The following made their forturne in the built environment and are worth betweeen 拢155m and 拢52m according to the Sunday Times Rich List

516th Robert Carter and family - 拢155m
The carter family chaired by Robert, 54, owns Norwich-based RG Carter.
2007: 417th, 拢172m

578th Duncan Davidson and family - 拢137m
Founder of Persimmon's stake has halved in last year.
2007: 301st, 拢245m

616th Derek Mickel and family - 拢125m
Owners of Glasgow-based housebuilder Mactaggart & Mickel
2007: 700th, 拢100m

634th Mike Walker and family - 拢124
Walker owns two construction firms in Edinburgh, Walker Holdings (Scotland) and Westerwood.
2007: 566th, 拢123m

636th Ron Jelley and family - 拢123m
Family has stake in Leicester housebuilder Jelson Holdings.
2007: 574th, 拢120m

642nd Jonathan Hitchings and family - 拢121m
Jonathan is chairman of Cheltenham-based Robert Hitchens Group.
2007: 119m, 604=

644th Bill Robertson and family - 拢120m
Scotland-based contruction business Robertson Group is made up of three firms.
2007: 949th, 拢70m

693rd John Seddon and family - 拢118m
Cheshire-based Seddon Group also manages golf clubs.
2007: 652nd, 拢107m

701st Tony Pidgley - 拢115m
His stake in Berkeley is now valued at 拢23m.
2007: 566th, 拢123m

701st Dick Watson and family - 拢115m
Watson benefitted from the sale of Keepmoat for 拢783m last August.
2007: 949th, 拢70m

717th The Brett Family - 拢112m
Robert Brett & Sons is a Canterbury-based construction and building materials group.
2007: 619th, 拢112m

724th Johnny and Patsy Byrne - 拢110m
Londong builder Byrne Group worked on Arsenal鈥檚 Emirates stadium and No 1 court at Wimbledon.
2007: 834th, 拢80m

724th Sir Fraser and Gordon Morrison - 拢110m
Ex-directors of Morrison Construction which was taken over by AWG in 2000.
627th, 拢110m

759th Richard Higgins - 拢105m
Heads up Essex-based builder Higgins group.
2007: 659th, 拢105m

845th Edelin Davies - 拢98m
Wealth comes from Loughborough building contractor William Davis.
2007: 557th, 拢125m

854th Michael and John Taggart - 拢95m
Run Belfast-based Taggart homes.
2007: 608th, 拢115m

871st Irving Weaver - 拢92m
Weavers Doncaster-based strata building group in worth 拢85m.
2007 645th, 拢109m

879th John Muir - 拢90m
Owns the Ayr-based construction group JW Muir.
2007: 777th, 拢90m

915th Stephen and Paul Harrison 拢87m
Brothers Paul and Stephen Harrison run Northallerton-based Harron Homes.
2007: 793rd, 拢87m

924th Michael Masterson - 拢85m
Construction business Masterson Holdings is based in Hemel Hempstead.
2007: 690th, 拢102m

924th Glyn Watkin Jones - 拢80m
Glyn is handing over Banger builder Watkin Jones to his son Mark.
2007: 896th, 拢75m

969th Rick Willmott - 拢80m
Hertfordshire based builder Willmott Dixon is worth about 拢150m.
2007: 834th, 拢80m

And finally...
1415th Lord and Lady Rogers - 拢52m
The architect is a new entry this year but has some way to go before he catches up with Sir Norman Foster