There are 753 active development of building projects companies in Harrow, forming a substantial local industry cluster. Companies in this sector range from small specialist firms to larger established businesses. Companies in this sector average 8.5 years old, reflecting an established local market with a healthy mix of mature businesses and newer entrants. Growth has been exceptional: 50% of active companies were formed since 2020, with a further 37% established during the 2010s. This makes it one of the fastest-growing sectors in Harrow. Across the UK, other leading locations for development of building projects include London (20,318 companies) and Manchester (1,758).
There are 753 active development of building projects companies (SIC code 41100) currently registered in Harrow, based on Companies House data. This includes businesses of all sizes, from sole traders to large enterprises, that have selected this SIC code as their primary activity.
The average development of building projects company in Harrow is 8.5 years old. This represents a balanced mix of established businesses and newer market entrants. Company ages are calculated from incorporation dates registered at Companies House.
Yes, the development of building projects sector in Harrow is experiencing significant growth. 50% of currently active companies were formed since 2020, and 37% during the 2010s. This sustained formation rate indicates strong demand.
Beyond Harrow, the leading UK locations for development of building projects companies are: London (20,318), Manchester (1,758), Birmingham (1,373), Bristol (1,242), Glasgow (1,019). These concentrations often reflect regional economic specialisations, proximity to key markets, or established industry clusters.
Alongside development of building projects, other significant industries in Harrow include: Buying and selling of own real estate (2,460), Other letting and operating of own or leased real estate (2,051), Management consultancy activities other than financial management (1,220), Information technology consultancy activities (1,008). This diversity of business activity contributes to Harrow's overall economic resilience.
You can search for development of building projects companies in Harrow using UVAGATRON's company explorer, which allows filtering by SIC code, location, company status, and risk profile. Each company record includes director information, filing history, and risk signals from 50+ government databases. Alternatively, you can search directly on Companies House.
Search, filter, and analyse 753 development of building projects companies in Harrow with AI-powered risk intelligence.
Data sourced from Companies House, HM Land Registry, FCA Register, and 50+ government databases. Last updated: 2026-04-17.