification status of notable buildings. Last checked: 2026-04-05.
BCA Green Mark directory — Building and Construction Authority (Singapore).
Used for: Singapore certification status. Last checked: 2026-04-05.
WELL Building Standard certifications — International WELL Building Institute.
Used for: WELL certification status of notable buildings. Last checked: 2026-04-05.

industry-body

RICS Building Cost Information Service — Royal Institution of Chartered Surveyors.
Used for: EMEA fit-out cost ranges by spec level. Last checked: 2026-03-25.
Turner Construction Cost Index — Turner Construction.
Used for: US construction cost calibration for fit-out. Last checked: 2026-03-25.