Garden Annexe in Rickmansworth
Serving the Three Rivers District Council planning area · Rickmansworth (Metropolitan line)
Self-contained living spaces perfect for guests, family, or rental income. Built to our 2026 Part L standard — adding £35,000–£85,000 to your Rickmansworth property. From £65,000.
0.15 W/m²K
U-value
£35,000–£85,000
Value uplift
25–40 days
Build time
£103
LDC fee
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Matched to Rickmansworth installers who know Three Rivers District Council planning requirements.
Garden Annexe in Rickmansworth, Hertfordshire
Rickmansworth sits at the southern tip of Hertfordshire, where the Chess, Colne, and Gade rivers converge at the edge of the Chilterns. It combines outstanding natural setting — including the Aquadrome and Chorleywood Common nearby — with a direct Metropolitan line connection to Baker Street in 35 minutes. Its blend of Hertfordshire countryside and London accessibility places it firmly in the premium commuter belt. Rickmansworth properties, particularly in Croxley Green and the Mill End area, frequently feature gardens of exceptional size relative to their market value. The Three Rivers district has a straightforward planning position for most outbuildings, and the area's high professional household density sustains strong demand for home office and creative studio builds.
Why Rickmansworth Homeowners Choose This Build
2026 Technical Specification
Planning in Rickmansworth — Three Rivers District Council
Rickmansworth Town Centre Conservation Area has limited residential coverage. Most garden builds on surrounding residential streets fall under standard Permitted Development rights within Three Rivers District. Note that Three Rivers is outside the Greater London planning boundary — applications are made to Three Rivers District Council, not a London borough. The LDC fee is £103.
£103
LDC fee
2.5m
Max height (boundary)
50%
Max garden coverage
How We Work in Rickmansworth
Feasibility Assessment
Check planning viability, site suitability, and building control requirements for habitable space.
Planning Application
Full management of the planning permission process, including design and submit documentation.
Building Control
Ensuring all regulations for habitable space are met, including fire safety and accessibility.
Complete Construction
Full build including all utilities, plumbing, electrics, and interior finishes.
See Completed Projects Near Rickmansworth
Real builds with specs, materials, and planning routes documented.
Garden Annexe FAQs — Rickmansworth
“The team connected me with a fantastic installer who built my garden office in under 10 days. It's warm, quiet, and I love working from it every day.”
“Quick, professional, and totally transparent. I compared three quotes and picked the best one. My music studio is perfectly soundproofed.”
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