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The Apex HH at 7115 Macapa Drive — a Thornton contemporary in the Hollywood Hills with pool, sport court, and city views

Los Angeles · Full-Service Development Firm

The home you imagine,
on the street you love.

Thornton Development Group designs, builds, and represents exceptional single-family and multifamily residences across Los Angeles — typically delivered in 8–24 months depending on scope, at competitive cost.

Where Land Becomes Legacy

One firm, from first sketch to final sale.

TDG is a Los Angeles real estate developer and luxury home builder — a vertically integrated firm founded and led by RC and Oliver Thornton, with over 30 years of development experience. Because we design, develop, and represent every project under one roof, nothing is lost between the architect's table and the closing table.

Dozens of completed projects across the Hollywood Hills, the Westside, and the Valley — with record-breaking price-per-square-foot results in their neighborhoods.

Available Now

Thornton homes for sale.

Finished Thornton residences on the market right now — plus one you can still put your stamp on, mid-construction.

The Pyramid MCM Under Construction

$17,880,000

“The Pyramid MCM”

7305 Pyramid Place · Hollywood Hills

7 Bed9 Bath9,200 Sq Ft

In construction — reserve now and select finishes.

View property
The Berryman Residence For Sale

$3,195,000

“The Berryman Residence”

4432 Berryman Avenue · Culver City

6 Bed5.5 Bath3,140 Sq Ft

View property

See the full pipeline

Four Ways to Work With TDG

Choose your path.

Buy a TDG Home

Move into a finished Thornton residence — or reserve one mid-construction and make select finishes your own.

Current developments

Build on Your Lot

You own the land; we handle everything else. Design, permits, and construction — delivered in 12–24 months.

How it works

Invest With TDG

Passive positions in single-purpose LLCs with an 8% preferred return, paid before the manager earns a dollar.

Investment structure

Sell Us Your Lot

Own a teardown, hillside lot, or underbuilt property? We buy direct — no commissions, no staging, no waiting.

Get an offer

The Record

30+Years developing in LA
35+Projects designed & built
13Projects in active development
10+Neighborhoods served

Where We Build

Exclusively Southern California.

From hillside view lots to flatland family streets, TDG builds where we know the comps, the inspectors, and the neighbors — Los Angeles and its best-adjacent markets.

  • Hollywood Hills
  • Beverly Hills
  • Bel Air
  • Pacific Palisades
  • Malibu & Coastline
  • Brentwood
  • Century City & Westwood
  • West Hollywood
  • The Valley
  • Pasadena & Altadena
  • Silver Lake & East LA
  • South Bay

The Library

Know before
you build.

Plain-English guides to developing in Los Angeles — cost, permitting, design and returns — written by the team doing the work. Pick a topic.

See All Insights

Questions

Frequently
asked.

Pick a topic to see the questions we hear most.

General information only — not legal, tax or financial advice. Timelines and costs vary with scope, site conditions and city processing.

What's included in the contract price?

Everything needed to complete the home: full construction cost, construction management, interior design, and landscape architecture. On projects that already have ready-to-issue plans, the price also covers demolition, permit fees, new utility fees, and other city-related costs. Projects still in pre-RTI stages carry additional cost for architecture, permitting, and preliminary planning. No hidden costs, no surprises later.

How long does it take to build?

It depends on the site. Once plans are ready to issue, flat lots with minimal or no caisson requirements typically complete in 8–12 months. Hillside properties requiring moderate to major caisson and retaining wall work run 12–24 months. If you don't have RTI plans yet, we can recommend architects and help you secure approvals. All timelines are estimates, not guarantees — actual schedules vary with project scope, site conditions, city processing times, and timely client funding and decisions.

What are the financing options?

TDG doesn't lend directly, but we'll connect you with our network of preferred lenders who specialize in construction financing — whether you're funding a full redevelopment or a ground-up build.

Do you build outside Los Angeles?

We build in Los Angeles and select adjacent markets — Malibu, Pasadena, Orange County, and the South Bay — plus a significant focus on the communities affected by the Palisades and Eaton fires. We stay in these areas because we know the restrictions, codes, and ordinances in each jurisdiction, which is what keeps our timelines and budgets honest.

More on building

Oliver and RC Thornton beside the pool at a completed Thornton development

The Founders

Built on a family name.

RC and Oliver Thornton have completed dozens of million-dollar projects together — RC leading development, Oliver leading sales as one of LA's top agents — backed by TDG's in-house design, construction management, and representation operation.

Meet the Leadership

Have a lot, a home, or capital to put to work?

Tell us what you're holding. We'll tell you what it could become.

Start the Conversation